Tom Forsythe has an entry on his blog about the cost of state changes that I've found to be very helpful.
http://home.comcast.net/~tom_forsyth/blog.wiki.html /Andreas 2008/12/9 Paul Melis <[EMAIL PROTECTED]> > Tomlinson, Gordon wrote: > >> Hi Vincent >> Of the top of my head I would assume it an optimizer that's without >> looking at the code >> as generally you want to optimize and share states as state changes is one >> of the big hurts >> in the OGL pipe line >> > Not really on-topic, but I always wondered if there is some kind of > overview of which OpenGL state changes are more expensive than others. E.g. > setting the new current color is almost certainly cheaper than making a > different 2D texture active. Browsing through the OSG code I couldn't really > pinpoint where such an order is assumed. > > Regards, > Paul > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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