With shaders this is often the best bet. You end up encoding some value you want to measure as a color, and you can observe how it varies over what you’re drawi

With shaders this is often the best bet. You end up encoding some value you want to measure as a color, and you can observe how it varies over what you’re drawing. There are some pretty sophisticated step debugging tools these days, but just like with print debugging, debugging by color always works on all platforms and has no special setup.