mirror of
https://github.com/muskit/H3VR-TNH-Quality-of-Life-Improvements.git
synced 2026-06-03 04:34:26 -07:00
msk
59 lines
2.1 KiB
HLSL
59 lines
2.1 KiB
HLSL
// Alloy Physical Shader Framework
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// Copyright 2013-2017 RUST LLC.
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// http://www.alloy.rustltd.com/
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/////////////////////////////////////////////////////////////////////////////////
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/// @file ReflectionProbe.cginc
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/// @brief Deferred reflection probe pass vertex & fragment shaders.
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/////////////////////////////////////////////////////////////////////////////////
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#ifndef ALLOY_SHADERS_DEFERRED_REFLECTION_PROBE_CGINC
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#define ALLOY_SHADERS_DEFERRED_REFLECTION_PROBE_CGINC
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#define A_INDIRECT_LIGHTING_PASS
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#include "Assets/Alloy/Shaders/Framework/Deferred.cginc"
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unity_v2f_deferred aMainVertexShader(
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float4 vertex : POSITION,
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float3 normal : NORMAL)
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{
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return vert_deferred(vertex, normal);
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}
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half4 aMainFragmentShader(
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unity_v2f_deferred i) : SV_Target
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{
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UnityGIInput d;
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ASurface s = aDeferredSurface(i);
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float blendDistance = unity_SpecCube1_ProbePosition.w; // will be set to blend distance for this probe
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d.worldPos = s.positionWorld;
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d.worldViewDir = s.viewDirWorld; // ???
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d.probeHDR[0] = unity_SpecCube0_HDR;
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#ifdef UNITY_SPECCUBE_BOX_PROJECTION
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d.probePosition[0] = unity_SpecCube0_ProbePosition;
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d.boxMin[0].xyz = unity_SpecCube0_BoxMin - float4(blendDistance,blendDistance,blendDistance,0);
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d.boxMin[0].w = 1; // 1 in .w allow to disable blending in UnityGI_IndirectSpecular call
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d.boxMax[0].xyz = unity_SpecCube0_BoxMax + float4(blendDistance,blendDistance,blendDistance,0);
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#endif
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Unity_GlossyEnvironmentData g;
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AIndirect ind = aNewIndirect();
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g.roughness = s.roughness;
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g.reflUVW = s.reflectionVectorWorld;
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ind.specular = UnityGI_IndirectSpecular(d, 1.0h, g);
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// Calculate falloff value, so reflections on the edges of the probe would gradually blend to previous reflection.
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// Also this ensures that pixels not located in the reflection probe AABB won't
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// accidentally pick up reflections from this probe.
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half3 distance = aDistanceFromAabb(s.positionWorld, unity_SpecCube0_BoxMin.xyz, unity_SpecCube0_BoxMax.xyz);
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half falloff = saturate(1.0 - length(distance) / blendDistance);
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return half4(aIndirectLighting(ind, s), falloff);
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}
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#endif // ALLOY_SHADERS_DEFERRED_REFLECTION_PROBE_CGINC
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