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author | Julian Eisel <julian@blender.org> | 2022-11-10 15:17:42 +0300 |
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committer | Julian Eisel <julian@blender.org> | 2022-11-10 15:17:42 +0300 |
commit | 7246c387435769a169ac24c91434c615df6434b4 (patch) | |
tree | 61842e3e0ce85e80720fdd7476d44d2e629f59fd /source/blender/compositor/realtime_compositor/shaders/compositor_filter.glsl | |
parent | c5f55d17096d373791363e46004176e3f7f7ae52 (diff) | |
parent | 0b4bd3ddc016298e868169a541cf6c132b10c587 (diff) |
Merge branch 'master' into asset-browser-grid-viewasset-browser-grid-view
Diffstat (limited to 'source/blender/compositor/realtime_compositor/shaders/compositor_filter.glsl')
-rw-r--r-- | source/blender/compositor/realtime_compositor/shaders/compositor_filter.glsl | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/source/blender/compositor/realtime_compositor/shaders/compositor_filter.glsl b/source/blender/compositor/realtime_compositor/shaders/compositor_filter.glsl new file mode 100644 index 00000000000..e501c563dda --- /dev/null +++ b/source/blender/compositor/realtime_compositor/shaders/compositor_filter.glsl @@ -0,0 +1,20 @@ +#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl) + +void main() +{ + ivec2 texel = ivec2(gl_GlobalInvocationID.xy); + + /* Compute the dot product between the 3x3 window around the pixel and the filter kernel. */ + vec4 color = vec4(0); + for (int j = 0; j < 3; j++) { + for (int i = 0; i < 3; i++) { + color += texture_load(input_tx, texel + ivec2(i - 1, j - 1)) * kernel[j][i]; + } + } + + /* Mix with the original color at the center of the kernel using the input factor. */ + color = mix(texture_load(input_tx, texel), color, texture_load(factor_tx, texel).x); + + /* Store the color making sure it is not negative. */ + imageStore(output_img, texel, max(color, 0.0)); +} |