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Add missing (shader) code to finalize support for enabling/disabling …
…triplanar mapping on HLMS Terra detail maps
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175 changes: 175 additions & 0 deletions
175
Samples/Media/Hlms/Terra/Any/DetailTriplanar_piece_ps.any
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,175 @@ | ||
| @piece( DeclDetailTriplanarFuncs ) | ||
| @property( detail_triplanar ) | ||
| // https://catlikecoding.com/unity/tutorials/advanced-rendering/triplanar-mapping/ | ||
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| // Side view projection | ||
| midf2 GetTriplanarUVSd( midf3 position, midf3 normal ) | ||
| { | ||
| midf2 uv = -position.zy; | ||
|
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| if( normal.x < _h( 0.0 ) ) | ||
| { | ||
| uv.x = -uv.x; | ||
| } | ||
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| return uv; | ||
| } | ||
|
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| // Top view projection | ||
| midf2 GetTriplanarUVTp( midf3 position, midf3 normal ) | ||
| { | ||
| return position.xz; | ||
| } | ||
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| // Front view projection | ||
| midf2 GetTriplanarUVFr( midf3 position, midf3 normal ) | ||
| { | ||
| midf2 uv = -position.xy; | ||
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| if( normal.z >= _h( 0.0 ) ) | ||
| { | ||
| uv.x = -uv.x; | ||
| } | ||
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| return uv; | ||
| } | ||
| @end | ||
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| @property( detail_triplanar_diffuse ) | ||
| @foreach( detail_maps_diffuse, n )@property( detail_map@n ) | ||
| #define SampleDetailCol@nTriplanar( tex, sampler, uv, arrayIdx ) SampleDetailCol@n( tex, \ | ||
| sampler, \ | ||
| UV_DETAIL@n( GetTriplanarUVSd( inPs.worldPos, pixelData.normal )@insertpiece( offsetDetail@n ) ), \ | ||
| arrayIdx ) * triplanarBlend.x + \ | ||
| \ | ||
| SampleDetailCol@n( tex, \ | ||
| sampler, \ | ||
| UV_DETAIL@n( GetTriplanarUVTp( inPs.worldPos, pixelData.normal )@insertpiece( offsetDetail@n ) ), \ | ||
| arrayIdx ) * triplanarBlend.y + \ | ||
| \ | ||
| SampleDetailCol@n( tex, \ | ||
| sampler, \ | ||
| UV_DETAIL@n( GetTriplanarUVFr( inPs.worldPos, pixelData.normal )@insertpiece( offsetDetail@n ) ), \ | ||
| arrayIdx ) * triplanarBlend.z | ||
| @end @end | ||
| @end | ||
|
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||
| @property( detail_triplanar_normal ) | ||
| // https://catlikecoding.com/unity/tutorials/advanced-rendering/triplanar-mapping/ | ||
| midf3 BlendTriplanarNormal( midf3 mappedNormal, midf3 surfaceNormal ) | ||
| { | ||
| midf3 n; | ||
| n.xy = mappedNormal.xy + surfaceNormal.xy; | ||
| n.z = mappedNormal.z * surfaceNormal.z; | ||
| return n; | ||
| } | ||
|
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||
| @foreach( detail_maps_normal, n )@property( detail_map_nm@n ) | ||
| #define SampleDetailMapNm@nSd( tex, sampler, uv, arrayIdx ) SampleDetailMapNm@nSdFn( tex, sampler, uv, arrayIdx, detailWeights, pixelData.normal ) | ||
| #define SampleDetailMapNm@nTp( tex, sampler, uv, arrayIdx ) SampleDetailMapNm@nTpFn( tex, sampler, uv, arrayIdx, detailWeights, pixelData.normal ) | ||
| #define SampleDetailMapNm@nFr( tex, sampler, uv, arrayIdx ) SampleDetailMapNm@nFrFn( tex, sampler, uv, arrayIdx, detailWeights, pixelData.normal ) | ||
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| // Side view projection | ||
| midf3 SampleDetailMapNm@nSdFn( Texture2DArray tex, SamplerState smp, midf2 uv, uint arrayIdx, midf4 weights, midf3 normal ) | ||
| { | ||
| midf3 tangentNormal = getTSNormal( tex, smp, uv, arrayIdx ) * weights.@insertpiece( detail_swizzle@n ); | ||
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| if( normal.x >= _h( 0.0 ) ) | ||
| { | ||
| tangentNormal.x = -tangentNormal.x; | ||
| } | ||
|
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| midf3 worldNormal = BlendTriplanarNormal( tangentNormal, normal.zyx ).zyx; | ||
| worldNormal.x += _h( 1.0 ) - weights.@insertpiece( detail_swizzle@n ); | ||
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| return worldNormal; | ||
| } | ||
|
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| // Top view projection | ||
