24 lines
590 B
Plaintext
24 lines
590 B
Plaintext
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#version 430
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layout (location = 1) uniform float t;
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// size of local work group - 1 pixel
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layout(local_size_x = 1, local_size_y = 1) in;
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// rgba32f defines internal format, image2d for random write to output texture
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layout(rgba32f, binding = 0) uniform image2D img_output;
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void main()
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{
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// base pixel colour for the image
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vec4 pixel = vec4(1.0, t, 0.0, 1.0);
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// get index in global work group ie xy position
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ivec2 pixel_coords = ivec2(gl_GlobalInvocationID.xy);
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//
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// output to a specific pixel in the image
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imageStore(img_output, pixel_coords, pixel);
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}
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