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Remove branching from ShaderLight as well

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This commit is contained in:
Lwmte 2024-12-05 08:59:57 +01:00
parent d6cf25f16e
commit 2ee37ea7de
1 changed files with 15 additions and 21 deletions
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36
TombEngine/Shaders/ShaderLight.hlsli
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@ -428,31 +428,25 @@ float3 CombineLights(float3 ambient, float3 vertex, float3 tex, float3 pos, floa
for (int i = 0; i < numLights; i++)
{
int lightType = lights[i].Type;
float isPoint = step(0.5f, float(lights[i].Type == LT_POINT));
float isShadow = step(0.5f, float(lights[i].Type == LT_SHADOW));
float isSun = step(0.5f, float(lights[i].Type == LT_SUN));
float isSpot = step(0.5f, float(lights[i].Type == LT_SPOT));
if (lightType == LT_POINT)
{
diffuse += DoPointLight(pos, normal, lights[i]);
spec += DoSpecularPoint(pos, normal, lights[i], sheen);
}
else if (lightType == LT_SHADOW)
{
shadow += DoShadowLight(pos, normal, lights[i]);
}
else if (lightType == LT_SUN)
{
diffuse += DoDirectionalLight(pos, normal, lights[i]);
spec += DoSpecularSun(normal, lights[i], sheen);
}
else if (lightType == LT_SPOT)
{
diffuse += DoSpotLight(pos, normal, lights[i]);
spec += DoSpecularSpot(pos, normal, lights[i], sheen);
}
diffuse += isPoint * DoPointLight(pos, normal, lights[i]);
spec += isPoint * DoSpecularPoint(pos, normal, lights[i], sheen);
shadow += isShadow * DoShadowLight(pos, normal, lights[i]);
diffuse += isSun * DoDirectionalLight(pos, normal, lights[i]);
spec += isSun * DoSpecularSun(normal, lights[i], sheen);
diffuse += isSpot * DoSpotLight(pos, normal, lights[i]);
spec += isSpot * DoSpecularSpot(pos, normal, lights[i], sheen);
}
shadow = saturate(shadow);
diffuse.xyz *= tex.xyz;
diffuse *= tex;
float3 ambTex = saturate(ambient - shadow) * tex;
float3 combined = ambTex + diffuse + spec;