//
// This maps [0.0,1.0] to [-0.25,1.25], ie. extends the patch by 25% in
// all directions.
- vec2 grown_pos = (position * 1.5) - vec2(0.25, 0.25);
+ vec2 grown_pos = (position * 1.5) - 0.25;
image_pos = patch_spacing * ivec2(patch_x, patch_y) + patch_size * grown_pos;