While doing some reading on how real-time applications handle color under OpneGL, I noticed that some examples implemented Color as a collection of 4
floats, while others used 4
doubles. I have even seen some vertex-compression examples in the game development field that advocated saving colors as 4
All this got me eager for learning more about this: what is the limit precision that OpenGl (or hardwares) handle for colors? More importantly, though, what are the limits in precision above which color differences become impossible to notice?
I have the impression that learning more carefully about that would help me better think and decide on how to implement a Color class for different applications and scenarios (e.g. making trade-off choices between memory, speed and color-variety).
Thanks for your ideas on this.