What's the best file format for Textures? (Optimisation etc...)

[Luos (Luos_83)]

Then you gotta show your workflow, because .PNG and alpha is messed up, especially if the alpha has nothing to do with the image itself. (i.e. 4 cloud textures in rgba)

PNG with Alpha: How do you get them to work?

So if you have a way to make alpha in png always work, I’d really like to know