- vec2 patch_bottom_left = position - vec2(0.5, 0.5) * vec2(inv_flow_width, inv_flow_height);
- patch_bottom_left_texel = patch_bottom_left + vec2(0.5, 0.5) * vec2(inv_image_width, inv_image_height);
+ vec2 patch_bottom_left = position - vec2(0.5, 0.5) * inv_flow_size;
+ patch_bottom_left_texel = patch_bottom_left + vec2(0.5, 0.5) * inv_image_size;