62 lines
1.8 KiB
HLSL
62 lines
1.8 KiB
HLSL
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#ifndef TOONSKETCH_WATERLIGHTING_INCLUDED
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#define TOONSKETCH_WATERLIGHTING_INCLUDED
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TS_LightingData TS_WaterCalculateLighting(inout FragmentCommonData s, UnityLight light, UnityIndirect indirect, half atten, half2 uv)
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{
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TS_LightingData l = TS_InitLightingData(s, light, indirect, atten, uv);
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// Surface
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half perceptualRoughness = SmoothnessToPerceptualRoughness(s.smoothness);
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half roughness = PerceptualRoughnessToRoughness(perceptualRoughness);
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#ifdef UNITY_COLORSPACE_GAMMA
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half surfaceReduction = 0.28;
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#else
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half surfaceReduction = (0.6 - 0.08 * perceptualRoughness);
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#endif
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surfaceReduction = 1.0 - roughness * perceptualRoughness * surfaceReduction;
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half grazingTerm = saturate(s.smoothness + (1.0 - s.oneMinusReflectivity));
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float3 halfDir = Unity_SafeNormalize(float3(l.light.dir) + -s.eyeVec);
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float nh = DotClamped(l.normal, halfDir);
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half nv = abs(DotClamped(l.normal, -s.eyeVec));
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float lh = DotClamped(l.light.dir, halfDir);
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// Ambient
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#ifdef _TS_IGNOREINDIRECT_ON
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l.ambient = 0;
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#else
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l.ambientDiff = Luminance(l.indirect.diffuse);
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if (_Style == 0)
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l.ambientDiff = l.ambientDiff * 0.5 + 0.5;
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l.ambient = s.diffColor * l.indirect.diffuse * TS_GetRamp(l.ambientDiff);
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#endif
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// Diffuse
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l.diffuse = DotClamped(l.normal, l.light.dir);
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if (_Style == 0)
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l.diffuse = l.diffuse * 0.5 + 0.5;
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// Color
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l.color = l.ambient + s.diffColor * l.light.color * TS_GetRamp(l.diffuse);
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// Alpha/Attenuation
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l.attenuation = atten;
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l.alpha = s.alpha;
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// Output
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return l;
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}
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half4 TS_WaterShading(FragmentCommonData s, TS_LightingData l)
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{
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// Color
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half4 color;
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color.rgb = l.color;
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color.a = l.alpha;
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// Shading
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color.rgb *= TS_GetRamp(l.attenuation);
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// Alpha/Attenuation
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#ifndef UNITY_PASS_FORWARDBASE
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color *= l.attenuation;
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#if defined(_ALPHABLEND_ON) || defined(_ALPHAPREMULTIPLY_ON)
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color *= s.alpha;
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#endif
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#endif
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// Output
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return color;
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}
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#endif
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