mirror of
https://github.com/muskit/H3VR-TNH-Quality-of-Life-Improvements.git
synced 2026-06-02 20:24:26 -07:00
msk
109 lines
3.0 KiB
HLSL
109 lines
3.0 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 Eyeball.cginc
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/// @brief Eyeball surface shader definition.
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/////////////////////////////////////////////////////////////////////////////////
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#ifndef ALLOY_LEGACY_SHADERS_DEFINITION_EYEBALL_CGINC
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#define ALLOY_LEGACY_SHADERS_DEFINITION_EYEBALL_CGINC
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#define A_NORMAL_MAPPING_ON
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#define A_AMBIENT_OCCLUSION_ON
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#define A_SPECULAR_TINT_ON
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#define A_CLEARCOAT_ON
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#define A_EYE_PARALLAX_REFRACTION
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#define A_DETAIL_MASK_OFF
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#include "Assets/Alloy/Shaders/Lighting/Standard.cginc"
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#include "Assets/Alloy/Shaders/Type/Standard.cginc"
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#include "Assets/Alloy/Legacy/Shaders/Feature/EyeParallax.cginc"
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/// Cornea normals.
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/// Expects a compressed normal map.
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sampler2D _EyeBumpMap;
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/// Cornea weight.
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/// Expects values in the range [0,1].
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half _EyeCorneaWeight;
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/// Cornea roughness.
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/// Expects values in the range [0,1].
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half _EyeRoughness;
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/// Schlera tint color.
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/// Expects a linear LDR color.
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half3 _EyeScleraColor;
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/// Iris tint color.
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/// Expects a linear LDR color.
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half3 _EyeColor;
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/// Iris specular tint by base color.
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/// Expects values in the range [0,1].
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half _EyeSpecularTint;
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/// Samples and scales the base bump map.
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/// @param s Material surface data.
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/// @param scale Normal XY scale factor.
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/// @return Normalized tangent-space normal.
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half3 aSampleBumpScaleOld(
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ASurface s,
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half scale)
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{
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half4 result = 0.0h;
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#ifdef _VIRTUALTEXTURING_ON
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result = VTSampleNormal(s.baseVirtualCoord);
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#else
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result = tex2D(_BumpMap, s.baseUv);
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#endif
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return UnpackScaleNormal(result, _BumpScale * scale);
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}
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void aSurfaceShader(
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inout ASurface s)
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{
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float4 uv01 = s.uv01;
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aEyeParallax(s);
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aDissolve(s);
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// Iris
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half4 base = aBase(s);
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half4 material = aSampleMaterial(s);
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half irisMask = material.A_METALLIC_CHANNEL;
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s.baseColor = base.rgb * lerp(_EyeScleraColor, _EyeColor, irisMask);
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s.metallic = 0.0h;
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s.ambientOcclusion = aLerpOneTo(material.A_AO_CHANNEL, _Occlusion);
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s.specularity = _Specularity * material.A_SPECULARITY_CHANNEL;
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s.specularTint = _EyeSpecularTint * irisMask;
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s.roughness = _Roughness * material.A_ROUGHNESS_CHANNEL;
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// Cornea
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half bumpMask = s.clearCoat * 0.95h;
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half3 corneaNormalTangent = UnpackScaleNormal(tex2D(_EyeBumpMap, s.baseUv), bumpMask);
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half3 irisScleraNormalTangent = aSampleBumpScaleOld(s, 1.0h - bumpMask);
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s.clearCoat = _EyeCorneaWeight * irisMask;
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s.clearCoatRoughness = _EyeRoughness;
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s.normalTangent = A_NT(s, BlendNormals(irisScleraNormalTangent, corneaNormalTangent));
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s.mask = 1.0h - irisMask;
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aDetail(s);
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s.mask = 1.0h;
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aEmission(s);
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// Remove parallax so these appears on top of the cornea!
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s.uv01 = uv01;
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aDecal(s);
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aRim(s);
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}
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#endif // ALLOY_LEGACY_SHADERS_DEFINITION_EYEBALL_CGINC
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