#else
sample_tc.y = tc.x * PREFIX(num_loops);
#endif
- vec2 sample = texture2D(PREFIX(sample_tex), sample_tc).rg;
+ vec2 sample = tex2D(PREFIX(sample_tex), sample_tc).rg;
#if DIRECTION_VERTICAL
tc.y = sample.g + floor(sample_tc.y) * PREFIX(slice_height);