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authorDan Goodliffe <dan@randomdan.homeip.net>2024-01-30 22:13:56 +0000
committerDan Goodliffe <dan@randomdan.homeip.net>2024-01-30 22:13:56 +0000
commit72ec5dd096a3110e8085919f4c0e3320ef176657 (patch)
tree7eb3c254b681d2cafbc9ce8f13b285a9313474c4 /gfx/gl/shaders
parentRemove the complications from previously storing several shadow maps in the t... (diff)
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Adjust light view projection matrix upfront
Saves doing it per pixel, per region later
Diffstat (limited to 'gfx/gl/shaders')
-rw-r--r--gfx/gl/shaders/directionalLight.fs8
1 files changed, 4 insertions, 4 deletions
diff --git a/gfx/gl/shaders/directionalLight.fs b/gfx/gl/shaders/directionalLight.fs
index c49bb8d..24457b8 100644
--- a/gfx/gl/shaders/directionalLight.fs
+++ b/gfx/gl/shaders/directionalLight.fs
@@ -19,18 +19,18 @@ uniform uint lightViewProjectionCount;
const vec3 e1 = vec3(0, 0, 0), e2 = vec3(1, 1, 1);
- float
+float
insideShadowCube(vec3 v)
{
const vec3 s = step(e1, v) - step(e2, v);
return s.x * s.y * s.z;
}
- float
+float
isShaded(vec4 Position)
{
for (uint m = 0u; m < lightViewProjectionCount; m++) {
- const vec3 PositionInLightSpace = (lightViewProjection[m] * Position).xyz * .5 + .5;
+ const vec3 PositionInLightSpace = (lightViewProjection[m] * Position).xyz;
const float inside = insideShadowCube(PositionInLightSpace);
if (inside > 0) {
const float lightSpaceDepth = texture(shadowMap, vec3(PositionInLightSpace.xy, m)).r;
@@ -40,7 +40,7 @@ isShaded(vec4 Position)
return 0;
}
- void
+void
main()
{
const vec4 Position = vec4(texture(gPosition, TexCoords).xyz - lightPoint, 1);