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Index › Programming Questions & Help › OpenGL and 3D Libraries › can't figure out 2d overlay, hint causing problem
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can't figure out 2d overlay, hint causing problem (Read 927 times)
oompa_l
can't figure out 2d overlay, hint causing problem
Nov 15th, 2008, 1:43am  
Hi

there are several threads about overlaying 2d controls over a 3d scene but I have never been able to figure out how to get it to work. I just returned to the problem determined ot figure it out once and for all. None of the suggested method seem to work.

The simplest seems to be the hint(ENABLE_DEPTH_TEST); before drawing the 2d graphics. Not exactly sure what this promises to do but it throws up a NullPointerException.

What is the best way I should be approaching this??
thanks
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pelintra
Re: can't figure out 2d overlay, hint causing prob
Reply #1 - Nov 15th, 2008, 2:34am  
Hi,
a really easy way of doing this is simply calling camera() with no arguments just before drawing your 2d visuals. This will reset the projection and set the coordinate system to the way it would be when drawing in 2d. Smiley
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oompa_l
Re: can't figure out 2d overlay, hint causing prob
Reply #2 - Nov 15th, 2008, 8:18pm  
thanks for the tip. I will try that when I am at it again. I should've mentioned that I am also using the ocd camera library in that particular sketch - I wonder if your proposal will still work
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oompa_l
Re: can't figure out 2d overlay, hint causing prob
Reply #3 - Nov 16th, 2008, 12:09am  
yup, your suggestion worked...

thanks!
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