mirror of
https://gitcode.com/gh_mirrors/le/LearnOpenGLProject.git
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4.10实例化
This commit is contained in:
liujianjie
13
LearnOpenGL/assest/model/planet/planet.mtl
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13
LearnOpenGL/assest/model/planet/planet.mtl
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# Blender MTL
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# Material Count: 1
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newmtl Material.001
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Ns 96.078431
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Ka 0.000000 0.000000 0.000000
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Kd 0.640000 0.640000 0.640000
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Ks 0.087302 0.087302 0.087302
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Ni 1.000000
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d 1.000000
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illum 2
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map_Kd planet_Quom1200.png
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map_Bump planet_Quom1200.png
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20854
LearnOpenGL/assest/model/planet/planet.obj
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20854
LearnOpenGL/assest/model/planet/planet.obj
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File diff suppressed because it is too large
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BIN
LearnOpenGL/assest/model/planet/planet_Quom1200.png
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BIN
LearnOpenGL/assest/model/planet/planet_Quom1200.png
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After Width: | Height: | Size: 1.1 MiB |
BIN
LearnOpenGL/assest/model/rock/Rock-Texture-Surface.jpg
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LearnOpenGL/assest/model/rock/Rock-Texture-Surface.jpg
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After Width: | Height: | Size: 5.8 MiB |
13
LearnOpenGL/assest/model/rock/rock.mtl
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LearnOpenGL/assest/model/rock/rock.mtl
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# Blender MTL File: 'Rock1.blend'
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# Material Count: 1
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newmtl Material
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Ka 0.000000 0.000000 0.000000
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illum 2
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map_Bump Rock-Texture-Surface.jpg
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map_Kd Rock-Texture-Surface.jpg
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559
LearnOpenGL/assest/model/rock/rock.obj
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559
LearnOpenGL/assest/model/rock/rock.obj
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# Blender v2.71 (sub 0) OBJ File: 'Rock1.blend'
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# www.blender.org
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mtllib rock.mtl
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|
||||
vn -0.211900 -0.938300 -0.273300
|
||||
vn -0.131600 -0.849400 -0.511000
|
||||
vn -0.085500 -0.979800 0.180600
|
||||
vn -0.055900 -0.987800 0.145500
|
||||
vn -0.093600 0.986700 0.133100
|
||||
vn -0.043400 0.998800 -0.021100
|
||||
vn 0.752400 0.571000 0.328300
|
||||
vn 0.940500 0.338300 0.030400
|
||||
vn -0.364600 -0.020200 0.930900
|
||||
vn -0.006300 -0.522900 0.852400
|
||||
vn -0.549100 0.086400 -0.831300
|
||||
vn -0.818900 0.564900 0.101300
|
||||
vn -0.109100 -0.775000 -0.622500
|
||||
vn -0.043500 -0.970400 -0.237300
|
||||
vn -0.216400 -0.916000 -0.337700
|
||||
vn 0.483000 -0.867200 -0.120600
|
||||
vn 0.586200 -0.808400 0.052800
|
||||
vn 0.453300 -0.878500 0.150900
|
||||
vn 0.302100 -0.888100 0.346500
|
||||
vn -0.011700 0.990200 0.139300
|
||||
vn 0.104700 0.994500 -0.006000
|
||||
vn 0.287400 0.799500 -0.527400
|
||||
vn 0.226500 0.797300 -0.559400
|
||||
vn 0.166900 0.398200 -0.901900
|
||||
vn 0.449900 -0.591100 0.669400
|
||||
vn 0.991200 -0.131900 -0.006400
|
||||
vn 0.421700 -0.247600 -0.872200
|
||||
vn 0.719900 -0.329000 -0.611100
|
||||
vn 0.873300 -0.027000 -0.486400
|
||||
vn 0.695900 0.658800 -0.285700
|
||||
vn -0.735800 -0.552500 0.391500
|
||||
vn 0.149300 -0.476900 0.866200
|
||||
vn -0.467200 -0.714600 -0.520600
|
||||
vn -0.791300 -0.591900 0.152900
|
||||
vn 0.150800 0.022200 -0.988300
|
||||
vn 0.072000 -0.564800 -0.822100
|
||||
vn 0.246700 -0.812300 -0.528500
|
||||
usemtl Material
|
||||
s 1
|
||||
f 30/1/1 3/2/2 44/3/3
|
||||
f 50/4/4 7/5/5 37/6/6
|
||||
f 35/7/7 6/8/8 31/9/9
|
||||
f 37/10/6 7/11/5 33/12/10
|
||||
f 79/13/11 38/14/12 8/15/13
|
||||
f 28/16/14 4/17/15 46/18/16
|
||||
f 81/19/17 51/20/18 14/21/19
|
||||
f 82/22/20 52/23/21 21/24/22
|
||||
f 83/25/23 42/26/24 12/27/25
|
||||
f 55/28/26 19/29/27 49/30/28
|
||||
f 85/31/29 56/32/30 22/33/31
|
||||
f 86/34/32 38/35/12 20/36/33
|
||||
f 87/37/34 59/38/35 13/39/36
|
||||
f 88/40/37 60/41/38 23/42/39
|
||||
f 89/43/40 47/44/41 17/45/42
|
||||
f 90/46/43 63/47/44 15/48/45
|
||||
f 64/49/46 24/50/47 65/51/48
|
||||
f 92/52/49 49/53/28 19/54/27
|
||||
f 67/55/50 16/56/51 46/18/16
|
||||
f 68/57/52 25/58/53 69/59/54
|
||||
f 95/60/55 50/61/4 20/62/33
|
||||
f 96/63/56 71/64/57 16/56/51
|
||||
f 97/65/58 72/66/59 26/67/60
|
||||
f 40/68/61 10/69/62 74/70/63
|
||||
f 75/71/64 44/3/3 14/21/19
|
||||
f 21/24/22 54/72/65 75/71/64
|
||||
f 12/27/25 30/1/1 75/71/64
|
||||
f 76/73/66 37/6/6 19/29/27
|
||||
f 22/33/31 58/74/67 76/73/66
|
||||
f 58/74/67 20/36/33 50/4/4
|
||||
f 77/75/68 31/9/9 13/76/36
|
||||
f 62/77/69 77/78/68 59/38/35
|
||||
f 17/79/42 35/80/7 77/78/68
|
||||
f 78/81/70 33/12/10 15/82/45
|
||||
f 24/83/47 66/84/71 78/85/70
|
||||
f 19/86/27 37/10/6 78/81/70
|
||||
f 67/55/50 79/13/11 34/87/72
|
||||
f 70/88/73 79/89/11 67/90/50
|
||||
f 20/62/33 38/91/12 79/89/11
|
||||
f 71/64/57 80/92/74 46/18/16
|
||||
f 74/70/63 80/92/74 71/64/57
|
||||
f 10/93/62 28/94/14 80/95/74
|
||||
f 28/16/14 81/96/17 32/97/75
|
||||
f 53/98/76 81/96/17 28/16/14
|
||||
f 53/99/76 21/24/22 51/20/18
|
||||
f 40/68/61 82/100/20 53/98/76
|
||||
f 39/101/77 82/22/20 40/102/61
|
||||
f 39/101/77 9/103/78 52/23/21
|
||||
f 52/23/21 83/25/23 54/72/65
|
||||
f 9/103/78 27/104/79 83/25/23
|
||||
f 27/104/79 2/105/80 42/26/24
|
||||
f 35/7/7 84/106/81 49/53/28
|
||||
f 57/107/82 84/108/81 35/109/7
|
||||
f 57/107/82 22/33/31 55/28/26
|
||||
f 85/31/29 57/107/82 17/110/42
|
||||
f 48/111/83 85/31/29 47/112/41
|
||||
f 18/113/84 56/32/30 85/31/29
|
||||
f 56/32/30 86/34/32 58/74/67
|
||||
f 36/114/85 86/34/32 56/32/30
|
||||
f 36/114/85 8/115/13 38/35/12
|
||||
f 27/116/79 87/37/34 43/117/86
|
||||
f 9/118/78 61/119/87 87/37/34
|
||||
f 61/119/87 23/42/39 59/38/35
|
||||
f 88/40/37 61/119/87 9/118/78
|
||||
f 41/120/88 88/40/37 39/121/77
|
||||
f 41/120/88 11/122/89 60/41/38
|
||||
f 60/41/38 89/123/40 62/77/69
|
||||
f 11/122/89 29/124/90 89/123/40
|
||||
f 29/124/90 5/125/91 47/126/41
|
||||
f 30/1/1 90/46/43 45/127/92
|
||||
f 12/27/25 65/128/48 90/46/43
|
||||
f 65/51/48 24/50/47 63/129/44
|
||||
f 91/130/93 65/128/48 12/27/25
|
||||
f 43/131/86 91/130/93 42/26/24
|
||||
f 13/76/36 64/49/46 91/132/93
|
||||
f 64/49/46 92/52/49 66/133/71
|
||||
f 13/76/36 31/9/9 92/52/49
|
||||
f 31/9/9 6/8/8 49/53/28
|
||||
f 93/134/94 46/18/16 4/17/15
|
||||
f 69/135/54 93/136/94 32/137/75
|
||||
f 25/58/53 67/90/50 93/138/94
|
||||
f 44/3/3 94/139/95 69/135/54
|
||||
f 3/2/2 45/127/92 94/139/95
|
||||
f 15/82/45 68/57/52 94/140/95
|
||||
f 95/60/55 70/88/73 25/58/53
|
||||
f 33/12/10 95/60/55 68/57/52
|
||||
f 33/12/10 7/11/5 50/61/4
|
||||
f 36/141/85 96/63/56 34/87/72
|
||||
f 18/142/84 73/143/96 96/63/56
|
||||
f 73/143/96 26/67/60 71/64/57
|
||||
f 48/111/83 97/144/58 73/145/96
|
||||
f 5/125/91 29/124/90 97/146/58
|
||||
f 29/124/90 11/122/89 72/147/59
|
||||
f 72/66/59 98/148/97 74/70/63
|
||||
f 11/149/89 41/150/88 98/148/97
|
||||
f 41/150/88 1/151/98 40/68/61
|
||||
f 75/71/64 30/1/1 44/3/3
|
||||
f 76/73/66 50/4/4 37/6/6
|
||||
