mirror of
https://github.com/muskit/H3VR-TNH-Quality-of-Life-Improvements.git
synced 2026-06-02 20:24:26 -07:00
msk
106 lines
3.0 KiB
HLSL
Vendored
106 lines
3.0 KiB
HLSL
Vendored
// 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 SpeedTree.cginc
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/// @brief SpeedTree standard material properties.
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/////////////////////////////////////////////////////////////////////////////////
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#ifndef ALLOY_SHADERS_FEATURE_SPEED_TREE_CGINC
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#define ALLOY_SHADERS_FEATURE_SPEED_TREE_CGINC
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#ifdef A_SPEED_TREE_ON
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// NOTE: AO on/off determined by matching SpeedTree(Billboard) Model.
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#if defined(GEOM_TYPE_FROND) || defined(GEOM_TYPE_LEAF) || defined(GEOM_TYPE_FACING_LEAF)
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#ifndef _ALPHATEST_ON
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#define _ALPHATEST_ON
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#endif
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#ifndef A_TWO_SIDED_SHADER
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#define A_TWO_SIDED_SHADER
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#endif
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#ifndef A_SUBSURFACE_ON
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#define A_SUBSURFACE_ON
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#endif
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#endif
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#endif
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#include "Assets/Alloy/Shaders/Framework/Feature.cginc"
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#ifdef A_SPEED_TREE_ON
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#ifdef GEOM_TYPE_BRANCH_DETAIL
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sampler2D _DetailTex;
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sampler2D _DetailNormalMap;
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#endif
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#ifdef EFFECT_HUE_VARIATION
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half4 _HueVariation;
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#endif
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#ifdef A_SUBSURFACE_ON
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/// Transmission tint color.
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/// Expects a linear LDR color.
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half3 _TransColor;
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/// Transmission color * thickness texture.
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/// Expects an RGB map with sRGB sampling.
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sampler2D _TransTex;
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/// Weight of the transmission effect.
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/// Expects gamma-space values in the range [0,1].
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half _TransScale;
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#endif
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#endif
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void aSpeedTree(
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inout ASurface s)
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{
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#ifdef A_SPEED_TREE_ON
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half4 base = aSampleBase(s);
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s.baseColor = base.rgb;
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s.opacity = _Color.a * base.a;
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aCutout(s);
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// AO content depends on matching Model header.
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s.ambientOcclusion = s.vertexColor.r;
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s.normalTangent = A_NT(s, aSampleBump(s));
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#ifdef A_SUBSURFACE_ON
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s.subsurface = A_SS(s, _TransScale * tex2D(_TransTex, s.baseUv).a);
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s.subsurfaceColor *= _TransColor;
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#endif
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#ifdef GEOM_TYPE_BRANCH_DETAIL
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half4 detailColor = tex2D(_DetailTex, s.uv01.zw);
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half weight = s.vertexColor.g < 2.0f ? saturate(s.vertexColor.g) : detailColor.a;
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s.baseColor = lerp(s.baseColor, detailColor.rgb, weight);
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half3 detailNormals = UnpackScaleNormal(tex2D(_DetailNormalMap, s.uv01.zw), weight);
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s.normalTangent = A_NT(s, BlendNormals(s.normalTangent, detailNormals));
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#endif
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#ifdef EFFECT_HUE_VARIATION
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half3 shiftedColor = lerp(s.baseColor, _HueVariation.rgb, s.vertexColor.b);
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half maxBase = max(s.baseColor.r, max(s.baseColor.g, s.baseColor.b));
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half newMaxBase = max(shiftedColor.r, max(shiftedColor.g, shiftedColor.b));
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maxBase /= newMaxBase;
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maxBase = maxBase * 0.5f + 0.5f;
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// preserve vibrance
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shiftedColor.rgb *= maxBase;
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s.baseColor = saturate(shiftedColor);
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#endif
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s.baseColor *= _Color.rgb;
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#endif
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}
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#endif // ALLOY_SHADERS_FEATURE_SPEED_TREE_CGINC
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