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Added UTSAPI

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Misaki
2025-05-21 17:02:07 +09:00
parent 35dc7b15a6
commit 59b46bce44
9 changed files with 147 additions and 69 deletions
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16
Runtime/Shaders/Includes/Common/UtsHead.hlsl
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@@ -74,6 +74,22 @@ struct UtsBSDFData
real roughnessB;
};
bool IsNonZeroBSDF(float3 L, float3 normalWS)
{
#if _MATERIAL_TYPE_FACE || _USE_SHADING_RAMP_MAP_ON
return true;
#else
float NdotL = dot(normalWS, L);
return NdotL > 0.0;
#endif
}
bool IsNonZeroBSDF(float3 L, UtsBSDFData bsdfData)
{
return IsNonZeroBSDF(L, bsdfData.normalWS);
}
UTSSurfaceData ConvertSurfaceDataToUTSSurfaceData(SurfaceData surfaceData)
{
UTSSurfaceData output;

34
Runtime/Shaders/Includes/Lighting/UtsLightLoop.hlsl
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@@ -19,25 +19,6 @@ int eAngelRing = 4;
int eRimLight = 5;
int eOutline = 6;
int GetNextDirectionalLightIndex(BuiltinData builtinData, int currentIndex, int mainLightIndex)
{
int i = 0; // Declare once to avoid the D3D11 compiler warning.
for (i = 0; i < (int)_DirectionalLightCount; ++i)
{
if (IsMatchingLightLayer(_DirectionalLightDatas[i].lightLayers, builtinData.renderingLayers))
{
if (mainLightIndex != i)
{
if (currentIndex < i)
{
return i;
}
}
}
}
return -1; // not found
}
bool UtsUseScreenSpaceShadow(DirectionalLightData light, float3 normalWS)
{
#if defined(RAY_TRACED_SCREEN_SPACE_SHADOW_FLAG)
@@ -50,18 +31,7 @@ bool UtsUseScreenSpaceShadow(DirectionalLightData light, float3 normalWS)
return (validScreenSpaceShadow && ((rayTracedShadow && visibleLight) || !rayTracedShadow));
#else
return ((light.screenSpaceShadowIndex & SCREEN_SPACE_SHADOW_INDEX_MASK) != INVALID_SCREEN_SPACE_SHADOW);
#endif
}
bool IsNonZeroBSDF(float3 L, UtsBSDFData bsdfData)
{
#if _MATERIAL_TYPE_FACE
return true;
#else
float NdotL = dot(bsdfData.normalWS, L);
return NdotL > 0.0;
#endif
#endif
}
void UtsLightLoop(FragInputs fragInputs, PositionInputs posInput, UtsBSDFData bsdfData, BuiltinData builtinData,
@@ -99,7 +69,7 @@ void UtsLightLoop(FragInputs fragInputs, PositionInputs posInput, UtsBSDFData bs
// Is it worth sampling the shadow map?
// Should we skip it if NdotL is negative? (i.e. transmission)
if ((light.lightDimmer > 0) && (light.shadowDimmer > 0))
if ((light.lightDimmer > 0) && (light.shadowDimmer > 0) && IsNonZeroBSDF(L, bsdfData))
{
context.shadowValue = GetDirectionalShadowAttenuation(context.shadowContext,
posInput.positionSS, posInput.positionWS + L * _ShadowDistanceBias, UtsGetShadowNormal(bsdfData),

9
Runtime/Shaders/Includes/Lighting/UtsMaterialEvaluation.hlsl
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@@ -108,7 +108,7 @@ half3 FitWithCurveApprox(half NdotL, half Curvature)
return lerp(curve0, curve1, mad(oneMinusCurva2, -1.0 * oneMinusCurva2, 1.0));
}
DirectLighting UtsShadeSurface(PositionInputs posInput, UtsBSDFData bsdfData, PreLightData preLightData, SHADOW_TYPE shadow,
DirectLighting UtsShadeSurface(PositionInputs posInput, UtsBSDFData bsdfData, PreLightData preLightData, SHADOW_TYPE shadow,
float3 lightColor, float3 V, float3 L, float2 uv,
float diffuseDimmer, float specularDimmer)
{
@@ -117,7 +117,8 @@ DirectLighting UtsShadeSurface(PositionInputs posInput, UtsBSDFData bsdfData, Pr
if (Max3(lightColor.r, lightColor.g, lightColor.b) > 0.0)
{
SHADOW_TYPE sharpShadow = smoothstep(0.4, 0.6, shadow);
// SHADOW_TYPE sharpShadow = smoothstep(0.4, 0.6, shadow);
SHADOW_TYPE sharpShadow = shadow;
#if _RECEIVE_HAIR_SHADOW_ON && ENABLE_UTS_HAIR_SHAOW
sharpShadow *= GetHairShadow(posInput, L);
#endif
@@ -143,7 +144,7 @@ DirectLighting UtsShadeSurface(PositionInputs posInput, UtsBSDFData bsdfData, Pr
float NdotL = dot(bsdfData.normalWS, L);
float halfLambert = 0.5 * NdotL + 0.5;
float3 rampColor = SAMPLE_TEXTURE2D_ARRAY(_ShadingRampMap, s_linear_clamp_sampler, float2(halfLambert * shadow.x, rampMask), _ShadingIndex).rgb;
float3 rampColor = SAMPLE_TEXTURE2D_ARRAY(_ShadingRampMap, s_linear_clamp_sampler, float2(halfLambert * sharpShadow.x, rampMask), _ShadingIndex).rgb;
diffuseTerm = bsdfData.diffuseColor * rampColor * INV_PI;
specularTerm *= saturate(NdotL) * sharpShadow;
@@ -187,6 +188,8 @@ DirectLighting UtsShadeSurface(PositionInputs posInput, UtsBSDFData bsdfData, Pr
lighting.specular += rimLightLighting.specular;
}
#endif
// lighting.diffuse = sharpShadow;
}
return lighting;

4
Runtime/Shaders/Includes/Lighting/UtsShadowEvaluation.hlsl
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@@ -6,7 +6,7 @@ float3 UtsGetShadowNormal(UtsBSDFData bsdfData)
#if _MATERIAL_TYPE_FACE
return normalize(mul(UNITY_MATRIX_M, float4(0.0, 0.0, 1.0, 0.0))).xyz;
#else
return bsdfData.geomNormalWS * (1.0 + _ShadowNormalBias);
return bsdfData.normalWS * (1.0 + _ShadowNormalBias);
#endif
}
@@ -77,7 +77,7 @@ SHADOW_TYPE UtsEvaluateShadow_Punctual(LightLoopContext lightLoopContext, Positi
}
else
#endif
if ((light.shadowIndex >= 0) && (light.shadowDimmer > 0))
if ((light.shadowIndex >= 0) && (light.shadowDimmer > 0) && IsNonZeroBSDF(L, N))
{
shadow = GetPunctualShadowAttenuation(lightLoopContext.shadowContext, posInput.positionSS, posInput.positionWS + L * _ShadowDistanceBias, N, light.shadowIndex, L, distances.x, light.lightType == GPULIGHTTYPE_POINT, light.lightType != GPULIGHTTYPE_PROJECTOR_BOX);