f 77/75/68 35/7/7 31/9/9
|
||||
f 78/81/70 37/10/6 33/12/10
|
||||
f 34/87/72 79/13/11 8/15/13
|
||||
f 80/92/74 28/16/14 46/18/16
|
||||
f 32/137/75 81/19/17 14/21/19
|
||||
f 53/99/76 82/22/20 21/24/22
|
||||
f 54/72/65 83/25/23 12/27/25
|
||||
f 84/108/81 55/28/26 49/30/28
|
||||
f 57/107/82 85/31/29 22/33/31
|
||||
f 58/74/67 86/34/32 20/36/33
|
||||
f 43/117/86 87/37/34 13/39/36
|
||||
f 61/119/87 88/40/37 23/42/39
|
||||
f 62/152/69 89/43/40 17/45/42
|
||||
f 45/127/92 90/46/43 15/48/45
|
||||
f 91/132/93 64/49/46 65/51/48
|
||||
f 66/133/71 92/52/49 19/54/27
|
||||
f 93/134/94 67/55/50 46/18/16
|
||||
f 94/140/95 68/57/52 69/59/54
|
||||
f 70/88/73 95/60/55 20/62/33
|
||||
f 34/87/72 96/63/56 16/56/51
|
||||
f 73/143/96 97/65/58 26/67/60
|
||||
f 98/148/97 40/68/61 74/70/63
|
||||
f 51/20/18 75/71/64 14/21/19
|
||||
f 51/20/18 21/24/22 75/71/64
|
||||
f 54/72/65 12/27/25 75/71/64
|
||||
f 55/28/26 76/73/66 19/29/27
|
||||
f 55/28/26 22/33/31 76/73/66
|
||||
f 76/73/66 58/74/67 50/4/4
|
||||
f 59/153/35 77/75/68 13/76/36
|
||||
f 23/42/39 62/77/69 59/38/35
|
||||
f 62/77/69 17/79/42 77/78/68
|
||||
f 63/154/44 78/81/70 15/82/45
|
||||
f 63/155/44 24/83/47 78/85/70
|
||||
f 66/156/71 19/86/27 78/81/70
|
||||
f 16/56/51 67/55/50 34/87/72
|
||||
f 25/58/53 70/88/73 67/90/50
|
||||
f 70/88/73 20/62/33 79/89/11
|
||||
f 16/56/51 71/64/57 46/18/16
|
||||
f 26/67/60 74/70/63 71/64/57
|
||||
f 74/157/63 10/93/62 80/95/74
|
||||
f 4/17/15 28/16/14 32/97/75
|
||||
f 10/69/62 53/98/76 28/16/14
|
||||
f 81/19/17 53/99/76 51/20/18
|
||||
f 10/69/62 40/68/61 53/98/76
|
||||
f 1/158/98 39/101/77 40/102/61
|
||||
f 82/22/20 39/101/77 52/23/21
|
||||
f 21/24/22 52/23/21 54/72/65
|
||||
f 52/23/21 9/103/78 83/25/23
|
||||
f 83/25/23 27/104/79 42/26/24
|
||||
f 6/8/8 35/7/7 49/53/28
|
||||
f 17/110/42 57/107/82 35/109/7
|
||||
f 84/108/81 57/107/82 55/28/26
|
||||
f 47/112/41 85/31/29 17/110/42
|
||||
f 5/159/91 48/111/83 47/112/41
|
||||
f 48/111/83 18/113/84 85/31/29
|
||||
f 22/33/31 56/32/30 58/74/67
|
||||
f 18/113/84 36/114/85 56/32/30
|
||||
f 86/34/32 36/114/85 38/35/12
|
||||
f 2/160/80 27/116/79 43/117/86
|
||||
f 27/116/79 9/118/78 87/37/34
|
||||
f 87/37/34 61/119/87 59/38/35
|
||||
f 39/121/77 88/40/37 9/118/78
|
||||
f 1/161/98 41/120/88 39/121/77
|
||||
f 88/40/37 41/120/88 60/41/38
|
||||
f 23/42/39 60/41/38 62/77/69
|
||||
f 60/41/38 11/122/89 89/123/40
|
||||
f 89/123/40 29/124/90 47/126/41
|
||||
f 3/2/2 30/1/1 45/127/92
|
||||
f 30/1/1 12/27/25 90/46/43
|
||||
f 90/162/43 65/51/48 63/129/44
|
||||
f 42/26/24 91/130/93 12/27/25
|
||||
f 2/105/80 43/131/86 42/26/24
|
||||
f 43/163/86 13/76/36 91/132/93
|
||||
f 24/50/47 64/49/46 66/133/71
|
||||
f 64/49/46 13/76/36 92/52/49
|
||||
f 92/52/49 31/9/9 49/53/28
|
||||
f 32/97/75 93/134/94 4/17/15
|
||||
f 14/21/19 69/135/54 32/137/75
|
||||
f 69/59/54 25/58/53 93/138/94
|
||||
f 14/21/19 44/3/3 69/135/54
|
||||
f 44/3/3 3/2/2 94/139/95
|
||||
f 45/164/92 15/82/45 94/140/95
|
||||
f 68/57/52 95/60/55 25/58/53
|
||||
f 15/82/45 33/12/10 68/57/52
|
||||
f 95/60/55 33/12/10 50/61/4
|
||||
f 8/15/13 36/141/85 34/87/72
|
||||
f 36/141/85 18/142/84 96/63/56
|
||||
f 96/63/56 73/143/96 71/64/57
|
||||
f 18/113/84 48/111/83 73/145/96
|
||||
f 48/165/83 5/125/91 97/146/58
|
||||
f 97/146/58 29/124/90 72/147/59
|
||||
f 26/67/60 72/66/59 74/70/63
|
||||
f 72/66/59 11/149/89 98/148/97
|
||||
f 98/148/97 41/150/88 40/68/61
|
||||
@ -0,0 +1,8 @@
|
||||
#version 330 core
|
||||
out vec4 FragColor;
|
||||
|
||||
in vec3 fColor;
|
||||
|
||||
void main(){
|
||||
FragColor = vec4(fColor, 1.0);
|
||||
}
|
||||
@ -0,0 +1,15 @@
|
||||
#version 330 core
|
||||
layout (location = 0) in vec2 aPos;
|
||||
layout (location = 1) in vec3 aColor;
|
||||
|
||||
out vec3 fColor;
|
||||
|
||||
uniform vec2 offsets[100];
|
||||
|
||||
void main()
|
||||
{
|
||||
// gl_InstanceID<49><44>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD>
|
||||
vec2 offset = offsets[gl_InstanceID];
|
||||
gl_Position = vec4(aPos + offset, 0.0, 1.0);
|
||||
fColor = aColor;
|
||||
}
|
||||
@ -0,0 +1,8 @@
|
||||
#version 330 core
|
||||
out vec4 FragColor;
|
||||
|
||||
in vec3 fColor;
|
||||
|
||||
void main(){
|
||||
FragColor = vec4(fColor, 1.0);
|
||||
}
|
||||
@ -0,0 +1,14 @@
|
||||
#version 330 core
|
||||
layout (location = 0) in vec2 aPos;
|
||||
layout (location = 1) in vec3 aColor;
|
||||
layout (location = 2) in vec2 aOffset;
|
||||
|
||||
out vec3 fColor;
|
||||
|
||||
void main()
|
||||
{
|
||||
// quad<61>Ĵ<EFBFBD>С<EFBFBD><EFBFBD><F0BDA5B1><EFBFBD>0.01<EFBFBD><EFBFBD>1
|
||||
vec2 pos = aPos * (gl_InstanceID / 100.0);
|
||||
gl_Position = vec4(pos + aOffset, 0.0, 1.0);
|
||||
fColor = aColor;
|
||||
}
|
||||
@ -0,0 +1,10 @@
|
||||
#version 330 core
|
||||
out vec4 FragColor;
|
||||
|
||||
in vec2 TexCoords;
|
||||
|
||||
uniform sampler2D texture_diffuse1;
|
||||
|
||||
void main(){
|
||||
FragColor = texture(texture_diffuse1, TexCoords);
|
||||
}
|
||||
@ -0,0 +1,15 @@
|
||||
#version 330 core
|
||||
layout (location = 0) in vec3 aPos;
|
||||
layout (location = 2) in vec2 aTexCoords;
|
||||
|
||||
out vec2 TexCoords;
|
||||
|
||||
uniform mat4 model;
|
||||
uniform mat4 view;
|
||||
uniform mat4 projection;
|
||||
|
||||
void main()
|
||||
{
|
||||
TexCoords = aTexCoords;
|
||||
gl_Position = projection * view * model * vec4(aPos, 1.0);
|
||||
}
|
||||
@ -0,0 +1,10 @@
|
||||
#version 330 core
|
||||
out vec4 FragColor;
|
||||
|
||||
in vec2 TexCoords;
|
||||
|
||||
uniform sampler2D texture_diffuse1;
|
||||
|
||||
void main(){
|
||||
FragColor = texture(texture_diffuse1, TexCoords);
|
||||
}
|
||||
@ -0,0 +1,15 @@
|
||||
#version 330 core
|
||||
layout (location = 0) in vec3 aPos;
|
||||
layout (location = 2) in vec2 aTexCoords;
|
||||
layout (location = 3) in mat4 instanceMatrix;
|
||||
|
||||
out vec2 TexCoords;
|
||||
|
||||
uniform mat4 view;
|
||||
uniform mat4 projection;
|
||||
|
||||
void main()
|
||||
{
|
||||
TexCoords = aTexCoords;
|
||||
gl_Position = projection * view * instanceMatrix* vec4(aPos, 1.0);
|
||||
}
|
||||
BIN
LearnOpenGL/assest/textures/planet.rar
Normal file
BIN
LearnOpenGL/assest/textures/planet.rar
Normal file
Binary file not shown.
BIN
LearnOpenGL/assest/textures/rock.rar
Normal file
BIN
LearnOpenGL/assest/textures/rock.rar
Normal file
Binary file not shown.
@ -17,7 +17,8 @@ enum Camera_Movement {
|
||||
// Default camera values
|
||||
const float YAW = -90.0f;
|
||||
const float PITCH = 0.0f;
|
||||
const float SPEED = 2.5f;
|
||||
//const float SPEED = 2.5f;
|
||||
const float SPEED = 20.5f;
|
||||
const float SENSITIVITY = 0.1f;
|
||||
const float ZOOM = 45.0f;
|
||||
|
||||
|
||||
@ -121,6 +121,16 @@ public:
|
||||
glUniform1f(glGetUniformLocation(ID, name.c_str()), value);
|
||||
}
|
||||
// ------------------------------------------------------------------------
|
||||
void setVec2(const std::string& name, float x, float y) const
|
||||
{
|
||||
glUniform2f(glGetUniformLocation(ID, name.c_str()), x, y);
|
||||
}
|
||||
// ------------------------------------------------------------------------
|
||||
void setVec2(const std::string& name, glm::vec2& vec) const
|
||||
{
|
||||
glUniform2f(glGetUniformLocation(ID, name.c_str()), vec.x, vec.y);
|
||||
}
|
||||
// ------------------------------------------------------------------------
|
||||
void setVec3(const std::string& name, float x, float y, float z) const
|
||||
{
|
||||
glUniform3f(glGetUniformLocation(ID, name.c_str()), x, y, z);
|
||||
|
||||
@ -99,11 +99,16 @@ int main()
|
||||
|
||||
// set up vertex data (and buffer(s)) and configure vertex attributes
|
||||
// ------------------------------------------------------------------
|
||||
//float vertices[] = {
|
||||
//-0.5f, -0.5f, 0.0f, // left
|
||||
// 0.5f, -0.5f, 0.0f, // right
|
||||
// 0.0f, 0.5f, 0.0f // top
|
||||
//};
|
||||
float vertices[] = {
|
||||
0.5f, 0.5f, 0.0f, // top right
|
||||
0.5f, -0.5f, 0.0f, // bottom right
|
||||
-0.5f, -0.5f, 0.0f, // bottom left
|
||||
-0.5f, 0.5f, 0.0f // top left
|
||||
0.5f, 0.5f, 0.0f, // top right
|
||||
0.5f, -0.5f, 0.0f, // bottom right
|
||||
-0.5f, -0.5f, 0.0f, // bottom left
|
||||
-0.5f, 0.5f, 0.0f // top left
|
||||
};
|
||||
unsigned int indices[] = { // note that we start from 0!
