Does working with GLdoubles improve precision at all?
I’ve been having precision problems (jitter in vertex positions as well as quarted textures) and thought of switching everything to doubles.
After a couple tests I quickly found it was twice as slow, but then I started googling about it and what I found confused me:
Some people talk about using doubles being totally useless since everything is converted back to single precision when sent to the graphics card.
Some other talk about opengl switching to “sofware rendering”, saying it was slower, and though they said nothing about it, you can deduct the precision was effectively improved.
So, does using glDoubles work at all?