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OpenGL Linewidth? (Read 579 times)
brln_
OpenGL Linewidth?
Jan 21st, 2008, 6:45pm  
Hi,

a have a quick question:

How does the glLineWidth command work in Processing with OpenGL?

Quote:

 javax.media.opengl.GL gl = ((PGraphicsOpenGL)g).beginGL();

 gl.glLineWidth(4.0f);

 ((PGraphicsOpenGL)g).endGL();



Compiles fine but still draws lines at one pixel.

Any Ideas?
Thanks a lot!
b
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Manic
Re: OpenGL Linewidth?
Reply #1 - Jan 21st, 2008, 10:30pm  
why not just use the strokeWidth() command? it works just fine in OpenGL.
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davbol
Re: OpenGL Linewidth?
Reply #2 - Jan 21st, 2008, 11:08pm  
If that's all you're doing with native opengl mode, then it won't work -- if processing is still doing the drawing then it'll reset the linewidth based on the strokeWidth active when each line was generated.  (you'd have to do your own native opengl drawing to get around that)  So easiest fix is (per Manic) use strokeWidth().  Another possible issue is if your card supports linewidths other than 1 (since not required by opengl)
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