|
||||
0, 1, 3, // first Triangle
|
||||
@ -157,7 +162,7 @@ int main()
|
||||
glBindVertexArray(VAO); // seeing as we only have a single VAO there's no need to bind it every time, but we'll do so to keep things a bit more organized
|
||||
//glDrawArrays(GL_TRIANGLES, 0, 6);
|
||||
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
|
||||
// glBindVertexArray(0); // no need to unbind it every time
|
||||
//glBindVertexArray(0); // no need to unbind it every time
|
||||
|
||||
// glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)
|
||||
// -------------------------------------------------------------------------------
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
#include <glad/glad.h>
|
||||
#include <GLFW/glfw3.h>
|
||||
|
||||
#include "Shader/Shader.h"
|
||||
#include "Core/Shader/Shader.h"
|
||||
|
||||
#include <iostream>
|
||||
|
||||
|
||||
256
LearnOpenGL/src/Main/4高级OpenGL/4.10.1渲染大量物体-quad-实例化.cpp
Normal file
256
LearnOpenGL/src/Main/4高级OpenGL/4.10.1渲染大量物体-quad-实例化.cpp
Normal file
@ -0,0 +1,256 @@
|
||||
#include <glad/glad.h>
|
||||
#include <GLFW/glfw3.h>
|
||||
#include <stb_image.h>
|
||||
|
||||
#include <glm/glm.hpp>
|
||||
#include <glm/gtc/matrix_transform.hpp>
|
||||
#include <glm/gtc/type_ptr.hpp>
|
||||
|
||||
#include "Core/Shader/Shader.h"
|
||||
#include "Core/Camera/Camera.h"
|
||||
#include "Core/LoadModel/Model.h"
|
||||
|
||||
#include <iostream>
|
||||
#include "MyFileSystem.h"
|
||||
|
||||
void framebuffer_size_callback(GLFWwindow* window, int width, int height);
|
||||
void mouse_callback(GLFWwindow* window, double xpos, double ypos);
|
||||
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset);
|
||||
void processInput(GLFWwindow* window);
|
||||
unsigned int loadTexture(const char* path);
|
||||
|
||||
// settings
|
||||
const unsigned int SCR_WIDTH = 1280;
|
||||
const unsigned int SCR_HEIGHT = 720;
|
||||
|
||||
// camera
|
||||
Camera camera(glm::vec3(0.0f, 0.0f, 3.0f));
|
||||
float lastX = (float)SCR_WIDTH / 2.0;
|
||||
float lastY = (float)SCR_HEIGHT / 2.0;
|
||||
bool firstMouse = true;
|
||||
|
||||
// timing
|
||||
float deltaTime = 0.0f;
|
||||
float lastFrame = 0.0f;
|
||||
|
||||
int main()
|
||||
{
|
||||
// glfw: initialize and configure
|
||||
// ------------------------------
|
||||
glfwInit();
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
|
||||
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
|
||||
|
||||
#ifdef __APPLE__
|
||||
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
|
||||
#endif
|
||||
|
||||
// glfw window creation
|
||||
// --------------------
|
||||
GLFWwindow* window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "LearnOpenGL", NULL, NULL);
|
||||
if (window == NULL)
|
||||
{
|
||||
std::cout << "Failed to create GLFW window" << std::endl;
|
||||
glfwTerminate();
|
||||
return -1;
|
||||
}
|
||||
glfwMakeContextCurrent(window);
|
||||
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
|
||||
glfwSetCursorPosCallback(window, mouse_callback);
|
||||
glfwSetScrollCallback(window, scroll_callback);
|
||||
|
||||
// tell GLFW to capture our mouse
|
||||
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
|
||||
|
||||
// glad: load all OpenGL function pointers
|
||||
// ---------------------------------------
|
||||
if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
|
||||
{
|
||||
std::cout << "Failed to initialize GLAD" << std::endl;
|
||||
return -1;
|
||||
}
|
||||
|
||||
// configure global opengl state
|
||||
// -----------------------------
|
||||
glEnable(GL_DEPTH_TEST);
|
||||
|
||||
// build and compile shaders
|
||||
// -------------------------
|
||||
Shader shader("assest/shader/4<><EFBFBD>OpenGL/6.10.1.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-quad-ʵ<><CAB5><EFBFBD><EFBFBD>.vs", "assest/shader/4<><EFBFBD>OpenGL/6.10.1.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-quad-ʵ<><CAB5><EFBFBD><EFBFBD>.fs");
|
||||
float quadVertices[] = {
|
||||
// λ<><CEBB> // <20><>ɫ
|
||||
-0.05f, 0.05f, 1.0f, 0.0f, 0.0f,
|
||||
0.05f, -0.05f, 0.0f, 1.0f, 0.0f,
|
||||
-0.05f, -0.05f, 0.0f, 0.0f, 1.0f,
|
||||
|
||||
-0.05f, 0.05f, 1.0f, 0.0f, 0.0f,
|
||||
0.05f, -0.05f, 0.0f, 1.0f, 0.0f,
|
||||
0.05f, 0.05f, 0.0f, 1.0f, 1.0f
|
||||
};
|
||||
// quad VAO
|
||||
unsigned int quadVAO, quadVBO;
|
||||
glGenVertexArrays(1, &quadVAO);
|
||||
glGenBuffers(1, &quadVBO);
|
||||
glBindVertexArray(quadVAO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, quadVBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(quadVertices), &quadVertices, GL_STATIC_DRAW);
|
||||
glEnableVertexAttribArray(0);
|
||||
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)0);
|
||||
glEnableVertexAttribArray(1);
|
||||
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)(2 * sizeof(float)));
|
||||
|
||||
// <20><><EFBFBD><EFBFBD>ƫ<EFBFBD><C6AB>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
glm::vec2 translations[100];
|
||||
int index = 0;
|
||||
float offset = 0.1f;
|
||||
for (int y = -10; y < 10; y += 2)
|
||||
{
|
||||
for (int x = -10; x < 10; x += 2)
|
||||
{
|
||||
glm::vec2 translation;
|
||||
translation.x = (float)x / 10.0f + offset;
|
||||
translation.y = (float)y / 10.0f + offset;
|
||||
translations[index++] = translation;
|
||||
}
|
||||
}
|
||||
// <20>ϴ<EFBFBD>λ<EFBFBD>ø<EFBFBD>glsl<73><6C>ֻ<EFBFBD><D6BB>һ<EFBFBD><D2BB>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>
|
||||
shader.use();
|
||||
for (unsigned int i = 0; i < 100; i++)
|
||||
{
|
||||
shader.setVec2(("offsets[" + to_string(i) + "]").c_str(), translations[i]);
|
||||
}
|
||||
// render loop
|
||||
// -----------
|
||||
while (!glfwWindowShouldClose(window))
|
||||
{
|
||||
// per-frame time logic
|
||||
// --------------------
|
||||
float currentFrame = static_cast<float>(glfwGetTime());
|
||||
deltaTime = currentFrame - lastFrame;
|
||||
lastFrame = currentFrame;
|
||||
|
||||
// input
|
||||
// -----
|
||||
processInput(window);
|
||||
|
||||
// render
|
||||
// ------
|
||||
glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
|
||||
// quad
|
||||
glBindVertexArray(quadVAO);
|
||||
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>Է<EFBFBD><D4B7><EFBFBD>GPU<50><55>Ȼ<EFBFBD><C8BB>ʹ<EFBFBD><CAB9>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ƺ<EFBFBD><C6BA><EFBFBD><EFBFBD><EFBFBD>OpenGL<47><4C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><D0A9><EFBFBD>ݻ<EFBFBD><DDBB>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
// ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>Ƶ<EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
glDrawArraysInstanced(GL_TRIANGLES, 0, 6, 100);
|
||||
|
||||
// glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)
|
||||
// -------------------------------------------------------------------------------
|
||||
glfwSwapBuffers(window);
|
||||
glfwPollEvents();
|
||||
}
|
||||
|
||||
// optional: de-allocate all resources once they've outlived their purpose:
|
||||
// ------------------------------------------------------------------------
|
||||
glDeleteVertexArrays(1, &quadVAO);
|
||||
glDeleteBuffers(1, &quadVBO);
|
||||
|
||||
glfwTerminate();
|
||||
return 0;
|
||||
}
|
||||
|
||||
// process all input: query GLFW whether relevant keys are pressed/released this frame and react accordingly
|
||||
// ---------------------------------------------------------------------------------------------------------
|
||||
void processInput(GLFWwindow* window)
|
||||
{
|
||||
if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
|
||||
glfwSetWindowShouldClose(window, true);
|
||||
|
||||
if (glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(FORWARD, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(BACKWARD, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(LEFT, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(RIGHT, deltaTime);
|
||||
}
|
||||
|
||||
// glfw: whenever the window size changed (by OS or user resize) this callback function executes
|
||||
// ---------------------------------------------------------------------------------------------
|
||||
void framebuffer_size_callback(GLFWwindow* window, int width, int height)
|
||||
{
|
||||
// make sure the viewport matches the new window dimensions; note that width and
|
||||
// height will be significantly larger than specified on retina displays.
