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Merge pull request #540 from Lunarsong/patch-4

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Removed redundant division by w
This commit is contained in:
Sascha Willems 2019-01-31 20:07:09 +01:00 • committed by GitHub
commit d6d1d087fd
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 3 deletions
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5
data/shaders/shadowmappingcascade/scene.frag
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@ -33,12 +33,11 @@ const mat4 biasMat = mat4(
0.5, 0.5, 0.0, 1.0 0.5, 0.5, 0.0, 1.0
); );
float textureProj(vec4 P, vec2 offset, uint cascadeIndex) float textureProj(vec4 shadowCoord, vec2 offset, uint cascadeIndex)
{ {
float shadow = 1.0; float shadow = 1.0;
float bias = 0.005; float bias = 0.005;
vec4 shadowCoord = P / P.w;
if ( shadowCoord.z > -1.0 && shadowCoord.z < 1.0 ) { if ( shadowCoord.z > -1.0 && shadowCoord.z < 1.0 ) {
float dist = texture(shadowMap, vec3(shadowCoord.st + offset, cascadeIndex)).r; float dist = texture(shadowMap, vec3(shadowCoord.st + offset, cascadeIndex)).r;
if (shadowCoord.w > 0 && dist < shadowCoord.z - bias) { if (shadowCoord.w > 0 && dist < shadowCoord.z - bias) {
@ -121,4 +120,4 @@ void main()
break; break;
} }
} }
} }