I experienced similar result when I read the float data from the texture using 32 bit, but only rendering to 32 bit shouldn't decrease the FR that much. What card do u use and what interpolation do u set for the texture? (I think u must use NEAREST with GL_RGBA32F_ARB). ----- Original Message ----- From: Benoit bossavit To: OpenSceneGraph Users Sent: Monday, September 24, 2007 2:25 PM Subject: [osg-users] HDR 32bit
Hi all, I'm trying HDRR. My application (osg v1.2) turn in real time (>60fps) using FBO with texture 16bits (GL_RGBA16F_ARB), but when I try with FBO 32bits(GL_RGBA32F_ARB) my frame rate is null. Is it normal loosing almost all performances? :s There is a minimal hardware configuration to do HDR32? There is something to do more than change the internal format of texture attached with FBO? If someone have an answer :) Thanks you bnua ------------------------------------------------------------------------------ _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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