|
||||
glViewport(0, 0, width, height);
|
||||
}
|
||||
|
||||
// glfw: whenever the mouse moves, this callback is called
|
||||
// -------------------------------------------------------
|
||||
void mouse_callback(GLFWwindow* window, double xposIn, double yposIn)
|
||||
{
|
||||
float xpos = static_cast<float>(xposIn);
|
||||
float ypos = static_cast<float>(yposIn);
|
||||
|
||||
if (firstMouse)
|
||||
{
|
||||
lastX = xpos;
|
||||
lastY = ypos;
|
||||
firstMouse = false;
|
||||
}
|
||||
|
||||
float xoffset = xpos - lastX;
|
||||
float yoffset = lastY - ypos; // reversed since y-coordinates go from bottom to top
|
||||
|
||||
lastX = xpos;
|
||||
lastY = ypos;
|
||||
|
||||
camera.ProcessMouseMovement(xoffset, yoffset);
|
||||
}
|
||||
|
||||
// glfw: whenever the mouse scroll wheel scrolls, this callback is called
|
||||
// ----------------------------------------------------------------------
|
||||
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset)
|
||||
{
|
||||
camera.ProcessMouseScroll(static_cast<float>(yoffset));
|
||||
}
|
||||
|
||||
// utility function for loading a 2D texture from file
|
||||
// ---------------------------------------------------
|
||||
unsigned int loadTexture(char const* path)
|
||||
{
|
||||
unsigned int textureID;
|
||||
glGenTextures(1, &textureID);
|
||||
|
||||
int width, height, nrComponents;
|
||||
unsigned char* data = stbi_load(path, &width, &height, &nrComponents, 0);
|
||||
if (data)
|
||||
{
|
||||
GLenum format;
|
||||
if (nrComponents == 1)
|
||||
format = GL_RED;
|
||||
else if (nrComponents == 3)
|
||||
format = GL_RGB;
|
||||
else if (nrComponents == 4)
|
||||
format = GL_RGBA;
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, textureID);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, data);
|
||||
glGenerateMipmap(GL_TEXTURE_2D);
|
||||
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
|
||||
stbi_image_free(data);
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cout << "Texture failed to load at path: " << path << std::endl;
|
||||
stbi_image_free(data);
|
||||
}
|
||||
|
||||
return textureID;
|
||||
}
|
||||
276
LearnOpenGL/src/Main/4高级OpenGL/4.10.2渲染大量物体-quad-实例化数组.cpp
Normal file
276
LearnOpenGL/src/Main/4高级OpenGL/4.10.2渲染大量物体-quad-实例化数组.cpp
Normal file
@ -0,0 +1,276 @@
|
||||
#include <glad/glad.h>
|
||||
#include <GLFW/glfw3.h>
|
||||
#include <stb_image.h>
|
||||
|
||||
#include <glm/glm.hpp>
|
||||
#include <glm/gtc/matrix_transform.hpp>
|
||||
#include <glm/gtc/type_ptr.hpp>
|
||||
|
||||
#include "Core/Shader/Shader.h"
|
||||
#include "Core/Camera/Camera.h"
|
||||
#include "Core/LoadModel/Model.h"
|
||||
|
||||
#include <iostream>
|
||||
#include "MyFileSystem.h"
|
||||
|
||||
void framebuffer_size_callback(GLFWwindow* window, int width, int height);
|
||||
void mouse_callback(GLFWwindow* window, double xpos, double ypos);
|
||||
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset);
|
||||
void processInput(GLFWwindow* window);
|
||||
unsigned int loadTexture(const char* path);
|
||||
|
||||
// settings
|
||||
const unsigned int SCR_WIDTH = 1280;
|
||||
const unsigned int SCR_HEIGHT = 720;
|
||||
|
||||
// camera
|
||||
Camera camera(glm::vec3(0.0f, 0.0f, 3.0f));
|
||||
float lastX = (float)SCR_WIDTH / 2.0;
|
||||
float lastY = (float)SCR_HEIGHT / 2.0;
|
||||
bool firstMouse = true;
|
||||
|
||||
// timing
|
||||
float deltaTime = 0.0f;
|
||||
float lastFrame = 0.0f;
|
||||
|
||||
int main()
|
||||
{
|
||||
// glfw: initialize and configure
|
||||
// ------------------------------
|
||||
glfwInit();
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
|
||||
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
|
||||
|
||||
#ifdef __APPLE__
|
||||
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
|
||||
#endif
|
||||
|
||||
// glfw window creation
|
||||
// --------------------
|
||||
GLFWwindow* window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "LearnOpenGL", NULL, NULL);
|
||||
if (window == NULL)
|
||||
{
|
||||
std::cout << "Failed to create GLFW window" << std::endl;
|
||||
glfwTerminate();
|
||||
return -1;
|
||||
}
|
||||
glfwMakeContextCurrent(window);
|
||||
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
|
||||
glfwSetCursorPosCallback(window, mouse_callback);
|
||||
glfwSetScrollCallback(window, scroll_callback);
|
||||
|
||||
// tell GLFW to capture our mouse
|
||||
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
|
||||
|
||||
// glad: load all OpenGL function pointers
|
||||
// ---------------------------------------
|
||||
if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
|
||||
{
|
||||
std::cout << "Failed to initialize GLAD" << std::endl;
|
||||
return -1;
|
||||
}
|
||||
|
||||
// configure global opengl state
|
||||
// -----------------------------
|
||||
glEnable(GL_DEPTH_TEST);
|
||||
|
||||
// build and compile shaders
|
||||
// -------------------------
|
||||
Shader shader("assest/shader/4<><EFBFBD>OpenGL/6.10.2.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-quad-ʵ<><CAB5><EFBFBD><EFBFBD>.vs", "assest/shader/4<><EFBFBD>OpenGL/6.10.2.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-quad-ʵ<><CAB5><EFBFBD><EFBFBD>.fs");
|
||||
|
||||
// set up vertex data (and buffer(s)) and configure vertex attributes
|
||||
// ------------------------------------------------------------------
|
||||
// uniform<72><6D><EFBFBD>飬ƫ<E9A3AC><C6AB>λ<EFBFBD><CEBB>
|
||||
glm::vec2 translations[100];
|
||||
int index = 0;
|
||||
float offset = 0.1f;
|
||||
for (int y = -10; y < 10; y += 2) {
|
||||
for (int x = -10; x < 10; x += 2) {
|
||||
glm::vec2 translation;
|
||||
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> -1<><31>1֮<31><D6AE>
|
||||
translation.x = (float)x / 10.0f + offset;
|
||||
translation.y = (float)y / 10.0f + offset;
|
||||
translations[index++] = translation;
|
||||
}
|
||||
}
|
||||
// <20>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>黺<EFBFBD><E9BBBA><EFBFBD>洢
|
||||
unsigned int instanceVBO;
|
||||
glGenBuffers(1, &instanceVBO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, instanceVBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(glm::vec2) * 100, &translations[0], GL_STATIC_DRAW);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, 0);
|
||||
|
||||
float quadVertices[] = {
|
||||
// λ<><CEBB> // <20><>ɫ
|
||||
-0.05f, 0.05f, 1.0f, 0.0f, 0.0f,
|
||||
0.05f, -0.05f, 0.0f, 1.0f, 0.0f,
|
||||
-0.05f, -0.05f, 0.0f, 0.0f, 1.0f,
|
||||
|
||||
-0.05f, 0.05f, 1.0f, 0.0f, 0.0f,
|
||||
0.05f, -0.05f, 0.0f, 1.0f, 0.0f,
|
||||
0.05f, 0.05f, 0.0f, 1.0f, 1.0f
|
||||
};
|
||||
|
||||
// quad VAO
|
||||
unsigned int quadVAO, quadVBO;
|
||||
glGenVertexArrays(1, &quadVAO);
|
||||
glGenBuffers(1, &quadVBO);
|
||||
glBindVertexArray(quadVAO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, quadVBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(quadVertices), &quadVertices, GL_STATIC_DRAW);
|
||||
glEnableVertexAttribArray(0);
|
||||
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)0);
|
||||
glEnableVertexAttribArray(1);
|
||||
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)(2 * sizeof(float)));
|
||||
|
||||
// <20><><EFBFBD><EFBFBD>layout=2<><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
glEnableVertexAttribArray(2);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, instanceVBO);
|
||||
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float), (void*)0);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, 0);
|
||||
// <20><><EFBFBD><EFBFBD>layout=2<><32><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>ÿ2<C3BF><32>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
glVertexAttribDivisor(2, 1);
|
||||
|
||||
// <20><><EFBFBD><EFBFBD>
|
||||
glBindVertexArray(0);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, 0);
|
||||
|
||||
// <20>ǵð<C7B5><C3B0><EFBFBD>shader<65><72><EFBFBD><EFBFBD>ʹû<CAB9><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϴ<EFBFBD><CFB4><EFBFBD>uniform
|
||||
shader.use();
|
||||
|
||||
// render loop
|
||||
// -----------
|
||||
while (!glfwWindowShouldClose(window))
|
||||
{
|
||||
// per-frame time logic
|
||||
// --------------------
|
||||
float currentFrame = static_cast<float>(glfwGetTime());
|
||||
deltaTime = currentFrame - lastFrame;
|
||||
lastFrame = currentFrame;
|
||||
|
||||
// input
|
||||
// -----
|
||||
processInput(window);
|
||||
|
||||
// render
|
||||
// ------
|
||||
glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
|
||||
// quad
|
||||
glBindVertexArray(quadVAO);
|
||||
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>Է<EFBFBD><D4B7><EFBFBD>GPU<50><55>Ȼ<EFBFBD><C8BB>ʹ<EFBFBD><CAB9>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ƺ<EFBFBD><C6BA><EFBFBD><EFBFBD><EFBFBD>OpenGL<47><4C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><D0A9><EFBFBD>ݻ<EFBFBD><DDBB>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
// ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>Ƶ<EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
glDrawArraysInstanced(GL_TRIANGLES, 0, 6, 100);
|
||||
glBindVertexArray(0);
|
||||
|
||||
// glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)
|
||||
// -------------------------------------------------------------------------------
|
||||
glfwSwapBuffers(window);
|
||||
glfwPollEvents();
|
||||
}
|
||||
|
||||
// optional: de-allocate all resources once they've outlived their purpose:
|
||||
// ------------------------------------------------------------------------
|
||||
glDeleteVertexArrays(1, &quadVAO);
|
||||
glDeleteBuffers(1, &quadVBO);
|
||||
|
||||
glfwTerminate();
|
||||
return 0;
|
||||
}
|
||||
|
||||
// process all input: query GLFW whether relevant keys are pressed/released this frame and react accordingly
|
||||
// ---------------------------------------------------------------------------------------------------------
|
||||
void processInput(GLFWwindow* window)
|
||||
{
|
||||
if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
|
||||
glfwSetWindowShouldClose(window, true);
|
||||
|
||||
if (glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(FORWARD, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(BACKWARD, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(LEFT, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(RIGHT, deltaTime);
|
||||
}
|
||||
|
||||
// glfw: whenever the window size changed (by OS or user resize) this callback function executes
|
||||
// ---------------------------------------------------------------------------------------------
|
||||
void framebuffer_size_callback(GLFWwindow* window, int width, int height)
|
||||
{
|
||||
// make sure the viewport matches the new window dimensions; note that width and
|
||||
// height will be significantly larger than specified on retina displays.
|
||||
glViewport(0, 0, width, height);
|
||||
}
|
||||
|
||||
// glfw: whenever the mouse moves, this callback is called
|
||||
// -------------------------------------------------------
|
||||
void mouse_callback(GLFWwindow* window, double xposIn, double yposIn)
|
||||
{
|
||||
float xpos = static_cast<float>(xposIn);
|
||||
float ypos = static_cast<float>(yposIn);
|
||||
|
||||
if (firstMouse)
|
||||
{
|
||||
lastX = xpos;
|
||||
lastY = ypos;
|
||||
firstMouse = false;
|
||||
}
|
||||
|
||||
float xoffset = xpos - lastX;
|
||||
