[PD] smoke object help

nosehair911 at bellsouth.net nosehair911 at bellsouth.net
Fri Aug 3 14:47:08 CEST 2007

Hi all,

I posted this in the gem-dev list but maybe someone here can give a some advise or a different 
solution for my problem. The reason I am trying to use gem is because they have already figured out 
the glLoop problem between openGL and Pd. Also because I then would have access to the other 
gem objects.

I am trying to transcribe this glut application here:


into a gem object. At first at thought it would be easy seeing as the code was 
pretty much working but 
I am having a tough time of it. I compiled the original application and it 
works perfect but it seems like 
when I convert it to a gem object I get nothing.

Here are some things I am assuming, please correct me...
1. glut and openGL/Gem use the same measurements like when I use glVertex2f(px, 
py); it is the 
same in both.
2. Instead of using the glut mouse controls I can use a list inlet to get x and 
y coordinates.

Other than that I pretty much copied the app and used render(GemState *state) 
to put all of the 
rendering stuff into. But I still cant get it to work. I get a black screen. 
I think it is probably drawing 
somewhere of screen but I really cant seem to figure out how to fix the 
problem. If anyone can give 
me a clue I would appreciate it.

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