63 lines
1.6 KiB
GLSL
63 lines
1.6 KiB
GLSL
// Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
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#include "./Flax/Common.hlsl"
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META_CB_BEGIN(0, Data)
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float4x4 ViewProjection;
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float3 Padding;
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bool EnableDepthTest;
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META_CB_END
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struct VS2PS
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{
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float4 Position : SV_Position;
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float4 Color : TEXCOORD0;
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};
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Texture2D SceneDepthTexture : register(t0);
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META_VS(true, FEATURE_LEVEL_ES2)
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META_VS_IN_ELEMENT(POSITION, 0, R32G32B32_FLOAT, 0, ALIGN, PER_VERTEX, 0, true)
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META_VS_IN_ELEMENT(COLOR, 0, R8G8B8A8_UNORM, 0, ALIGN, PER_VERTEX, 0, true)
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VS2PS VS(float3 Position : POSITION, float4 Color : COLOR)
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{
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VS2PS output;
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output.Position = mul(float4(Position, 1), ViewProjection);
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output.Color = Color;
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return output;
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}
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void PerformDepthTest(float4 svPosition)
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{
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// Depth test manually if compositing editor primitives
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FLATTEN
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if (EnableDepthTest)
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{
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float sceneDepthDeviceZ = SceneDepthTexture.Load(int3(svPosition.xy, 0)).r;
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float interpolatedDeviceZ = svPosition.z;
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clip(sceneDepthDeviceZ - interpolatedDeviceZ);
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}
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}
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float4 PerformFakeLighting(float4 svPosition, float4 c)
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{
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// Reconstruct view normal and calculate faked lighting
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float depth = svPosition.z * 10000;
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float3 n = normalize(float3(-ddx(depth), -ddy(depth), 1.0f));
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c.rgb *= saturate(abs(dot(n, float3(0, 1, 0))) + 0.5f);
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return c;
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}
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META_PS(true, FEATURE_LEVEL_ES2)
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float4 PS(VS2PS input) : SV_Target
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{
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return PerformFakeLighting(input.Position, input.Color);
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}
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META_PS(true, FEATURE_LEVEL_ES2)
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float4 PS_DepthTest(VS2PS input) : SV_Target
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{
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PerformDepthTest(input.Position);
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return PerformFakeLighting(input.Position, input.Color);
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}
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