float yoffset = lastY - ypos; // reversed since y-coordinates go from bottom to top
|
||||
|
||||
lastX = xpos;
|
||||
lastY = ypos;
|
||||
|
||||
camera.ProcessMouseMovement(xoffset, yoffset);
|
||||
}
|
||||
|
||||
// glfw: whenever the mouse scroll wheel scrolls, this callback is called
|
||||
// ----------------------------------------------------------------------
|
||||
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset)
|
||||
{
|
||||
camera.ProcessMouseScroll(static_cast<float>(yoffset));
|
||||
}
|
||||
|
||||
// utility function for loading a 2D texture from file
|
||||
// ---------------------------------------------------
|
||||
unsigned int loadTexture(char const* path)
|
||||
{
|
||||
unsigned int textureID;
|
||||
glGenTextures(1, &textureID);
|
||||
|
||||
int width, height, nrComponents;
|
||||
unsigned char* data = stbi_load(path, &width, &height, &nrComponents, 0);
|
||||
if (data)
|
||||
{
|
||||
GLenum format;
|
||||
if (nrComponents == 1)
|
||||
format = GL_RED;
|
||||
else if (nrComponents == 3)
|
||||
format = GL_RGB;
|
||||
else if (nrComponents == 4)
|
||||
format = GL_RGBA;
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, textureID);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, data);
|
||||
glGenerateMipmap(GL_TEXTURE_2D);
|
||||
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
|
||||
stbi_image_free(data);
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cout << "Texture failed to load at path: " << path << std::endl;
|
||||
stbi_image_free(data);
|
||||
}
|
||||
|
||||
return textureID;
|
||||
}
|
||||
268
LearnOpenGL/src/Main/4高级OpenGL/4.10.3渲染大量物体-行星带-无实例化.cpp
Normal file
268
LearnOpenGL/src/Main/4高级OpenGL/4.10.3渲染大量物体-行星带-无实例化.cpp
Normal file
@ -0,0 +1,268 @@
|
||||
#include <glad/glad.h>
|
||||
#include <GLFW/glfw3.h>
|
||||
#include <stb_image.h>
|
||||
|
||||
#include <glm/glm.hpp>
|
||||
#include <glm/gtc/matrix_transform.hpp>
|
||||
#include <glm/gtc/type_ptr.hpp>
|
||||
|
||||
#include "Core/Shader/Shader.h"
|
||||
#include "Core/Camera/Camera.h"
|
||||
#include "Core/LoadModel/Model.h"
|
||||
|
||||
#include <iostream>
|
||||
#include "MyFileSystem.h"
|
||||
|
||||
void framebuffer_size_callback(GLFWwindow* window, int width, int height);
|
||||
void mouse_callback(GLFWwindow* window, double xpos, double ypos);
|
||||
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset);
|
||||
void processInput(GLFWwindow* window);
|
||||
unsigned int loadTexture(const char* path);
|
||||
|
||||
// settings
|
||||
const unsigned int SCR_WIDTH = 1280;
|
||||
const unsigned int SCR_HEIGHT = 720;
|
||||
|
||||
// camera
|
||||
Camera camera(glm::vec3(0.0f, 0.0f, 3.0f));
|
||||
float lastX = (float)SCR_WIDTH / 2.0;
|
||||
float lastY = (float)SCR_HEIGHT / 2.0;
|
||||
bool firstMouse = true;
|
||||
|
||||
// timing
|
||||
float deltaTime = 0.0f;
|
||||
float lastFrame = 0.0f;
|
||||
|
||||
int main()
|
||||
{
|
||||
// glfw: initialize and configure
|
||||
// ------------------------------
|
||||
glfwInit();
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
|
||||
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
|
||||
|
||||
#ifdef __APPLE__
|
||||
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
|
||||
#endif
|
||||
|
||||
// glfw window creation
|
||||
// --------------------
|
||||
GLFWwindow* window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "LearnOpenGL", NULL, NULL);
|
||||
if (window == NULL)
|
||||
{
|
||||
std::cout << "Failed to create GLFW window" << std::endl;
|
||||
glfwTerminate();
|
||||
return -1;
|
||||
}
|
||||
glfwMakeContextCurrent(window);
|
||||
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
|
||||
glfwSetCursorPosCallback(window, mouse_callback);
|
||||
glfwSetScrollCallback(window, scroll_callback);
|
||||
|
||||
// tell GLFW to capture our mouse
|
||||
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
|
||||
|
||||
// glad: load all OpenGL function pointers
|
||||
// ---------------------------------------
|
||||
if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
|
||||
{
|
||||
std::cout << "Failed to initialize GLAD" << std::endl;
|
||||
return -1;
|
||||
}
|
||||
|
||||
// configure global opengl state
|
||||
// -----------------------------
|
||||
glEnable(GL_DEPTH_TEST);
|
||||
|
||||
// build and compile shaders
|
||||
// -------------------------
|
||||
Shader shader("assest/shader/4<><EFBFBD>OpenGL/6.10.3.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD>Ǵ<EFBFBD>-<2D><>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>.vs", "assest/shader/4<><EFBFBD>OpenGL/6.10.3.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD>Ǵ<EFBFBD>-<2D><>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>.fs");
|
||||
|
||||
// set up vertex data (and buffer(s)) and configure vertex attributes
|
||||
// ------------------------------------------------------------------
|
||||
// <20><><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>
|
||||
Model rock(FileSystem::getPath("assest/model/rock/rock.obj"));
|
||||
Model planet(FileSystem::getPath("assest/model/planet/planet.obj"));
|
||||
|
||||
// model<65><6C><EFBFBD>飬ʯͷ<CAAF><CDB7>ƫ<EFBFBD><C6AB>λ<EFBFBD><CEBB>
|
||||
unsigned int amount = 1000;
|
||||
glm::mat4* modelMatrices;
|
||||
modelMatrices = new glm::mat4[amount];
|
||||
srand(glfwGetTime());// <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
float radius = 50.0f;
|
||||
float offset = 2.5f;
|
||||
for (unsigned int i = 0; i < amount; i++) {
|
||||
glm::mat4 model = glm::mat4(1.0f);
|
||||
// <20>Ƕȣ<C7B6>0-360<36><30>
|
||||
float angle = (float)i / (float)amount * 360.0f;
|
||||
// 1. λ<>ƣ<EFBFBD><C6A3>ֲ<EFBFBD><D6B2>ڰ뾶Ϊ radius <20><>Բ<EFBFBD><D4B2><EFBFBD>ϣ<EFBFBD>ƫ<EFBFBD>Ʒ<EFBFBD>Χ<EFBFBD><CEA7>[-0ffset, offset]
|
||||
// rand()<29><>ΧΪ0~RAND_MAX, 700 % 500 = 200 / 100 = 2 - 2.5 = -0.5
|
||||
float displacement = (rand() % (int)(2 * offset * 100)) / 100.0f - offset;
|
||||
float x = sin(angle) * radius + displacement;
|
||||
|
||||
displacement = (rand() % (int)(2 * offset * 100)) / 100.0f - offset;
|
||||
float y = displacement * 0.4f;
|
||||
|
||||
displacement = (rand() % (int)(2 * offset * 100)) / 100.0f - offset;
|
||||
float z = cos(angle) * radius + displacement;
|
||||
model = glm::translate(model, glm::vec3(x, y, z));
|
||||
|
||||
// 2.<2E><><EFBFBD>ţ<EFBFBD><C5A3><EFBFBD>0.05<EFBFBD><EFBFBD>0.25f֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
float scale = (rand() % 20) / 100.0f + 0.05;
|
||||
model = glm::scale(model, glm::vec3(scale));
|
||||
|
||||
// 3.<2E><>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>(<28><>)<29><><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת
|
||||
float rotAngle = (rand() % 360);
|
||||
model = glm::rotate(model, rotAngle, glm::vec3(0.4f, 0.6f, 0.8f));
|
||||
|
||||
// 4. <20><><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
modelMatrices[i] = model;
|
||||
}
|
||||
// render loop
|
||||
// -----------
|
||||
while (!glfwWindowShouldClose(window))
|
||||
{
|
||||
// per-frame time logic
|
||||
// --------------------
|
||||
float currentFrame = static_cast<float>(glfwGetTime());
|
||||
deltaTime = currentFrame - lastFrame;
|
||||
lastFrame = currentFrame;
|
||||
|
||||
// input
|
||||
// -----
|
||||
processInput(window);
|
||||
|
||||
// render
|
||||
// ------
|
||||
glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
|
||||
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
glm::mat4 projection = glm::perspective(glm::radians(45.0f), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 1000.0f);
|
||||
glm::mat4 view = camera.GetViewMatrix();
|
||||
shader.use();
|
||||
shader.setMat4("projection", projection);
|
||||
shader.setMat4("view", view);
|
||||
|
||||
// <20>滭<EFBFBD><E6BBAD><EFBFBD><EFBFBD>
|
||||
glm::mat4 model = glm::mat4(1.0f);
|
||||
model = glm::translate(model, glm::vec3(0.0f, -3.0f, 0.0f));
|
||||
model = glm::scale(model, glm::vec3(4.0f, 4.0f, 4.0f));
|
||||
shader.setMat4("model", model);
|
||||
planet.Draw(shader);
|
||||
|
||||
// <20>滭ʯͷ
|
||||
for (unsigned int i = 0; i < amount; i++) {
|
||||
// <20><><EFBFBD><EFBFBD>ƫ<EFBFBD><C6AB>
|
||||
shader.setMat4("model", modelMatrices[i]);
|
||||
rock.Draw(shader);
|
||||
}
|
||||
|
||||
// glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)
|
||||
// -------------------------------------------------------------------------------
|
||||
glfwSwapBuffers(window);
|
||||
glfwPollEvents();
|
||||
}
|
||||
|
||||
// optional: de-allocate all resources once they've outlived their purpose:
|
||||
// ------------------------------------------------------------------------
|
||||
|
||||
glfwTerminate();
|
||||
return 0;
|
||||
}
|
||||
|
||||
// process all input: query GLFW whether relevant keys are pressed/released this frame and react accordingly
|
||||
// ---------------------------------------------------------------------------------------------------------
|
||||
void processInput(GLFWwindow* window)
|
||||
{
|
||||
if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
|
||||
glfwSetWindowShouldClose(window, true);
|
||||
|
||||
if (glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(FORWARD, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(BACKWARD, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(LEFT, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(RIGHT, deltaTime);
|
||||
}
|
||||
|
||||
// glfw: whenever the window size changed (by OS or user resize) this callback function executes
|
||||
// ---------------------------------------------------------------------------------------------
|
||||
void framebuffer_size_callback(GLFWwindow* window, int width, int height)
|
||||
{
|
||||
// make sure the viewport matches the new window dimensions; note that width and
|
||||
// height will be significantly larger than specified on retina displays.
|
||||
glViewport(0, 0, width, height);
|
||||
}
|
||||
|
||||
// glfw: whenever the mouse moves, this callback is called
|
||||
// -------------------------------------------------------
|
||||
void mouse_callback(GLFWwindow* window, double xposIn, double yposIn)
|
||||
{
|
||||
float xpos = static_cast<float>(xposIn);
|
||||
float ypos = static_cast<float>(yposIn);
|
||||
|
||||
if (firstMouse)
|
||||
{
|
||||
lastX = xpos;
|
||||
lastY = ypos;
|
||||
firstMouse = false;
|
||||
}
|
||||
|
||||
float xoffset = xpos - lastX;
|
||||
float yoffset = lastY - ypos; // reversed since y-coordinates go from bottom to top
|
||||
|
||||
lastX = xpos;
|
||||
lastY = ypos;
|
||||
|
||||
camera.ProcessMouseMovement(xoffset, yoffset);
|
||||
}
|
||||
|
||||
// glfw: whenever the mouse scroll wheel scrolls, this callback is called
|
||||
// ----------------------------------------------------------------------
|
||||
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset)
|
||||
{
|
||||
camera.ProcessMouseScroll(static_cast<float>(yoffset));
|
||||
}
|
||||
|
||||
// utility function for loading a 2D texture from file
|
||||
// ---------------------------------------------------
|
||||
unsigned int loadTexture(char const* path)
|
||||
{
|
||||
unsigned int textureID;
|
||||
glGenTextures(1, &textureID);
|
||||
|
||||
int width, height, nrComponents;
|
||||
unsigned char* data = stbi_load(path, &width, &height, &nrComponents, 0);
|
||||
if (data)
|
||||
{
|
||||
GLenum format;
|
||||
if (nrComponents == 1)
|
