[fixed]Low framerates in 1.4.1

squisher · Post by **squisher** » Fri Jun 20, 2008 3:22 pm

My apologies if this has already been addressed (and if it has, can someone please point me in the right direction)

I'm using the CLensFlareSceneNode worked on by gammaray and others.

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original post

This scene node worked like a charm, out of the box for Irrlicht 1.4. After upgrading to 1.4.1, I discoverred my frames per second dropped to 2 or 3 while looking at the node, and back up to 80-90 frames per second looking away from it. I downgraded back to version 1.4 and the problem went away.. I got 80-90 fps while viewing the node.

The only rendering method I see in the scene node that I don't use elsewhere is drawIndexedTriangleList. Maybe that's the culprit, maybe it's not. In any case, I have to use 1.4 until this is resolved.

Thanks

hybrid · Post by **hybrid** » Fri Jun 20, 2008 4:31 pm

The problem is that some ATI cards use a SW fallback for NPOT textures under OpenGL 2.0. You should find a bug report somewhere down here which also has a fix for this issue, see also this patch in SVN:
http://irrlicht.svn.sourceforge.net/vie ... threv=1363
which shows the changed line.

squisher · Post by **squisher** » Fri Jun 20, 2008 6:55 pm

hybrid wrote:The problem is that some ATI cards use a SW fallback for NPOT textures under OpenGL 2.0. You should find a bug report somewhere down here which also has a fix for this issue, see also this patch in SVN:
http://irrlicht.svn.sourceforge.net/vie ... threv=1363
which shows the changed line.

Thanks!