| midf3 SampleDetailMapNm@nTpFn( Texture2DArray tex, SamplerState smp, midf2 uv, uint arrayIdx, midf4 weights, midf3 normal ) | ||
| { | ||
| midf3 tangentNormal = getTSNormal( tex, smp, uv, arrayIdx ) * weights.@insertpiece( detail_swizzle@n ); | ||
| tangentNormal.y = -tangentNormal.y; | ||
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| midf3 worldNormal = BlendTriplanarNormal( tangentNormal, normal.xzy ).xzy; | ||
| worldNormal.y += _h( 1.0 ) - weights.@insertpiece( detail_swizzle@n ); | ||
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| return worldNormal; | ||
| } | ||
|
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| // Front view projection | ||
| midf3 SampleDetailMapNm@nFrFn( Texture2DArray tex, SamplerState smp, midf2 uv, uint arrayIdx, midf4 weights, midf3 normal ) | ||
| { | ||
| midf3 tangentNormal = getTSNormal( tex, smp, uv, arrayIdx ) * weights.@insertpiece( detail_swizzle@n ); | ||
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| if( normal.z < _h( 0.0 ) ) | ||
| { | ||
| tangentNormal.x = -tangentNormal.x; | ||
| } | ||
|
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| midf3 worldNormal = BlendTriplanarNormal( tangentNormal, normal ); | ||
| worldNormal.z += _h( 1.0 ) - weights.@insertpiece( detail_swizzle@n ); | ||
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| return worldNormal; | ||
| } | ||
| @end @end | ||
| @end | ||
|
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| @property( detail_triplanar_roughness ) | ||
| @foreach( 4, n )@property( roughness_map@n ) | ||
| #define SampleRoughness@nTriplanar( tex, sampler, uv, arrayIdx ) SampleRoughness@n( tex, \ | ||
| sampler, \ | ||
| GetTriplanarUVSd( inPs.worldPos, pixelData.normal )@insertpiece( offsetDetail@n ), \ | ||
| arrayIdx ) * triplanarBlend.x + \ | ||
| \ | ||
| SampleRoughness@n( tex, \ | ||
| sampler, \ | ||
| GetTriplanarUVTp( inPs.worldPos, pixelData.normal )@insertpiece( offsetDetail@n ), \ | ||
| arrayIdx ) * triplanarBlend.y + \ | ||
| \ | ||
| SampleRoughness@n( tex, \ | ||
| sampler, \ | ||
| GetTriplanarUVFr( inPs.worldPos, pixelData.normal )@insertpiece( offsetDetail@n ), \ | ||
| arrayIdx ) * triplanarBlend.z | ||
| @end @end | ||
| @end | ||
|
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| @property( detail_triplanar_metalness ) | ||
| @foreach( 4, n )@property( metalness_map@n ) | ||
| #define SampleMetalness@nTriplanar( tex, sampler, uv, arrayIdx ) SampleMetalness@n( tex, \ | ||
| sampler, \ | ||
| GetTriplanarUVSd( inPs.worldPos, pixelData.normal )@insertpiece( offsetDetail@n ), \ | ||
| arrayIdx ) * triplanarBlend.x + \ | ||
| \ | ||
| SampleMetalness@n( tex, \ | ||
| sampler, \ | ||
| GetTriplanarUVTp( inPs.worldPos, pixelData.normal )@insertpiece( offsetDetail@n ), \ | ||
| arrayIdx ) * triplanarBlend.y + \ | ||
| \ | ||
| SampleMetalness@n( tex, \ | ||
| sampler, \ | ||
| GetTriplanarUVFr( inPs.worldPos, pixelData.normal )@insertpiece( offsetDetail@n ), \ | ||
| arrayIdx ) * triplanarBlend.z | ||
| @end @end | ||
| @end | ||
| @end | ||
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| @piece( SampleAndApplyDetailNormalMapsTriplanar ) | ||
| @foreach( detail_maps_normal, n )@property( detail_map_nm@n ) | ||
| pixelData.normal = SampleDetailMapNm@nSd( textureMaps@value( detail_map_nm@n_idx ), | ||
| samplerState@value( detail_map_nm@n_sampler ), | ||
| UV_DETAIL_NM@n( GetTriplanarUVSd( inPs.worldPos, pixelData.normal )@insertpiece( offsetDetail@n ) ), | ||
| texIndex_detailNormMapIdx@n ) * triplanarBlend.x + | ||
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| SampleDetailMapNm@nTp( textureMaps@value( detail_map_nm@n_idx ), | ||
| samplerState@value( detail_map_nm@n_sampler ), | ||
| UV_DETAIL_NM@n( GetTriplanarUVTp( inPs.worldPos, pixelData.normal )@insertpiece( offsetDetail@n ) ), | ||
| texIndex_detailNormMapIdx@n ) * triplanarBlend.y + | ||
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| SampleDetailMapNm@nFr( textureMaps@value( detail_map_nm@n_idx ), | ||
| samplerState@value( detail_map_nm@n_sampler ), | ||
| UV_DETAIL_NM@n( GetTriplanarUVFr( inPs.worldPos, pixelData.normal )@insertpiece( offsetDetail@n ) ), | ||
| texIndex_detailNormMapIdx@n ) * triplanarBlend.z; | ||
| @end @end | ||
| @end |