forked from BilalY/Rasagar
71 lines
2.1 KiB
HLSL
71 lines
2.1 KiB
HLSL
|
#ifndef UNIVERSAL_COPY_DEPTH_PASS_INCLUDED
|
||
|
|
#define UNIVERSAL_COPY_DEPTH_PASS_INCLUDED
|
||
|
|
|
||
|
|
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
|
||
|
|
#include "Packages/com.unity.render-pipelines.core/Runtime/Utilities/Blit.hlsl"
|
||
|
|
|
||
|
|
#if defined(_DEPTH_MSAA_2)
|
||
|
|
#define MSAA_SAMPLES 2
|
||
|
|
#elif defined(_DEPTH_MSAA_4)
|
||
|
|
#define MSAA_SAMPLES 4
|
||
|
|
#elif defined(_DEPTH_MSAA_8)
|
||
|
|
#define MSAA_SAMPLES 8
|
||
|
|
#else
|
||
|
|
#define MSAA_SAMPLES 1
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(UNITY_STEREO_INSTANCING_ENABLED) || defined(UNITY_STEREO_MULTIVIEW_ENABLED)
|
||
|
|
#define DEPTH_TEXTURE_MS(name, samples) Texture2DMSArray<float, samples> name
|
||
|
|
#define DEPTH_TEXTURE(name) TEXTURE2D_ARRAY_FLOAT(name)
|
||
|
|
#define LOAD(uv, sampleIndex) LOAD_TEXTURE2D_ARRAY_MSAA(_CameraDepthAttachment, uv, unity_StereoEyeIndex, sampleIndex)
|
||
|
|
#define SAMPLE(uv) SAMPLE_TEXTURE2D_ARRAY(_CameraDepthAttachment, sampler_CameraDepthAttachment, uv, unity_StereoEyeIndex).r
|
||
|
|
#else
|
||
|
|
#define DEPTH_TEXTURE_MS(name, samples) Texture2DMS<float, samples> name
|
||
|
|
#define DEPTH_TEXTURE(name) TEXTURE2D_FLOAT(name)
|
||
|
|
#define LOAD(uv, sampleIndex) LOAD_TEXTURE2D_MSAA(_CameraDepthAttachment, uv, sampleIndex)
|
||
|
|
#define SAMPLE(uv) SAMPLE_DEPTH_TEXTURE(_CameraDepthAttachment, sampler_CameraDepthAttachment, uv)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if MSAA_SAMPLES == 1
|
||
|
|
DEPTH_TEXTURE(_CameraDepthAttachment);
|
||
|
|
SAMPLER(sampler_CameraDepthAttachment);
|
||
|
|
#else
|
||
|
|
DEPTH_TEXTURE_MS(_CameraDepthAttachment, MSAA_SAMPLES);
|
||
|
|
float4 _CameraDepthAttachment_TexelSize;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if UNITY_REVERSED_Z
|
||
|
|
#define DEPTH_DEFAULT_VALUE 1.0
|
||
|
|
#define DEPTH_OP min
|
||
|
|
#else
|
||
|
|
#define DEPTH_DEFAULT_VALUE 0.0
|
||
|
|
#define DEPTH_OP max
|
||
|
|
#endif
|
||
|
|
|
||
|
|
float SampleDepth(float2 uv)
|
||
|
|
{
|
||
|
|
#if MSAA_SAMPLES == 1
|
||
|
|
return SAMPLE(uv);
|
||
|
|
#else
|
||
|
|
int2 coord = int2(uv * _CameraDepthAttachment_TexelSize.zw);
|
||
|
|
float outDepth = DEPTH_DEFAULT_VALUE;
|
||
|
|
|
||
|
|
UNITY_UNROLL
|
||
|
|
for (int i = 0; i < MSAA_SAMPLES; ++i)
|
||
|
|
outDepth = DEPTH_OP(LOAD(coord, i), outDepth);
|
||
|
|
return outDepth;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(_OUTPUT_DEPTH)
|
||
|
|
float frag(Varyings input) : SV_Depth
|
||
|
|
#else
|
||
|
|
float frag(Varyings input) : SV_Target
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
|
||
|
|
return SampleDepth(input.texcoord);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|