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Index › Programming Questions & Help › OpenGL and 3D Libraries › GL_ERROR

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GL_ERROR (Read 803 times)

backspaces

GL_ERROR
Jan 13^th, 2006, 6:31am

I've built an earth model which uses UV texture mapping of NASA "blue marble" images onto a QUAD sphere. Here's the applet which should work:
http://www.backspaces.net/files/play/

But I've run into an odd problem. I have three sizes of the NASA image used, 2048 4096 8192 pix across, with the smaller as the default.

When I change the default to be 4096, and change from P3D to OPENGL, I get the following error:
GL_ERROR at before bind: 0501 GL_INVALID_VALUE

I can use all three resolutions using Processing & P3D with the memory set high .. as suggested in the FAQ. But if I use OPENGL with either of the two larger sizes, I get the failure above.

Any ideas?

Owen -- Mac OS X -- The latest Processing generally.

toxi Full Member Offline Posts: 203	Re: GL_ERROR Reply #1 - Jan 13^th, 2006, 1:02pm that error is because on most systems the max. texture size still is limited to 2048x2048 pixels, on many mac it's even just 512x512... there should be a function to query the max. texture size available, but haven't got time to dig it out. also check here: http://www.google.co.uk/search?q=opengl+texture+2048+limit
	postspectacular.com \| toxi.co.uk

fry YaBB Moderator Offline Posts: 2623 mass, usa	Re: GL_ERROR Reply #2 - Jan 13^th, 2006, 3:20pm i'll make a note to add something that'll check it internally to provide a more useful error message.

backspaces Junior Member Offline Posts: 66	Re: GL_ERROR Reply #3 - Jan 13^th, 2006, 5:38pm Thanks for the fast response! So I could probably solve the problem by subdivision: break my larger pictures into smaller ones, and map them onto appropriate smaller spherical shapes? Owen
	Owen -- Mac OS X -- The latest Processing generally.

fry YaBB Moderator Offline Posts: 2623 mass, usa	Re: GL_ERROR Reply #4 - Apr 14^th, 2006, 2:58am now fixed for 0112, which will provide an error message if you attempt to make a texture that's too large.

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