allemang.d/toddcox-visualize
1
0
Fork 0
mirror of https://github.com/allemangD/toddcox-visualize.git synced 2025-11-10 12:02:47 -05:00
Code Issues Packages Projects Releases Wiki Activity

shader tweaks

Browse Source
This commit is contained in:
David
2020-03-10 18:45:12 -04:00
parent 63692ced17
commit fd51590a8c
4 changed files with 23 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
vis/shaders/slice/slice.gm.glsl
View File

@@ -15,8 +15,9 @@ layout(std140, binding=1) uniform Matrices {
in ivec4 vInds[];
in vec4 vCol[];
out vec4 pos;
out vec4 col;
layout(location=0) out vec4 pos;
layout(location=1) out vec4 col;
layout(location=2) out vec3 normal;
out gl_PerVertex {
vec4 gl_Position;
@@ -60,6 +61,17 @@ void main() {
sect[S++] = mix(a, b, t);
}
normal = cross(sect[1].xyz - sect[0].xyz, sect[2].xyz - sect[0].xyz);
normal = normalize(normal);
float r = dot(normal, sect[0].xyz);
if (abs(r) < 0.001)
r = dot(normal, sect[0].xyz + vec3(0, 0, 1));
if (r < 0)
normal *= -1;
for (int s = 0; s < S; ++s) {
emit(sect[s]);
}