http://tech.groups.yahoo.com/group/opengl-gamedev-l/ OpenGL Game Development Fri, 07 Oct 2005 23:58:58 GMT Rhadamés Carmona http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23867 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23867 Thanks Guys! I change a little bit the code (move the code to another function), and now works... glFlush or glFinish were not required anymore... It is like a Fri, 07 Oct 2005 16:09:31 GMT Cass Everitt http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23866 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23866 Hi Rix and Matthäus, Evan is right. If sleep() affects your ReadPixels() result, something is probably wrong in the driver. (Unless you're using an asynch Fri, 07 Oct 2005 14:50:31 GMT William Damon http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23865 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23865 You might consider using FBOs and rendering to offscreen color and depth buffers to save yourself two read-backs of the frame buffer. -wd ... Sent: Friday, Fri, 07 Oct 2005 14:46:24 GMT Evan Hart http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23864 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23864 Actually, assuming that the read is done with a normal glReadPixels, neither glFlush nor glFinish are required, because OpenGL commands are guaranteed (to Fri, 07 Oct 2005 06:19:41 GMT Anteru http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23863 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23863 You need to call glFinish (), not glFlush (). glFlush () means that all commands are passed to OpenGL for processing - not that the processing has finished Fri, 07 Oct 2005 02:29:01 GMT Rhadamés Carmona http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23862 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23862 Hello Everybody I am programming with 3D textures and GLSL. At some point, I was interested in making 2 renderings in one frame, for comparrison... void Tue, 04 Oct 2005 16:44:29 GMT Roland Krause http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23861 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23861 Thanks very much, I'll bookmark the reference. Roland ... http://pyopengl.sourceforge.net/documentation/manual/glPushAttrib.3G.html ... FAQ and OpenGL Tue, 04 Oct 2005 08:29:40 GMT Grzegorz Bogucki http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23860 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23860 As it's specified in reference manual( f.e. http://pyopengl.sourceforge.net/documentation/manual/glPushAttrib.3G.html ), pushing GL_TEXTURE_BIT attributes Mon, 03 Oct 2005 19:01:14 GMT Roland Krause http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23859 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23859 Couple of weeks ago I asked a question about textures and displaylists. Didn't get any answers, so I am trying to ask the question in a bit different way: Say Sat, 01 Oct 2005 10:20:28 GMT Dominic Curran http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23858 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23858 WHERE TO FIND OPENGL INFORMATION - (Bi-weekly posting) The Official OpenGL Site - News, downloads, tutorials, books & links:- http://www.opengl.org/ The Mon, 26 Sep 2005 22:50:36 GMT Roland Krause http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23857 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23857 Hi Folks, Does it make sense to do the following: (Soooorrry for the awful pseudo code...) open display list draw something push the texture bit on the Thu, 15 Sep 2005 15:11:19 GMT Pat Brown (OpenGL) http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23856 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23856 There is no way to get at the texture enables in fragment programs. Additionally, the texture enables have no impact on fragment program execution -- you don't Thu, 15 Sep 2005 14:42:47 GMT Rhadamés Carmona http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23855 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23855 Hi Guys I am using CG, and I would want to retrieve opengl state from fragment program. I just need to know (inside the fragment program) if 2d texture is Thu, 15 Sep 2005 14:39:09 GMT Dominic Curran http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23854 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23854 WHERE TO FIND OPENGL INFORMATION - (Bi-weekly posting) The Official OpenGL Site - News, downloads, tutorials, books & links:- http://www.opengl.org/ The Tue, 13 Sep 2005 19:50:19 GMT Hanspeter Pfister http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23853 http://tech.groups.yahoo.com/group/opengl-gamedev-l/message/23853 One last note to this topic: I checked with Harvard, and they do not have a reduced rate for auditing - sorry. And thanks to Kent Quirk for the nice comments