procedural-3d-engine/data/shaders/hlsl/ssao/blur.frag
Ben Clayton ca884587a4 Move shaders into glsl and hlsl directories
Move `data/shaders` to `data/shaders/glsl`
Move `data/hlsl` to `data/shaders/hlsl`

Fix up shader paths in the cpp files to point to the new glsl location.

`data/shaders/hlsl/compile.py` still overwrites the glsl .spv files (for
now).

Issue: #723
2020-06-01 12:22:28 +01:00

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611 B
GLSL

// Copyright 2020 Google LLC
Texture2D textureSSAO : register(t0);
SamplerState samplerSSAO : register(s0);
float4 main([[vk::location(0)]] float2 inUV : TEXCOORD0) : SV_TARGET
{
const int blurRange = 2;
int n = 0;
int2 texDim;
textureSSAO.GetDimensions(texDim.x, texDim.y);
float2 texelSize = 1.0 / (float2)texDim;
float result = 0.0;
for (int x = -blurRange; x < blurRange; x++)
{
for (int y = -blurRange; y < blurRange; y++)
{
float2 offset = float2(float(x), float(y)) * texelSize;
result += textureSSAO.Sample(samplerSSAO, inUV + offset).r;
n++;
}
}
return result / (float(n));
}