||||
format = GL_RED;
|
||||
else if (nrComponents == 3)
|
||||
format = GL_RGB;
|
||||
else if (nrComponents == 4)
|
||||
format = GL_RGBA;
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, textureID);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, data);
|
||||
glGenerateMipmap(GL_TEXTURE_2D);
|
||||
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
|
||||
stbi_image_free(data);
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cout << "Texture failed to load at path: " << path << std::endl;
|
||||
stbi_image_free(data);
|
||||
}
|
||||
|
||||
return textureID;
|
||||
}
|
||||
304
LearnOpenGL/src/Main/4高级OpenGL/4.10.4渲染大量物体-行星带-实例化数组.cpp
Normal file
304
LearnOpenGL/src/Main/4高级OpenGL/4.10.4渲染大量物体-行星带-实例化数组.cpp
Normal file
@ -0,0 +1,304 @@
|
||||
#include <glad/glad.h>
|
||||
#include <GLFW/glfw3.h>
|
||||
#include <stb_image.h>
|
||||
|
||||
#include <glm/glm.hpp>
|
||||
#include <glm/gtc/matrix_transform.hpp>
|
||||
#include <glm/gtc/type_ptr.hpp>
|
||||
|
||||
#include "Core/Shader/Shader.h"
|
||||
#include "Core/Camera/Camera.h"
|
||||
#include "Core/LoadModel/Model.h"
|
||||
|
||||
#include <iostream>
|
||||
#include "MyFileSystem.h"
|
||||
|
||||
void framebuffer_size_callback(GLFWwindow* window, int width, int height);
|
||||
void mouse_callback(GLFWwindow* window, double xpos, double ypos);
|
||||
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset);
|
||||
void processInput(GLFWwindow* window);
|
||||
unsigned int loadTexture(const char* path);
|
||||
|
||||
// settings
|
||||
const unsigned int SCR_WIDTH = 1280;
|
||||
const unsigned int SCR_HEIGHT = 720;
|
||||
|
||||
// camera
|
||||
Camera camera(glm::vec3(0.0f, 0.0f, 155.0f));
|
||||
float lastX = (float)SCR_WIDTH / 2.0;
|
||||
float lastY = (float)SCR_HEIGHT / 2.0;
|
||||
bool firstMouse = true;
|
||||
|
||||
// timing
|
||||
float deltaTime = 0.0f;
|
||||
float lastFrame = 0.0f;
|
||||
|
||||
int main()
|
||||
{
|
||||
// glfw: initialize and configure
|
||||
// ------------------------------
|
||||
glfwInit();
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
|
||||
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
|
||||
|
||||
#ifdef __APPLE__
|
||||
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
|
||||
#endif
|
||||
|
||||
// glfw window creation
|
||||
// --------------------
|
||||
GLFWwindow* window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "LearnOpenGL", NULL, NULL);
|
||||
if (window == NULL)
|
||||
{
|
||||
std::cout << "Failed to create GLFW window" << std::endl;
|
||||
glfwTerminate();
|
||||
return -1;
|
||||
}
|
||||
glfwMakeContextCurrent(window);
|
||||
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
|
||||
glfwSetCursorPosCallback(window, mouse_callback);
|
||||
glfwSetScrollCallback(window, scroll_callback);
|
||||
|
||||
// tell GLFW to capture our mouse
|
||||
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
|
||||
|
||||
// glad: load all OpenGL function pointers
|
||||
// ---------------------------------------
|
||||
if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
|
||||
{
|
||||
std::cout << "Failed to initialize GLAD" << std::endl;
|
||||
return -1;
|
||||
}
|
||||
|
||||
// configure global opengl state
|
||||
// -----------------------------
|
||||
glEnable(GL_DEPTH_TEST);
|
||||
|
||||
// build and compile shaders
|
||||
// -------------------------
|
||||
Shader planetshader("assest/shader/4<><EFBFBD>OpenGL/6.10.3.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD>Ǵ<EFBFBD>-<2D><>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>.vs", "assest/shader/4<><EFBFBD>OpenGL/6.10.3.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD>Ǵ<EFBFBD>-<2D><>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>.fs");
|
||||
Shader rockshader("assest/shader/4<><EFBFBD>OpenGL/6.10.4.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD>Ǵ<EFBFBD>-ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.vs", "assest/shader/4<><EFBFBD>OpenGL/6.10.4.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD>Ǵ<EFBFBD>-ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.fs");
|
||||
|
||||
// set up vertex data (and buffer(s)) and configure vertex attributes
|
||||
// ------------------------------------------------------------------
|
||||
// <20><><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>
|
||||
Model planet(FileSystem::getPath("assest/model/planet/planet.obj"));
|
||||
Model rock(FileSystem::getPath("assest/model/rock/rock.obj"));
|
||||
|
||||
// model<65><6C><EFBFBD>飬ʯͷ<CAAF><CDB7>ƫ<EFBFBD><C6AB>λ<EFBFBD><CEBB>
|
||||
unsigned int amount = 100000;
|
||||
glm::mat4* modelMatrices;
|
||||
modelMatrices = new glm::mat4[amount];
|
||||
srand(static_cast<unsigned int>(glfwGetTime()));// <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
float radius = 150.0f;
|
||||
float offset = 25.0f;
|
||||
for (unsigned int i = 0; i < amount; i++) {
|
||||
glm::mat4 model = glm::mat4(1.0f);
|
||||
// <20>Ƕȣ<C7B6>0-360<36><30>
|
||||
float angle = (float)i / (float)amount * 360.0f;
|
||||
// 1. λ<>ƣ<EFBFBD><C6A3>ֲ<EFBFBD><D6B2>ڰ뾶Ϊ radius <20><>Բ<EFBFBD><D4B2><EFBFBD>ϣ<EFBFBD>ƫ<EFBFBD>Ʒ<EFBFBD>Χ<EFBFBD><CEA7>[-0ffset, offset]
|
||||
// rand()<29><>ΧΪ0~RAND_MAX, 700 % 500 = 200 / 100 = 2 - 2.5 = -0.5
|
||||
float displacement = (rand() % (int)(2 * offset * 100)) / 100.0f - offset;
|
||||
float x = sin(angle) * radius + displacement;
|
||||
|
||||
displacement = (rand() % (int)(2 * offset * 100)) / 100.0f - offset;
|
||||
float y = displacement * 0.4f;
|
||||
|
||||
displacement = (rand() % (int)(2 * offset * 100)) / 100.0f - offset;
|
||||
float z = cos(angle) * radius + displacement;
|
||||
model = glm::translate(model, glm::vec3(x, y, z));
|
||||
|
||||
// 2.<2E><><EFBFBD>ţ<EFBFBD><C5A3><EFBFBD>0.05<EFBFBD><EFBFBD>0.25f֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
float scale = (rand() % 20) / 100.0f + 0.05;
|
||||
model = glm::scale(model, glm::vec3(scale));
|
||||
|
||||
// 3.<2E><>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>(<28><>)<29><><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת
|
||||
float rotAngle = (rand() % 360);
|
||||
model = glm::rotate(model, rotAngle, glm::vec3(0.4f, 0.6f, 0.8f));
|
||||
|
||||
// 4. <20><><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
modelMatrices[i] = model;
|
||||
}
|
||||
// <20><><EFBFBD>ø<EFBFBD>rock<63><6B>model
|
||||
unsigned int buffer;
|
||||
glGenBuffers(1, &buffer);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, buffer);
|
||||
glBufferData(GL_ARRAY_BUFFER, amount * sizeof(glm::mat4), &modelMatrices[0], GL_STATIC_DRAW);
|
||||
for (unsigned int i = 0; i < rock.meshes.size(); i++) {// rock.meshes.size() = 1
|
||||
unsigned int VAO = rock.meshes[i].VAO;
|
||||
glBindVertexArray(VAO);
|
||||
// <20><><EFBFBD><EFBFBD>mat4<74>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
|
||||
glEnableVertexAttribArray(3);
|
||||
glVertexAttribPointer(3, 4, GL_FLOAT, GL_FALSE, sizeof(glm::mat4), (void*)0);
|
||||
glEnableVertexAttribArray(4);
|
||||
glVertexAttribPointer(4, 4, GL_FLOAT, GL_FALSE, sizeof(glm::mat4), (void*)(sizeof(glm::vec4)));
|
||||
glEnableVertexAttribArray(5);
|
||||
glVertexAttribPointer(5, 4, GL_FLOAT, GL_FALSE, sizeof(glm::mat4), (void*)(2 * sizeof(glm::vec4)));
|
||||
glEnableVertexAttribArray(6);
|
||||
glVertexAttribPointer(6, 4, GL_FLOAT, GL_FALSE, sizeof(glm::mat4), (void*)(3 * sizeof(glm::vec4)));
|
||||
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD>ÿ1<C3BF><31>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
glVertexAttribDivisor(3, 1);
|
||||
glVertexAttribDivisor(4, 1);
|
||||
glVertexAttribDivisor(5, 1);
|
||||
glVertexAttribDivisor(6, 1);
|
||||
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
|
||||
// render loop
|
||||
// -----------
|
||||
while (!glfwWindowShouldClose(window))
|
||||
{
|
||||
// per-frame time logic
|
||||
// --------------------
|
||||
float currentFrame = static_cast<float>(glfwGetTime());
|
||||
deltaTime = currentFrame - lastFrame;
|
||||
lastFrame = currentFrame;
|
||||
|
||||
// input
|
||||
// -----
|
||||
processInput(window);
|
||||
|
||||
// render
|
||||
// ------
|
||||
glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
|
||||
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
glm::mat4 projection = glm::perspective(glm::radians(45.0f), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 1000.0f);
|
||||
glm::mat4 view = camera.GetViewMatrix();
|
||||
rockshader.use();
|
||||
rockshader.setMat4("projection", projection);
|
||||
rockshader.setMat4("view", view);
|
||||
planetshader.use();
|
||||
planetshader.setMat4("projection", projection);
|
||||
planetshader.setMat4("view", view);
|
||||
// <20>滭<EFBFBD><E6BBAD><EFBFBD><EFBFBD>
|
||||
planetshader.use();
|
||||
glm::mat4 model = glm::mat4(1.0f);
|
||||
model = glm::translate(model, glm::vec3(0.0f, -3.0f, 0.0f));
|
||||
model = glm::scale(model, glm::vec3(4.0f, 4.0f, 4.0f));
|
||||
planetshader.setMat4("model", model);
|
||||
planet.Draw(planetshader);
|
||||
|
||||
// <20>滭ʯͷ
|
||||
rockshader.use();
|
||||
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ
|
||||
rockshader.setInt("texture_diffuse1", 0);
|
||||
glActiveTexture(GL_TEXTURE0);
|
||||
glBindTexture(GL_TEXTURE_2D, rock.textures_loaded[0].id);;
|
||||
for (unsigned int i = 0; i < rock.meshes.size(); i++) {
|
||||
glBindVertexArray(rock.meshes[i].VAO);
|
||||
// ע<><D7A2><EFBFBD><EFBFBD>5<EFBFBD><35><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>Ƶ<EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
glDrawElementsInstanced(GL_TRIANGLES, rock.meshes[i].indices.size(), GL_UNSIGNED_INT, 0, amount);
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
|
||||
// glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)
|
||||
// -------------------------------------------------------------------------------
|
||||
glfwSwapBuffers(window);
|
||||
glfwPollEvents();
|
||||
}
|
||||
|
||||
// optional: de-allocate all resources once they've outlived their purpose:
|
||||
// ------------------------------------------------------------------------
|
||||
|
||||
glfwTerminate();
|
||||
return 0;
|
||||
}
|
||||
|
||||
// process all input: query GLFW whether relevant keys are pressed/released this frame and react accordingly
|
||||
// ---------------------------------------------------------------------------------------------------------
|
||||
void processInput(GLFWwindow* window)
|
||||
{
|
||||
if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
|
||||
glfwSetWindowShouldClose(window, true);
|
||||
|
||||
if (glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(FORWARD, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(BACKWARD, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(LEFT, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS)
|
||||
camera.ProcessKeyboard(RIGHT, deltaTime);
|
||||
}
|
||||
|
||||
// glfw: whenever the window size changed (by OS or user resize) this callback function executes
|
||||
// ---------------------------------------------------------------------------------------------
|
||||
void framebuffer_size_callback(GLFWwindow* window, int width, int height)
|
||||
{
|
||||
// make sure the viewport matches the new window dimensions; note that width and
|
||||
// height will be significantly larger than specified on retina displays.
