39 lines
1.4 KiB
HLSL
39 lines
1.4 KiB
HLSL
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#ifndef RIM_LIGHTING
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#define RIM_LIGHTING
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float4 _RimLightColor;
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float _RimWidth;
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float _RimStrength;
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float _RimSharpness;
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float _RimLightColorBias;
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float4 _RimTexPanSpeed;
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float _ShadowMix;
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float _ShadowMixThreshold;
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float _ShadowMixWidthMod;
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UNITY_DECLARE_TEX2D_NOSAMPLER(_RimTex); float4 _RimTex_ST;
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UNITY_DECLARE_TEX2D_NOSAMPLER(_RimMask); float4 _RimMask_ST;
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float4 rimColor = float4(0, 0, 0, 0);
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float rim = 0;
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void calculateRimLighting(float2 uv, float cameraDotVert)
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{
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float rimMask = UNITY_SAMPLE_TEX2D_SAMPLER(_RimMask, _MainTex, TRANSFORM_TEX(uv, _RimMask));
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rimColor = UNITY_SAMPLE_TEX2D_SAMPLER(_RimTex, _MainTex, TRANSFORM_TEX(uv, _RimTex) + (_Time.y * _RimTexPanSpeed.xy)) * _RimLightColor;
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_RimWidth = lerp(_RimWidth,_RimWidth * lerp(0,1,poiLight.lightMap-_ShadowMixThreshold) * _ShadowMixWidthMod,_ShadowMix);
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rim = 1-smoothstep(min(_RimSharpness,_RimWidth),_RimWidth,cameraDotVert);
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rim *= _RimLightColor.a * rimColor.a * rimMask;
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}
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void applyRimColor(inout float4 finalColor)
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{
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finalColor.rgb = lerp(finalColor.rgb, lerp(finalColor.rgb, rimColor, _RimLightColorBias), rim);
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}
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void ApplyRimEmission(inout float4 finalColor)
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{
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finalColor.rgb += rim * rimColor * _RimStrength;
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}
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#endif
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