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Cull vertices beyond cull distance

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Dane Johnson 2021-01-23 23:49:13 -06:00
parent 651ad69c26
commit 799257bfdb
2 changed files with 14 additions and 0 deletions
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5
shaders/flat.frag
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@ -5,6 +5,7 @@ noperspective in vec2 UV;
in vec3 AMBIENT; in vec3 AMBIENT;
in vec3 DIFFUSE; in vec3 DIFFUSE;
in vec3 SPECULAR; in vec3 SPECULAR;
flat in float kill;
out vec4 FragColor; out vec4 FragColor;
@ -38,4 +39,8 @@ void main() {
if (material.cullBack && !gl_FrontFacing) { if (material.cullBack && !gl_FrontFacing) {
discard; discard;
} }
if (kill == 1.0) {
discard;
}
} }

9
shaders/flat.vert
View File

@ -15,6 +15,10 @@ out vec3 AMBIENT;
out vec3 DIFFUSE; out vec3 DIFFUSE;
out vec3 SPECULAR; out vec3 SPECULAR;
flat out float kill;
const float cullDistance = 100.0;
struct DirectionalLight { struct DirectionalLight {
vec3 direction; vec3 direction;
vec3 color; vec3 color;
@ -43,6 +47,11 @@ uniform Material material;
void main() { void main() {
vec4 vertex = PROJECTION * VIEW * MODEL * vec4(pos, 1.0); vec4 vertex = PROJECTION * VIEW * MODEL * vec4(pos, 1.0);
gl_Position = vertex; gl_Position = vertex;
if (length(vertex) > cullDistance) {
kill = 1.0;
} else {
kill = 0.0;
}
UV = uv; UV = uv;