be ideal.
*/
-const uint patch_size = 12;
-const uint num_iterations = 8;
-
in vec3 flow_tc;
in vec2 patch_center;
flat in int ref_layer, search_layer;
uniform sampler2DArray flow_tex, image_tex;
uniform usampler2DArray grad_tex; // Also contains the corresponding reference image.
uniform vec2 inv_image_size, inv_prev_level_size;
+uniform uint patch_size;
+uniform uint num_iterations;
vec3 unpack_gradients(uint v)
{