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void InitializeInputData(Varyings input, out WaterInputData inputData, float2 screenUV) |
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{ |
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float3 depth = WaterDepth(input.positionWS, input.additionalData, screenUV);// TODO - hardcoded shore depth UVs |
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// Sample water FX texture |
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inputData.waterFX = WaterFX(input.preWaveSP.xy); |
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// Detail waves |
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DetailNormals(inputData.normalWS, input.uv, inputData.waterFX, depth); |
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inputData.reflectionUV = 0; |
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half2 distortion = DistortionUVs(depth.x, inputData.normalWS); |
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distortion = screenUV.xy + distortion;// * clamp(depth.x, 0, 5); |
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float d = depth.x; |
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depth.xz = AdjustedDepth(distortion, input.additionalData); // only x y |
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distortion = depth.x < 0 ? screenUV.xy : distortion; |
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inputData.refractionUV = distortion; |
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depth.x = depth.x < 0 ? d : depth.x; |
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// Sample water FX texture |
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inputData.waterFX = WaterFX(input.preWaveSP.xy); |
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inputData.depth = 0; |
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inputData.refractionUV = DistortionUVs(inputData.depth, inputData.normalWS); |
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inputData.depth = depth.x; |
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inputData.reflectionUV = 0; |
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void InitializeSurfaceData(WaterInputData input, out WaterSurfaceData surfaceData) |
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void InitializeSurfaceData(inout WaterInputData input, out WaterSurfaceData surfaceData) |
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// Detail waves |
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DetailNormals(input.normalWS, input.detailUV, input.waterFX, input.depth); |
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surfaceData.normalWS = 0; |
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/* |
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// Foam |
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half3 foamMap = SAMPLE_TEXTURE2D(_FoamMap, sampler_FoamMap, IN.uv.zw).rgb; //r=thick, g=medium, b=light |
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surfaceData.foam = 0; |
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} |
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float3 WaterShading(WaterInputData input, WaterSurfaceData surfaceData, float2 screenUV) |
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float3 WaterShading(WaterInputData input, WaterSurfaceData surfaceData, float4 additionalData, float2 screenUV) |
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{ |
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// Lighting |
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Light mainLight = GetMainLight(TransformWorldToShadowCoord(input.positionWS)); |
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// SSS |
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half3 directLighting = dot(mainLight.direction, half3(0, 1, 0)) * mainLight.color; |
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//directLighting += saturate(pow(dot(input.viewDirectionWS.xyz, -mainLight.direction) * IN.additionalData.z, 3)) * 5 * mainLight.color; |
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//half3 sss = directLighting * shadow + GI; |
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directLighting += saturate(pow(dot(input.viewDirectionWS.xyz, -mainLight.direction) * additionalData.z, 3)) * 5 * mainLight.color; |
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half3 spec = DirectBDRF(brdfData, input.normalWS, mainLight.direction, input.viewDirectionWS);// * shadow * mainLight.color; |
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half3 spec = DirectBDRF(brdfData, input.normalWS, mainLight.direction, input.viewDirectionWS) * mainLight.color * shadow; |
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half3 sss = 0; |
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half3 sss = directLighting * shadow + GI; |
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sss *= Scattering(input.depth); |
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// Reflections |
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// Do compositing |
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half3 output = lerp(lerp(refraction, reflection, fresnelTerm) + sss + spec, surfaceData.foam, surfaceData.foamMask); |
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//return refraction; |
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return MixFog(output, input.fogCoord); |
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} |
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WaterSurfaceData surfaceData; |
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InitializeSurfaceData(inputData, surfaceData); |
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half4 color; |
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color.a = 1; |
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color.rgb = WaterShading(inputData, surfaceData, screenUV.xy); |
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half4 current; |
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current.a = 1; |
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current.rgb = WaterShading(inputData, surfaceData, IN.additionalData, screenUV.xy); |
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//return color; |
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float3 camPos = GetCameraPositionWS(); |
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camPos.y = 0; |
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float alpha = 1 - saturate((distance(IN.positionWS, camPos) - 50) * 1); |
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//return half4(IN.additionalData.www, alpha); |
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half3 old = comp; |
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half fiftyfifty = round(screenUV.x); |
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return half4(lerp(old, current.rgb, fiftyfifty), alpha); |
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#if defined(_DEBUG_FOAM) |
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return half4(foamMask.xxx, 1); |
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André McGrail
4 年前