Shader optimization references, float, half, fixed?

I’m wondering if anyone has some picture examples or know where to find some, that show how much of a difference there is between these choices?

Talks a bit about mobile performance as well :slight_smile:
One little thing to be aware of is there’s a performance overhead from converting between precisions, ie: highp variables to lowp (or float to fixed). I loved reading a few of Aras’ articles on optimization, where ‘optimized’ code actually ran slower from conversions! Like all programming, premature optimization is the root of all evil. Get it working first and then test your optimisations to see if they’re effective. Shader programming can be more of an art than a science sometimes…

This page has the details:

It just depends on how exact/precise you want to be. Not too much of a difference.