From f1517709556827fb8b7bab00bdee4a9794d88dd1 Mon Sep 17 00:00:00 2001 From: hachem Date: Wed, 13 Aug 2025 18:20:54 +0200 Subject: [add]: Compute shaders and Compute Textures --- assets/ImageProcessing.glsl | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 assets/ImageProcessing.glsl (limited to 'assets/ImageProcessing.glsl') diff --git a/assets/ImageProcessing.glsl b/assets/ImageProcessing.glsl new file mode 100644 index 0000000..3a05425 --- /dev/null +++ b/assets/ImageProcessing.glsl @@ -0,0 +1,31 @@ +#type compute +#version 430 core + +layout(local_size_x = 16, local_size_y = 16) in; + +layout(binding = 0) uniform sampler2D u_InputTexture; +layout(binding = 1, rgba8) uniform image2D u_OutputTexture; + +uniform vec2 u_TextureSize; +uniform float u_Brightness; +uniform float u_Contrast; +uniform float u_Saturation; + +void main() +{ + ivec2 pixelCoord = ivec2(gl_GlobalInvocationID.xy); + + if (pixelCoord.x >= int(u_TextureSize.x) || pixelCoord.y >= int(u_TextureSize.y)) + return; + + vec2 texCoord = (vec2(pixelCoord) + 0.5) / u_TextureSize; + vec4 color = texture(u_InputTexture, texCoord); + + color.rgb = (color.rgb - 0.5) * u_Contrast + 0.5 + u_Brightness; + + float luminance = dot(color.rgb, vec3(0.299, 0.587, 0.114)); + color.rgb = mix(vec3(luminance), color.rgb, u_Saturation); + color.rgb = clamp(color.rgb, 0.0, 1.0); + + imageStore(u_OutputTexture, pixelCoord, color); +} -- cgit v1.3