cyrille henry escribió:
if you wish to render something white, then red, then white, with the same gemhead, you obviously need at least 2 color objects.
That's "obvious" only once one knows that [separator] won't "reset" the color to its default value as it does with other things (not only geometry).
If you wish to render something without alpha, then something with alpha enabled, then something without alpha again with the same gemhead, you _don't_ need at least two alpha objects, provided you use separators.