I have a patch with mutiplte 3D objects movin in space,
and I’d like them to leave more or less a trace behind
them, as if they had different erase_color values.
All rendering in one window.
I found examples in the forum explaining how to make
multiple rendering of a scene, but this does not seem to do the trick.
I guess I would need as many render as different erase_color,
since erase_color in done during the rastering phase which is
performed only once in the render, if my little OpenGL knowledge is correct.