vec2 sample = tex2D(PREFIX(sample_tex), sample_tc).rg;
#if DIRECTION_VERTICAL
- tc.y = sample.g + floor(sample_tc.y) * PREFIX(slice_height) + PREFIX(whole_pixel_offset);
+ tc.y = sample.g + (floor(sample_tc.y) * PREFIX(slice_height) + PREFIX(whole_pixel_offset));
#else
- tc.x = sample.g + floor(sample_tc.y) * PREFIX(slice_height) + PREFIX(whole_pixel_offset);
+ tc.x = sample.g + (floor(sample_tc.y) * PREFIX(slice_height) + PREFIX(whole_pixel_offset));
#endif
return vec4(sample.r) * INPUT(tc);
}