69 lines
1.6 KiB
HLSL
69 lines
1.6 KiB
HLSL
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// Crest Ocean System
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// Copyright 2022 Wave Harmonic Ltd
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#if _MASK_MASKED
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#ifndef SHADERGRAPH_PREVIEW
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TEXTURE2D_X(_CrestWaterVolumeFrontFaceTexture);
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SAMPLER(sampler_CrestWaterVolumeFrontFaceTexture);
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TEXTURE2D_X(_CrestWaterVolumeBackFaceTexture);
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SAMPLER(sampler_CrestWaterVolumeBackFaceTexture);
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TEXTURE2D_X(_CrestOceanMaskTexture);
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SAMPLER(sampler_CrestOceanMaskTexture);
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#endif
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#endif
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#if _MASK_FILL
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#ifndef SHADERGRAPH_PREVIEW
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TEXTURE2D_X(_FillTexture);
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SAMPLER(sampler_FillTexture);
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#endif
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#endif
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void ClipMasked_float(const float4 i_screenPosition, out bool io_clipped)
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{
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float2 positionNDC = i_screenPosition.xy / i_screenPosition.w;
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float deviceDepth = i_screenPosition.z / i_screenPosition.w;
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io_clipped = false;
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#if _MASK_MASKED
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#ifndef SHADERGRAPH_PREVIEW
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float rawFrontFaceZ = SAMPLE_TEXTURE2D_X(_CrestWaterVolumeFrontFaceTexture, sampler_CrestWaterVolumeFrontFaceTexture, positionNDC).r;
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#endif
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if (rawFrontFaceZ > 0.0 && rawFrontFaceZ < deviceDepth)
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{
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io_clipped = true;
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return;
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}
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#ifndef SHADERGRAPH_PREVIEW
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float rawBackFaceZ = SAMPLE_TEXTURE2D_X(_CrestWaterVolumeBackFaceTexture, sampler_CrestWaterVolumeBackFaceTexture, positionNDC).r;
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#endif
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if (rawBackFaceZ > 0.0 && rawBackFaceZ > deviceDepth)
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{
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io_clipped = true;
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return;
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}
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#ifndef SHADERGRAPH_PREVIEW
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float mask = SAMPLE_TEXTURE2D_X(_CrestOceanMaskTexture, sampler_CrestOceanMaskTexture, positionNDC).r;
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#endif
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if (mask == 0.0)
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{
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io_clipped = true;
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return;
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}
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#endif // _MASK_MASKED
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#if _MASK_FILL
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#ifndef SHADERGRAPH_PREVIEW
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if (SAMPLE_TEXTURE2D_X(_FillTexture, sampler_FillTexture, positionNDC).r == 0.0)
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#endif
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{
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io_clipped = true;
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return;
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}
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#endif // _MASK_FILL
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}
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