Quoting David Luff : > I have an inkling in the back of my mind that it might also possibly be > useful for drawing impostors for the 3D cloud rendering, but that's just a > wild guess.
Mark Harris, who wrote both RenderTexture and 3d clouds, used the framebuffer to do the latter's impostors. But the resulting image has to be copied to the texture memory and this could be avoided by the use of pbuffer. Note that if we are careful to render to texture *before* the initial glClear, we could use this path ( drawing to frame back buffer and then copy image to texture memory ) for systems that will not support pbuffer. -Fred _______________________________________________ Flightgear-devel mailing list [email protected] http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
