71 lines
2.5 KiB
HLSL
71 lines
2.5 KiB
HLSL
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#ifndef PANOSPHERE
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#define PANOSPHERE
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sampler2D _PanosphereTexture; float4 _PanosphereTexture_ST;
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POI_TEXTURE_NOSAMPLER(_PanoMask);
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float _PanoEmission;
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float _PanoBlend;
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float4 _PanosphereColor;
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float3 _PanospherePan;
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float _PanoToggle;
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float _PanoCubeMapToggle;
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float _PanoInfiniteStereoToggle;
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samplerCUBE _PanoCubeMap; half4 _PanoCubeMap_HDR;
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float3 panoColor;
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float panoMask;
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float2 projectIt(float3 coords)
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{
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float3 normalizedCoords = normalize(coords);
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float latitude = acos(normalizedCoords.y);
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float longitude = atan2(normalizedCoords.z, normalizedCoords.x);
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float2 sphereCoords = float2(longitude + _Time.y * _PanospherePan.x, latitude + _Time.y * _PanospherePan.y) * float2(1.0 / UNITY_PI, 1.0 / UNITY_PI);
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sphereCoords = float2(1.0, 1.0) - sphereCoords;
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return(sphereCoords + float4(0, 1 - unity_StereoEyeIndex, 1, 1.0).xy) * float4(0, 1 - unity_StereoEyeIndex, 1, 1.0).zw;
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}
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void calculatePanosphere()
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{
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panoMask = POI2D_SAMPLER_PAN(_PanoMask, _MainTex, poiMesh.uv[_PanoMaskUV], _PanoMaskPan);
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#ifdef POI_BLACKLIGHT
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if (_BlackLightMaskPanosphere != 4)
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{
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panoMask *= blackLightMask[_BlackLightMaskPanosphere];
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}
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#endif
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UNITY_BRANCH
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if(_PanoCubeMapToggle)
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{
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float3 cubeUV = mul(poiRotationMatrixFromAngles(_PanospherePan.xyz * _Time.y), float4(-poiCam.viewDir, 1));
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half4 cubemap = texCUBE(_PanoCubeMap, cubeUV);
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panoColor = DecodeHDR(cubemap, _PanoCubeMap_HDR);
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}
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else
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{
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float2 uv = projectIt(normalize(lerp(getCameraPosition().xyz, poiCam.worldPos.xyz, _PanoInfiniteStereoToggle) - poiMesh.worldPos.xyz) * - 1);
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float2 ddxuv = ddx(uv);
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float2 ddyuv = ddy(uv);
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if(any(fwidth(uv) > .5))
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{
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ddxuv = ddyuv = 0.001;
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}
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panoColor = tex2D(_PanosphereTexture, TRANSFORM_TEX(uv, _PanosphereTexture), ddxuv, ddyuv).rgb * _PanosphereColor.rgb;
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}
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}
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void applyPanosphereColor(inout float4 finalColor)
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{
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finalColor.rgb = lerp(finalColor.rgb, panoColor, _PanoBlend * panoMask);
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}
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void applyPanosphereEmission(inout float3 finalEmission)
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{
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finalEmission += panoColor * _PanoBlend * panoMask * _PanoEmission;
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}
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#endif
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