[GEM-dev] part_render

[guenter geiger]

When using part_render there is one problem left, and that is that the
object (the circle in the example) gets drawn with default values
at the center,and is not actually a particle
(You can check this by setting the part_size value in the 07.render.pd
examples of the particle patches to a small value like 0.1)

To get rid of that problem, some chances in GemBase.cpp have to be
introduced. There are several possibilities:

1) make gem_renderMess a virtual function and reimplement it in
part_render.cpp without the problematic gem_state message

drawback: virtual functions are slow

2) provide some mechanism to suppress the message
(setting a flag in the GemBase class)

drawback: a bit hacky

3) call continueRender at the end of every render() call

drawback: lots of work

I have implemented the first version already, could
commit it, but I want to hear what you think first.

Guenter