|
||||
glViewport(0, 0, width, height);
|
||||
}
|
||||
|
||||
// glfw: whenever the mouse moves, this callback is called
|
||||
// -------------------------------------------------------
|
||||
void mouse_callback(GLFWwindow* window, double xposIn, double yposIn)
|
||||
{
|
||||
float xpos = static_cast<float>(xposIn);
|
||||
float ypos = static_cast<float>(yposIn);
|
||||
|
||||
if (firstMouse)
|
||||
{
|
||||
lastX = xpos;
|
||||
lastY = ypos;
|
||||
firstMouse = false;
|
||||
}
|
||||
|
||||
float xoffset = xpos - lastX;
|
||||
float yoffset = lastY - ypos; // reversed since y-coordinates go from bottom to top
|
||||
|
||||
lastX = xpos;
|
||||
lastY = ypos;
|
||||
|
||||
camera.ProcessMouseMovement(xoffset, yoffset);
|
||||
}
|
||||
|
||||
// glfw: whenever the mouse scroll wheel scrolls, this callback is called
|
||||
// ----------------------------------------------------------------------
|
||||
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset)
|
||||
{
|
||||
camera.ProcessMouseScroll(static_cast<float>(yoffset));
|
||||
}
|
||||
|
||||
// utility function for loading a 2D texture from file
|
||||
// ---------------------------------------------------
|
||||
unsigned int loadTexture(char const* path)
|
||||
{
|
||||
unsigned int textureID;
|
||||
glGenTextures(1, &textureID);
|
||||
|
||||
int width, height, nrComponents;
|
||||
unsigned char* data = stbi_load(path, &width, &height, &nrComponents, 0);
|
||||
if (data)
|
||||
{
|
||||
GLenum format;
|
||||
if (nrComponents == 1)
|
||||
format = GL_RED;
|
||||
else if (nrComponents == 3)
|
||||
format = GL_RGB;
|
||||
else if (nrComponents == 4)
|
||||
format = GL_RGBA;
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, textureID);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, data);
|
||||
glGenerateMipmap(GL_TEXTURE_2D);
|
||||
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
|
||||
stbi_image_free(data);
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cout << "Texture failed to load at path: " << path << std::endl;
|
||||
stbi_image_free(data);
|
||||
}
|
||||
|
||||
return textureID;
|
||||
}
|
||||
@ -12,20 +12,17 @@
|
||||
|
||||
#include <iostream>
|
||||
#include "MyFileSystem.h"
|
||||
|
||||
void framebuffer_size_callback(GLFWwindow* window, int width, int height);
|
||||
void mouse_callback(GLFWwindow* window, double xpos, double ypos);
|
||||
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset);
|
||||
void processInput(GLFWwindow* window);
|
||||
unsigned int loadTexture(const char* path);
|
||||
unsigned int loadCubemap(vector<std::string> faces);
|
||||
|
||||
// settings
|
||||
const unsigned int SCR_WIDTH = 800;
|
||||
const unsigned int SCR_HEIGHT = 600;
|
||||
|
||||
// camera
|
||||
Camera camera(glm::vec3(0.0f, 0.0f, 3.0f));
|
||||
Camera camera(glm::vec3(0.0f, 0.0f, 155.0f));
|
||||
float lastX = (float)SCR_WIDTH / 2.0;
|
||||
float lastY = (float)SCR_HEIGHT / 2.0;
|
||||
bool firstMouse = true;
|
||||
@ -78,153 +75,79 @@ int main()
|
||||
|
||||
// build and compile shaders
|
||||
// -------------------------
|
||||
//Shader shader("6.2.cubemaps.vs", "6.2.cubemaps.fs");
|
||||
//Shader skyboxShader("6.2.skybox.vs", "6.2.skybox.fs");
|
||||
Shader shader("assest/shader/4<><EFBFBD>OpenGL/6.2.1.cube-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>պ<EFBFBD>.vs", "assest/shader/4<><EFBFBD>OpenGL/6.2.1.cube-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>պ<EFBFBD>.fs");
|
||||
Shader skyboxShader("assest/shader/4<><EFBFBD>OpenGL/6.1.1.<2E><><EFBFBD>պ<EFBFBD>-<2D><>ͨЧ<CDA8><D0A7>.vs", "assest/shader/4<><EFBFBD>OpenGL/6.1.1.<2E><><EFBFBD>պ<EFBFBD>-<2D><>ͨЧ<CDA8><D0A7>.fs");
|
||||
Shader asteroidShader("assest/shader/4<><EFBFBD>OpenGL/6.10.4.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD>Ǵ<EFBFBD>-ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.vs", "assest/shader/4<><EFBFBD>OpenGL/6.10.4.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD>Ǵ<EFBFBD>-ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.fs");
|
||||
Shader planetShader("assest/shader/4<><EFBFBD>OpenGL/6.10.3.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD>Ǵ<EFBFBD>-<2D><>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>.vs", "assest/shader/4<><EFBFBD>OpenGL/6.10.3.<2E><>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD>Ǵ<EFBFBD>-<2D><>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>.fs");
|
||||
|
||||
// set up vertex data (and buffer(s)) and configure vertex attributes
|
||||
// load models
|
||||
// -----------
|
||||
Model rock(FileSystem::getPath("assest/model/rock/rock.obj"));
|
||||
Model planet(FileSystem::getPath("assest/model/planet/planet.obj"));
|
||||
|
||||
// generate a large list of semi-random model transformation matrices
|
||||
// ------------------------------------------------------------------
|
||||
float cubeVertices[] = {
|
||||
// positions // normals
|
||||
-0.5f, -0.5f, -0.5f, 0.0f, 0.0f, -1.0f,
|
||||
0.5f, -0.5f, -0.5f, 0.0f, 0.0f, -1.0f,
|
||||
0.5f, 0.5f, -0.5f, 0.0f, 0.0f, -1.0f,
|
||||
0.5f, 0.5f, -0.5f, 0.0f, 0.0f, -1.0f,
|
||||
-0.5f, 0.5f, -0.5f, 0.0f, 0.0f, -1.0f,
|
||||
-0.5f, -0.5f, -0.5f, 0.0f, 0.0f, -1.0f,
|
||||
unsigned int amount = 100000;
|
||||
glm::mat4* modelMatrices;
|
||||
modelMatrices = new glm::mat4[amount];
|
||||
srand(static_cast<unsigned int>(glfwGetTime())); // initialize random seed
|
||||
float radius = 150.0;
|
||||
float offset = 25.0f;
|
||||
for (unsigned int i = 0; i < amount; i++)
|
||||
{
|
||||
glm::mat4 model = glm::mat4(1.0f);
|
||||
// 1. translation: displace along circle with 'radius' in range [-offset, offset]
|
||||
float angle = (float)i / (float)amount * 360.0f;
|
||||
float displacement = (rand() % (int)(2 * offset * 100)) / 100.0f - offset;
|
||||
float x = sin(angle) * radius + displacement;
|
||||
displacement = (rand() % (int)(2 * offset * 100)) / 100.0f - offset;
|
||||
float y = displacement * 0.4f; // keep height of asteroid field smaller compared to width of x and z
|
||||
displacement = (rand() % (int)(2 * offset * 100)) / 100.0f - offset;
|
||||
float z = cos(angle) * radius + displacement;
|
||||
model = glm::translate(model, glm::vec3(x, y, z));
|
||||
|
||||
-0.5f, -0.5f, 0.5f, 0.0f, 0.0f, 1.0f,
|
||||
0.5f, -0.5f, 0.5f, 0.0f, 0.0f, 1.0f,
|
||||
0.5f, 0.5f, 0.5f, 0.0f, 0.0f, 1.0f,
|
||||
0.5f, 0.5f, 0.5f, 0.0f, 0.0f, 1.0f,
|
||||
-0.5f, 0.5f, 0.5f, 0.0f, 0.0f, 1.0f,
|
||||
-0.5f, -0.5f, 0.5f, 0.0f, 0.0f, 1.0f,
|
||||
// 2. scale: Scale between 0.05 and 0.25f
|
||||
float scale = static_cast<float>((rand() % 20) / 100.0 + 0.05);
|
||||
model = glm::scale(model, glm::vec3(scale));
|
||||
|
||||
-0.5f, 0.5f, 0.5f, -1.0f, 0.0f, 0.0f,
|
||||
-0.5f, 0.5f, -0.5f, -1.0f, 0.0f, 0.0f,
|
||||
-0.5f, -0.5f, -0.5f, -1.0f, 0.0f, 0.0f,
|
||||
-0.5f, -0.5f, -0.5f, -1.0f, 0.0f, 0.0f,
|
||||
-0.5f, -0.5f, 0.5f, -1.0f, 0.0f, 0.0f,
|
||||
-0.5f, 0.5f, 0.5f, -1.0f, 0.0f, 0.0f,
|
||||
// 3. rotation: add random rotation around a (semi)randomly picked rotation axis vector
|
||||
float rotAngle = static_cast<float>((rand() % 360));
|
||||
model = glm::rotate(model, rotAngle, glm::vec3(0.4f, 0.6f, 0.8f));
|
||||
|
||||
0.5f, 0.5f, 0.5f, 1.0f, 0.0f, 0.0f,
|
||||
0.5f, 0.5f, -0.5f, 1.0f, 0.0f, 0.0f,
|
||||
0.5f, -0.5f, -0.5f, 1.0f, 0.0f, 0.0f,
|
||||
0.5f, -0.5f, -0.5f, 1.0f, 0.0f, 0.0f,
|
||||
0.5f, -0.5f, 0.5f, 1.0f, 0.0f, 0.0f,
|
||||
0.5f, 0.5f, 0.5f, 1.0f, 0.0f, 0.0f,
|
||||
// 4. now add to list of matrices
|
||||
modelMatrices[i] = model;
|
||||
}
|
||||
|
||||
-0.5f, -0.5f, -0.5f, 0.0f, -1.0f, 0.0f,
|
||||
0.5f, -0.5f, -0.5f, 0.0f, -1.0f, 0.0f,
|
||||
0.5f, -0.5f, 0.5f, 0.0f, -1.0f, 0.0f,
|
||||
0.5f, -0.5f, 0.5f, 0.0f, -1.0f, 0.0f,
|
||||
-0.5f, -0.5f, 0.5f, 0.0f, -1.0f, 0.0f,
|
||||
-0.5f, -0.5f, -0.5f, 0.0f, -1.0f, 0.0f,
|
||||
// configure instanced array
|
||||
// -------------------------
|
||||
unsigned int buffer;
|
||||
glGenBuffers(1, &buffer);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, buffer);
|
||||
glBufferData(GL_ARRAY_BUFFER, amount * sizeof(glm::mat4), &modelMatrices[0], GL_STATIC_DRAW);
|
||||
|
||||
-0.5f, 0.5f, -0.5f, 0.0f, 1.0f, 0.0f,
|
||||
0.5f, 0.5f, -0.5f, 0.0f, 1.0f, 0.0f,
|
||||
0.5f, 0.5f, 0.5f, 0.0f, 1.0f, 0.0f,
|
||||
0.5f, 0.5f, 0.5f, 0.0f, 1.0f, 0.0f,
|
||||
-0.5f, 0.5f, 0.5f, 0.0f, 1.0f, 0.0f,
|
||||
-0.5f, 0.5f, -0.5f, 0.0f, 1.0f, 0.0f
|
||||
};
|
||||
float skyboxVertices[] = {
|
||||
// positions
|
||||
-1.0f, 1.0f, -1.0f,
|
||||
-1.0f, -1.0f, -1.0f,
|
||||
1.0f, -1.0f, -1.0f,
|
||||
1.0f, -1.0f, -1.0f,
|
||||
1.0f, 1.0f, -1.0f,
|
||||
-1.0f, 1.0f, -1.0f,
|
||||
// set transformation matrices as an instance vertex attribute (with divisor 1)
|
||||
// note: we're cheating a little by taking the, now publicly declared, VAO of the model's mesh(es) and adding new vertexAttribPointers
|
||||
// normally you'd want to do this in a more organized fashion, but for learning purposes this will do.
