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slightly improve hiz

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mcrcortex
2025-04-10 20:53:51 +10:00
parent 47592b4e6d
commit b7713815a4
2 changed files with 9 additions and 8 deletions
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8
src/main/resources/assets/voxy/shaders/lod/hierarchical/screenspace.glsl
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@@ -84,16 +84,16 @@ bool isCulledByHiz() {
vec2 ssize = size * vec2(screenW, screenH);
float miplevel = ceil(log2(max(max(ssize.x, ssize.y),1)));
miplevel = clamp(miplevel, 0, 20);
//miplevel = clamp(miplevel, 0, 20);
vec2 midpoint = (maxBB.xy + minBB.xy)*0.5f;
//TODO: maybe get rid of clamp
//Todo: replace with some rasterization, e.g. especially for request back to cpu
vec2 midpoint2 = clamp(midpoint, vec2(0), vec2(1));
bool culled = textureLod(hizDepthSampler, vec3(midpoint2, minBB.z), miplevel) < 0.0001f;
//printf("HiZ sample point: (%f,%f)@%f against %f", midpoint.x, midpoint.y, miplevel, minBB.z);
if (culled && node22.lodLevel != 4) {
printf("HiZ sample point: (%f,%f)@%f against %f", midpoint.x, midpoint.y, miplevel, minBB.z);
}
//if (culled && node22.lodLevel != 4) {
// printf("HiZ sample point: (%f,%f)@%f against %f, value %f", midpoint.x, midpoint.y, miplevel, minBB.z, textureLod(hizDepthSampler, vec3(0.0f,0.0f, 0.000001f), 20));
//}
return culled;
}