| #version 440 |
| |
| layout (local_size_x = 16, local_size_y = 16) in; |
| |
| layout(std140, binding = 0) uniform UniformBuffer |
| { |
| float factor; |
| } ubuf; |
| |
| layout (binding = 1, rgba8) uniform readonly image2D texIn; |
| layout (binding = 2, rgba8) uniform writeonly image2D texOut; |
| |
| void main() |
| { |
| ivec2 pos = ivec2(gl_GlobalInvocationID.xy); |
| ivec2 d = ivec2(1, 1); |
| vec4 diff = imageLoad(texIn, pos + d) - imageLoad(texIn, pos - d); |
| float c = (diff.x + diff.y + diff.z) / ubuf.factor + 0.5f; |
| imageStore(texOut, pos, vec4(c, c, c, 1.0)); |
| } |
