45 lines
2.1 KiB
HLSL
45 lines
2.1 KiB
HLSL
// SPDX-License-Identifier: (Not available for this version, you are only allowed to use this software if you have express permission from the copyright holder and agreed to the latest NiloToonURP EULA)
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// Copyright (c) 2021 Kuroneko ShaderLab Limited
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// For more information, visit -> https://github.com/ColinLeung-NiloCat/UnityURPToonLitShaderExample
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// #pragma once is a safe guard best practice in almost every .hlsl,
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// doing this can make sure your .hlsl's user can include this .hlsl anywhere anytime without producing any multi include conflict
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#pragma once
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// NOTE: This file requires NiloScaledScreenParamUtil.hlsl to be included before it
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// because it uses GetScaledScreenWidthHeight() function
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TEXTURE2D_X(_NiloToonPrepassBufferTex);
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SAMPLER(sampler_NiloToonPrepassBufferTex);
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// core functions
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Sample with UV coordinates (0-1 range)
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half4 SampleNiloToonPrepassColor(float2 uv)
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{
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return SAMPLE_TEXTURE2D_X(_NiloToonPrepassBufferTex, sampler_NiloToonPrepassBufferTex, UnityStereoTransformScreenSpaceTex(uv));
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}
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// Load with pixel coordinates
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half4 LoadNiloToonPrepassColor(uint2 uv)
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{
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return LOAD_TEXTURE2D_X(_NiloToonPrepassBufferTex, uv);
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// high level helper functions
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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half4 LoadNiloToonPrepassColorSafe(int2 loadTexPos)
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{
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// clamp loadTexPos to prevent loading outside of _CameraDepthTexture's valid area
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loadTexPos.x = max(loadTexPos.x,0);
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loadTexPos.y = max(loadTexPos.y,0);
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loadTexPos = min(loadTexPos,GetScaledScreenWidthHeight()-1);
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return LoadNiloToonPrepassColor(loadTexPos);
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}
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