|
||||
// -----------------------------------------------------------------------------------------------------------------------------------
|
||||
for (unsigned int i = 0; i < rock.meshes.size(); i++)
|
||||
{
|
||||
unsigned int VAO = rock.meshes[i].VAO;
|
||||
glBindVertexArray(VAO);
|
||||
// set attribute pointers for matrix (4 times vec4)
|
||||
glEnableVertexAttribArray(3);
|
||||
glVertexAttribPointer(3, 4, GL_FLOAT, GL_FALSE, sizeof(glm::mat4), (void*)0);
|
||||
glEnableVertexAttribArray(4);
|
||||
glVertexAttribPointer(4, 4, GL_FLOAT, GL_FALSE, sizeof(glm::mat4), (void*)(sizeof(glm::vec4)));
|
||||
glEnableVertexAttribArray(5);
|
||||
glVertexAttribPointer(5, 4, GL_FLOAT, GL_FALSE, sizeof(glm::mat4), (void*)(2 * sizeof(glm::vec4)));
|
||||
glEnableVertexAttribArray(6);
|
||||
glVertexAttribPointer(6, 4, GL_FLOAT, GL_FALSE, sizeof(glm::mat4), (void*)(3 * sizeof(glm::vec4)));
|
||||
|
||||
-1.0f, -1.0f, 1.0f,
|
||||
-1.0f, -1.0f, -1.0f,
|
||||
-1.0f, 1.0f, -1.0f,
|
||||
-1.0f, 1.0f, -1.0f,
|
||||
-1.0f, 1.0f, 1.0f,
|
||||
-1.0f, -1.0f, 1.0f,
|
||||
glVertexAttribDivisor(3, 1);
|
||||
glVertexAttribDivisor(4, 1);
|
||||
glVertexAttribDivisor(5, 1);
|
||||
glVertexAttribDivisor(6, 1);
|
||||
|
||||
1.0f, -1.0f, -1.0f,
|
||||
1.0f, -1.0f, 1.0f,
|
||||
1.0f, 1.0f, 1.0f,
|
||||
1.0f, 1.0f, 1.0f,
|
||||
1.0f, 1.0f, -1.0f,
|
||||
1.0f, -1.0f, -1.0f,
|
||||
|
||||
-1.0f, -1.0f, 1.0f,
|
||||
-1.0f, 1.0f, 1.0f,
|
||||
1.0f, 1.0f, 1.0f,
|
||||
1.0f, 1.0f, 1.0f,
|
||||
1.0f, -1.0f, 1.0f,
|
||||
-1.0f, -1.0f, 1.0f,
|
||||
|
||||
-1.0f, 1.0f, -1.0f,
|
||||
1.0f, 1.0f, -1.0f,
|
||||
1.0f, 1.0f, 1.0f,
|
||||
1.0f, 1.0f, 1.0f,
|
||||
-1.0f, 1.0f, 1.0f,
|
||||
-1.0f, 1.0f, -1.0f,
|
||||
|
||||
-1.0f, -1.0f, -1.0f,
|
||||
-1.0f, -1.0f, 1.0f,
|
||||
1.0f, -1.0f, -1.0f,
|
||||
1.0f, -1.0f, -1.0f,
|
||||
-1.0f, -1.0f, 1.0f,
|
||||
1.0f, -1.0f, 1.0f
|
||||
};
|
||||
|
||||
// cube VAO
|
||||
unsigned int cubeVAO, cubeVBO;
|
||||
glGenVertexArrays(1, &cubeVAO);
|
||||
glGenBuffers(1, &cubeVBO);
|
||||
glBindVertexArray(cubeVAO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, cubeVBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(cubeVertices), &cubeVertices, GL_STATIC_DRAW);
|
||||
glEnableVertexAttribArray(0);
|
||||
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)0);
|
||||
glEnableVertexAttribArray(1);
|
||||
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)(3 * sizeof(float)));
|
||||
// skybox VAO
|
||||
unsigned int skyboxVAO, skyboxVBO;
|
||||
glGenVertexArrays(1, &skyboxVAO);
|
||||
glGenBuffers(1, &skyboxVBO);
|
||||
glBindVertexArray(skyboxVAO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, skyboxVBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(skyboxVertices), &skyboxVertices, GL_STATIC_DRAW);
|
||||
glEnableVertexAttribArray(0);
|
||||
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
|
||||
|
||||
// load textures
|
||||
// -------------
|
||||
//vector<std::string> faces
|
||||
//{
|
||||
// FileSystem::getPath("resources/textures/skybox/right.jpg"),
|
||||
// FileSystem::getPath("resources/textures/skybox/left.jpg"),
|
||||
// FileSystem::getPath("resources/textures/skybox/top.jpg"),
|
||||
// FileSystem::getPath("resources/textures/skybox/bottom.jpg"),
|
||||
// FileSystem::getPath("resources/textures/skybox/front.jpg"),
|
||||
// FileSystem::getPath("resources/textures/skybox/back.jpg"),
|
||||
//};
|
||||
//unsigned int cubemapTexture = loadCubemap(faces);
|
||||
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>պ<EFBFBD>
|
||||
vector<std::string> faces{
|
||||
FileSystem::getPath("assest/textures/skybox/right.jpg"),
|
||||
FileSystem::getPath("assest/textures/skybox/left.jpg"),
|
||||
FileSystem::getPath("assest/textures/skybox/top.jpg"),
|
||||
FileSystem::getPath("assest/textures/skybox/bottom.jpg"),
|
||||
FileSystem::getPath("assest/textures/skybox/front.jpg"),
|
||||
FileSystem::getPath("assest/textures/skybox/back.jpg")
|
||||
};
|
||||
unsigned int cubemapTexture = loadCubemap(faces);
|
||||
|
||||
// shader configuration
|
||||
// --------------------
|
||||
shader.use();
|
||||
shader.setInt("skybox", 0);
|
||||
|
||||
skyboxShader.use();
|
||||
skyboxShader.setInt("skybox", 0);
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
|
||||
// render loop
|
||||
// -----------
|
||||
@ -245,35 +168,34 @@ int main()
|
||||
glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
|
||||
// draw scene as normal
|
||||
shader.use();
|
||||
glm::mat4 model = glm::mat4(1.0f);
|
||||
// configure transformation matrices
|
||||
glm::mat4 projection = glm::perspective(glm::radians(45.0f), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 1000.0f);
|
||||
glm::mat4 view = camera.GetViewMatrix();
|
||||
glm::mat4 projection = glm::perspective(glm::radians(camera.Zoom), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 100.0f);
|
||||
shader.setMat4("model", model);
|
||||
shader.setMat4("view", view);
|
||||
shader.setMat4("projection", projection);
|
||||
shader.setVec3("cameraPos", camera.Position);
|
||||
// cubes
|
||||
glBindVertexArray(cubeVAO);
|
||||
glActiveTexture(GL_TEXTURE0);
|
||||
glBindTexture(GL_TEXTURE_CUBE_MAP, cubemapTexture);
|
||||
glDrawArrays(GL_TRIANGLES, 0, 36);
|
||||
glBindVertexArray(0);
|
||||
asteroidShader.use();
|
||||
asteroidShader.setMat4("projection", projection);
|
||||
asteroidShader.setMat4("view", view);
|
||||
planetShader.use();
|
||||
planetShader.setMat4("projection", projection);
|
||||
planetShader.setMat4("view", view);
|
||||
|
||||
// draw skybox as last
|
||||
glDepthFunc(GL_LEQUAL); // change depth function so depth test passes when values are equal to depth buffer's content
|
||||
skyboxShader.use();
|
||||
view = glm::mat4(glm::mat3(camera.GetViewMatrix())); // remove translation from the view matrix
|
||||
skyboxShader.setMat4("view", view);
|
||||
skyboxShader.setMat4("projection", projection);
|
||||
// skybox cube
|
||||
glBindVertexArray(skyboxVAO);
|
||||
// draw planet
|
||||
glm::mat4 model = glm::mat4(1.0f);
|
||||
model = glm::translate(model, glm::vec3(0.0f, -3.0f, 0.0f));
|
||||
model = glm::scale(model, glm::vec3(4.0f, 4.0f, 4.0f));
|
||||
planetShader.setMat4("model", model);
|
||||
planet.Draw(planetShader);
|
||||
|
||||
// draw meteorites
|
||||
asteroidShader.use();
|
||||
asteroidShader.setInt("texture_diffuse1", 0);
|
||||
glActiveTexture(GL_TEXTURE0);
|
||||
glBindTexture(GL_TEXTURE_CUBE_MAP, cubemapTexture);
|
||||
glDrawArrays(GL_TRIANGLES, 0, 36);
|
||||
glBindVertexArray(0);
|
||||
glDepthFunc(GL_LESS); // set depth function back to default
|
||||
glBindTexture(GL_TEXTURE_2D, rock.textures_loaded[0].id); // note: we also made the textures_loaded vector public (instead of private) from the model class.
|
||||
for (unsigned int i = 0; i < rock.meshes.size(); i++)
|
||||
{
|
||||
glBindVertexArray(rock.meshes[i].VAO);
|
||||
glDrawElementsInstanced(GL_TRIANGLES, static_cast<unsigned int>(rock.meshes[i].indices.size()), GL_UNSIGNED_INT, 0, amount);
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
|
||||
// glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)
|
||||
// -------------------------------------------------------------------------------
|
||||
@ -281,13 +203,6 @@ int main()
|
||||
glfwPollEvents();
|
||||
}
|
||||
|
||||
// optional: de-allocate all resources once they've outlived their purpose:
|
||||
// ------------------------------------------------------------------------
|
||||
glDeleteVertexArrays(1, &cubeVAO);
|
||||
glDeleteVertexArrays(1, &skyboxVAO);
|
||||
glDeleteBuffers(1, &cubeVBO);
|
||||
glDeleteBuffers(1, &skyboxVBO);
|
||||
|
||||
glfwTerminate();
|
||||
return 0;
|
||||
}
|
||||
@ -324,6 +239,7 @@ void mouse_callback(GLFWwindow* window, double xposIn, double yposIn)
|
||||
{
|
||||
float xpos = static_cast<float>(xposIn);
|
||||
float ypos = static_cast<float>(yposIn);
|
||||
|
||||
if (firstMouse)
|
||||
{
|
||||
lastX = xpos;
|
||||
@ -345,82 +261,4 @@ void mouse_callback(GLFWwindow* window, double xposIn, double yposIn)
|
||||
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset)
|
||||
{
|
||||
camera.ProcessMouseScroll(static_cast<float>(yoffset));
|
||||
}
|
||||
|
||||
// utility function for loading a 2D texture from file
|
||||
// ---------------------------------------------------
|
||||
unsigned int loadTexture(char const* path)
|
||||
{
|
||||
unsigned int textureID;
|
||||
glGenTextures(1, &textureID);
|
||||
|
||||
int width, height, nrComponents;
|
||||
unsigned char* data = stbi_load(path, &width, &height, &nrComponents, 0);
|
||||
if (data)
|
||||
{
|
||||
GLenum format;
|
||||
if (nrComponents == 1)
|
||||
format = GL_RED;
|
||||
else if (nrComponents == 3)
|
||||
format = GL_RGB;
|
||||
else if (nrComponents == 4)
|
||||
format = GL_RGBA;
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, textureID);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, data);
|
||||
glGenerateMipmap(GL_TEXTURE_2D);
|
||||
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
|
||||
stbi_image_free(data);
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cout << "Texture failed to load at path: " << path << std::endl;
|
||||
stbi_image_free(data);
|
||||
}
|
||||
|
||||
return textureID;
|
||||
}
|
||||
|
||||
// loads a cubemap texture from 6 individual texture faces
|
||||
// order:
|
||||
// +X (right)
|
||||
// -X (left)
|
||||
// +Y (top)
|
||||
// -Y (bottom)
|
||||
// +Z (front)
|
||||
// -Z (back)
|
||||
// -------------------------------------------------------
|
||||
unsigned int loadCubemap(vector<std::string> faces)
|
||||
{
|
||||
unsigned int textureID;
|
||||
glGenTextures(1, &textureID);
|
||||
glBindTexture(GL_TEXTURE_CUBE_MAP, textureID);
|
||||
|
||||
int width, height, nrComponents;
|
||||
for (unsigned int i = 0; i < faces.size(); i++)
|
||||
{
|
||||
unsigned char* data = stbi_load(faces[i].c_str(), &width, &height, &nrComponents, 0);
|
||||
if (data)
|
||||
{
|
||||
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
|
||||
stbi_image_free(data);
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cout << "Cubemap texture failed to load at path: " << faces[i] << std::endl;
|
||||
stbi_image_free(data);
|
||||
}
|
||||
}
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
|
||||
|
||||
return textureID;
|
||||
}
|
||||
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Reference in New Issue
Block a user