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clean up brdf

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it was loading in the wrong colorspace, and there as a mix of texture/textureLOD refs leading to inconsistencies
This commit is contained in:
AzaezelX 2025-03-22 13:38:09 -05:00
parent 3b2f8be521
commit 61dbbf7102
6 changed files with 18 additions and 22 deletions
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2
Engine/source/renderInstance/renderProbeMgr.cpp
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@ -238,7 +238,7 @@ bool RenderProbeMgr::onAdd()
mCubeSlotCount = PROBE_ARRAY_SLOT_BUFFER_SIZE;
String brdfTexturePath = GFXTextureManager::getBRDFTexturePath();
if (!mBRDFTexture.set(brdfTexturePath, &GFXTexturePersistentProfile, "BRDFTexture"))
if (!mBRDFTexture.set(brdfTexturePath, &GFXTexturePersistentSRGBProfile, "BRDFTexture"))
{
Con::errorf("RenderProbeMgr::onAdd: Failed to load BRDF Texture");
return false;

BIN
Templates/BaseGame/game/core/rendering/images/brdfTexture.dds
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9
Templates/BaseGame/game/core/rendering/shaders/gl/lighting.glsl
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@ -584,9 +584,8 @@ vec4 computeForwardProbes(Surface surface,
vec2 envBRDF = textureLod(BRDFTexture, vec2(surface.NdotV, surface.roughness),0).rg;
vec3 diffuse = irradiance * surface.baseColor.rgb * (1.0 - surface.metalness);
vec3 specularCol = specular * (F_Schlick(surface.f0, surface.NdotV) * envBRDF.x + envBRDF.y);
specularCol *= surface.metalness + (1.0 - surface.roughness);
vec3 specularCol = specular * lerp(envBRDF.y, envBRDF.x, surface.metalness * (1.0 - surface.roughness));
// Final color output after environment lighting
vec3 finalColor = diffuse + specularCol;
finalColor *= surface.ao;
@ -737,8 +736,8 @@ vec4 debugVizForwardProbes(Surface surface,
vec2 envBRDF = textureLod(BRDFTexture, vec2(surface.NdotV, surface.roughness),0).rg;
vec3 diffuse = irradiance * surface.baseColor.rgb * (1.0 - surface.metalness);
vec3 specularCol = specular * (F_Schlick(surface.f0, surface.NdotV) * envBRDF.x + envBRDF.y);
vec3 specularCol = specular * lerp(envBRDF.y, envBRDF.x, surface.metalness * (1.0 - surface.roughness));
specularCol *= surface.metalness + (1.0 - surface.roughness);
// Final color output after environment lighting
vec3 finalColor = diffuse + specularCol;

13
Templates/BaseGame/game/core/rendering/shaders/lighting.hlsl
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@ -588,11 +588,10 @@ float4 computeForwardProbes(Surface surface,
specular = lerp(specular,TORQUE_TEXCUBEARRAYLOD(specularCubemapAR, surface.R, skylightCubemapIdx, lod).xyz,alpha);
}
float2 envBRDF = TORQUE_TEX2D(BRDFTexture, float2(surface.NdotV, surface.roughness)).rg;
float2 envBRDF = TORQUE_TEX2DLOD(BRDFTexture, float4(surface.NdotV, surface.roughness,0,0)).rg;
float3 diffuse = irradiance * surface.baseColor.rgb * (1.0 - surface.metalness);
float3 specularCol = specular * (F_Schlick(surface.f0, surface.NdotV) * envBRDF.x + envBRDF.y);
specularCol *= surface.metalness + (1.0 - surface.roughness);
float3 specularCol = specular * lerp(envBRDF.y, envBRDF.x, surface.metalness * (1.0 - surface.roughness));
// Final color output after environment lighting
float3 finalColor = diffuse + specularCol;
finalColor *= surface.ao;
@ -741,10 +740,10 @@ float4 debugVizForwardProbes(Surface surface,
return float4(irradiance, 0);
}
float2 envBRDF = TORQUE_TEX2D(BRDFTexture, float2(surface.NdotV, surface.roughness)).rg;
float2 envBRDF = TORQUE_TEX2DLOD(BRDFTexture, float4(surface.NdotV, surface.roughness,0,0)).rg;
float3 diffuse = irradiance * surface.baseColor.rgb * (1.0 - surface.metalness);
float3 specularCol = specular * (F_Schlick(surface.f0, surface.NdotV) * envBRDF.x + envBRDF.y);
float3 specularCol = specular * lerp(envBRDF.y, envBRDF.x, surface.metalness * (1.0 - surface.roughness));
specularCol *= surface.metalness + (1.0 - surface.roughness);
// Final color output after environment lighting
float3 finalColor = diffuse + specularCol;

5
Templates/BaseGame/game/core/rendering/shaders/lighting/advanced/gl/reflectionProbeArrayP.glsl
View file

@ -206,9 +206,8 @@ void main()
vec2 envBRDF = textureLod(BRDFTexture, vec2(surface.NdotV, surface.roughness),0).rg;
vec3 diffuse = irradiance * surface.baseColor.rgb * (1.0 - surface.metalness);
vec3 specularCol = specular * (F_Schlick(surface.f0, surface.NdotV) * envBRDF.x + envBRDF.y);
specularCol *= surface.metalness + (1.0 - surface.roughness);
vec3 specularCol = specular * lerp(envBRDF.y, envBRDF.x, surface.metalness * (1.0 - surface.roughness));
// Final color output after environment lighting
vec3 finalColor = diffuse + specularCol;
finalColor *= surface.ao;

11
Templates/BaseGame/game/core/rendering/shaders/lighting/advanced/reflectionProbeArrayP.hlsl
View file

@ -192,16 +192,15 @@ float4 main(PFXVertToPix IN) : SV_TARGET
return float4(irradiance, 1);
#endif
float2 envBRDF = TORQUE_TEX2D(BRDFTexture, float2(surface.NdotV, surface.roughness)).rg;
float2 envBRDF = TORQUE_TEX2DLOD(BRDFTexture, float4(surface.NdotV, surface.roughness,0,0)).rg;
float3 diffuse = irradiance * surface.baseColor.rgb * (1.0 - surface.metalness);
float3 specularCol = specular * lerp(envBRDF.y, envBRDF.x, surface.metalness * (1.0 - surface.roughness));
float3 specularCol = specular * (F_Schlick(surface.f0, surface.NdotV) * envBRDF.x + envBRDF.y);
specularCol *= surface.metalness + (1.0 - surface.roughness);
// Final color output after environment lighting
float3 finalColor = diffuse + specularCol;
finalColor *= surface.ao;
if(isCapturing == 1)
return float4(lerp((finalColor), surface.baseColor.rgb,surface.metalness),0);
finalColor *= surface.ao;
if(isCapturing == 1)
return float4(lerp(finalColor, surface.baseColor.rgb,surface.metalness),0);
else
{
return float4((finalColor*ambientColor), 0);