opensource/manim
1
0
Fork 0
mirror of https://github.com/3b1b/manim.git synced 2025-08-02 19:46:21 +08:00
Code Issues Packages Projects Releases Wiki Activity

A few small fixes

Browse Source
This commit is contained in:
Grant Sanderson
2023-01-18 12:52:05 -08:00
parent 96b0ec9094
commit d39fea0d4d
1 changed files with 5 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
manimlib/shaders/quadratic_bezier_stroke/geom.glsl
View File

@ -63,7 +63,7 @@ void create_joint(
out vec3 changing_c1
){
float cos_angle = joint_product.w;
if(cos_angle > COS_THRESHOLD || int(joint_type) == NO_JOINT){
if(abs(cos_angle) > COS_THRESHOLD || int(joint_type) == NO_JOINT){
// No joint
changing_c0 = static_c0;
changing_c1 = static_c1;
@ -105,7 +105,7 @@ void get_corners(
// Add correction for sharp angles to prevent weird bevel effects
if(v_joint_product[0].w < -0.5) buff0 *= 2 * (v_joint_product[0].w + 1.0);
if(v_joint_product[2].w < -0.5) buff2 *= 2 * (v_joint_product[0].w + 1.0);
if(v_joint_product[2].w < -0.5) buff2 *= 2 * (v_joint_product[2].w + 1.0);
// Unit normal and joint angles
vec3 normal0 = get_joint_unit_normal(v_joint_product[0]);
@ -113,8 +113,9 @@ void get_corners(
// Set global unit normal
unit_normal = normal0;
// Make sure normals point in the same direction
if(dot(normal0, normal2) < 0) buff2 *= -1;
// Choose the "outward" normal direction
normal0 *= sign(normal0.z);
normal2 *= sign(normal2.z);
vec3 p0_perp;
vec3 p2_perp;