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xash3d-fwgs
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More correct emissive textures (#456) 

Я подобрал новое компромиссное значение которое не требует clamp.
Это не идеально, но пока сойдёт. Может давать немного больше солнечных зайчиков чем с clamp.
Позже надо будет разобраться с самим kusok.emissive.
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NightFox 2023-03-04 20:41:05 +03:00 committed by GitHub
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5
ref/vk/shaders/ray_primary_hit.glsl
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@ -56,7 +56,10 @@ void primaryRayHit(rayQueryEXT rq, inout RayPayloadPrimary payload) {
#if 1
// Real correct emissive color
//payload.emissive.rgb = kusok.emissive;
payload.emissive.rgb = clamp(kusok.emissive / (1.0/3.0) / 25, 0, 1.5) * SRGBtoLINEAR(payload.base_color_a.rgb);
//payload.emissive.rgb = kusok.emissive * SRGBtoLINEAR(payload.base_color_a.rgb);
//payload.emissive.rgb = clamp((kusok.emissive * (1.0/3.0) / 20), 0, 1.0) * SRGBtoLINEAR(payload.base_color_a.rgb);
//payload.emissive.rgb = (sqrt(sqrt(kusok.emissive)) * (1.0/3.0)) * SRGBtoLINEAR(payload.base_color_a.rgb);
payload.emissive.rgb = (sqrt(kusok.emissive) / 8) * SRGBtoLINEAR(payload.base_color_a.rgb);
#else
// Fake texture color
if (any(greaterThan(kusok.emissive, vec3(0.))))