Happy as a clamp

- Fix instances vanishing close to the edge of your screen
Engine-Room · Sep 21, 2024 · b7b7cca · b7b7cca
1 parent 40cfc08
commit b7b7cca
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/common/src/backend/resources/assets/flywheel/flywheel/internal/indirect/cull.glsl b/common/src/backend/resources/assets/flywheel/flywheel/internal/indirect/cull.glsl
@@ -100,6 +100,10 @@ bool _flw_isVisible(uint instanceIndex, uint modelIndex) {
 
             ivec4 bounds = ivec4(aabb * vec4(levelSizePair));
 
+            // Clamp to the texture bounds.
+            // Since we're not going through a sampler out of bounds texel fetches will return 0.
+            bounds = clamp(bounds, ivec4(0), levelSizePair);
+
             float depth01 = texelFetch(_flw_depthPyramid, bounds.xw, level).r;
             float depth11 = texelFetch(_flw_depthPyramid, bounds.zw, level).r;
             float depth10 = texelFetch(_flw_depthPyramid, bounds.zy, level).r;