99 lines
3.5 KiB
HLSL
99 lines
3.5 KiB
HLSL
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#ifndef POI_RIM
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#define POI_RIM
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float4 _RimLightColor;
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float _RimLightingInvert;
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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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float _ShadowMix;
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float _ShadowMixThreshold;
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float _ShadowMixWidthMod;
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float _EnableRimLighting;
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float _RimBrighten;
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float _RimLightNormal;
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float _RimHueShiftEnabled;
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float _RimHueShiftSpeed;
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float _RimHueShift;
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#ifdef POI_AUDIOLINK
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half _AudioLinkRimWidthBand;
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float2 _AudioLinkRimWidthAdd;
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half _AudioLinkRimEmissionBand;
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float2 _AudioLinkRimEmissionAdd;
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half _AudioLinkRimBrightnessBand;
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float2 _AudioLinkRimBrightnessAdd;
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#endif
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#if defined(PROP_RIMTEX) || !defined(OPTIMIZER_ENABLED)
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POI_TEXTURE_NOSAMPLER(_RimTex);
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#endif
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#if defined(PROP_RIMMASK) || !defined(OPTIMIZER_ENABLED)
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POI_TEXTURE_NOSAMPLER(_RimMask);
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#endif
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#if defined(PROP_RIMWIDTHNOISETEXTURE) || !defined(OPTIMIZER_ENABLED)
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POI_TEXTURE_NOSAMPLER(_RimWidthNoiseTexture);
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#endif
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float _RimWidthNoiseStrength;
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float4 rimColor = float4(0, 0, 0, 0);
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float rim = 0;
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void applyRimLighting(inout float4 albedo, inout float3 rimLightEmission)
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{
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#if defined(PROP_RIMWIDTHNOISETEXTURE) || !defined(OPTIMIZER_ENABLED)
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float rimNoise = POI2D_SAMPLER_PAN(_RimWidthNoiseTexture, _MainTex, poiMesh.uv[_RimWidthNoiseTextureUV], _RimWidthNoiseTexturePan);
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#else
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float rimNoise = 0;
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#endif
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rimNoise = (rimNoise - .5) * _RimWidthNoiseStrength;
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float viewDotNormal = saturate(abs(dot(poiCam.viewDir, poiMesh.normals[_RimLightNormal])));
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UNITY_BRANCH
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if (_RimLightingInvert)
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{
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viewDotNormal = 1 - viewDotNormal;
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}
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float rimStrength = _RimStrength;
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float rimBrighten = _RimBrighten;
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float rimWidth = lerp( - .05, 1, _RimWidth);
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#ifdef POI_AUDIOLINK
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UNITY_BRANCH
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if (poiMods.audioLinkTextureExists)
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{
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rimWidth = clamp(rimWidth + lerp(_AudioLinkRimWidthAdd.x, _AudioLinkRimWidthAdd.y, poiMods.audioLink[_AudioLinkRimWidthBand]), - .05, 1);
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rimStrength += lerp(_AudioLinkRimEmissionAdd.x, _AudioLinkRimEmissionAdd.y, poiMods.audioLink[_AudioLinkRimEmissionBand]);
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rimBrighten += lerp(_AudioLinkRimBrightnessAdd.x, _AudioLinkRimBrightnessAdd.y, poiMods.audioLink[_AudioLinkRimBrightnessBand]);
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}
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#endif
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rimWidth -= rimNoise;
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#if defined(PROP_RIMMASK) || !defined(OPTIMIZER_ENABLED)
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float rimMask = POI2D_SAMPLER_PAN(_RimMask, _MainTex, poiMesh.uv[_RimMaskUV], _RimMaskPan);
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#else
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float rimMask = 1;
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#endif
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#if defined(PROP_RIMTEX) || !defined(OPTIMIZER_ENABLED)
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rimColor = POI2D_SAMPLER_PAN(_RimTex, _MainTex, poiMesh.uv[_RimTexUV], _RimTexPan) * _RimLightColor;
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#else
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rimColor = _RimLightColor;
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#endif
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UNITY_BRANCH
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if (_RimHueShiftEnabled)
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{
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rimColor.rgb = hueShift(rimColor.rgb, _RimHueShift + _Time.x * _RimHueShiftSpeed);
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}
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rimWidth = max(lerp(rimWidth, rimWidth * lerp(0, 1, poiLight.lightMap - _ShadowMixThreshold) * _ShadowMixWidthMod, _ShadowMix), 0);
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rim = 1 - smoothstep(min(_RimSharpness, rimWidth), rimWidth, viewDotNormal);
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rim *= _RimLightColor.a * rimColor.a * rimMask;
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rimLightEmission = rim * lerp(albedo, rimColor, _RimLightColorBias) * rimStrength;
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albedo.rgb = lerp(albedo.rgb, lerp(albedo.rgb, rimColor, _RimLightColorBias) + lerp(albedo.rgb, rimColor, _RimLightColorBias) * rimBrighten, rim);
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}
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#endif
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