http://www.opengl.org/discussion_boards/ubbthreads.php OpenGL Dev - GLSL OpenGL.org Discussion and Help Forums - UBB.threads(tm) http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=309854#Post309854 Posted by Ilian Dinev:
vec3 vDiagonal = texture(Diagonal,CurCoord.xyz).xyz; or vec4 vDiagonal4 = texture(Diagonal,CurCoord.xyz); vec3 vDiagonal = vDiagonal4.xyz;]]> Tue, 07 Feb 2012 21:50:02 PST http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=309717#Post309717 Posted by Alfonse Reinheart:
GLee hasn't been updated in years. It's kinda dead by now.]]> Sat, 04 Feb 2012 14:34:56 PST http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=309571#Post309571 Posted by Dark Photon:
Yeah, just look for a setting called "Sync to VBlank" or similar in your driver documentation, and disable it. Then you can get a clearer picture of how long your frame is actually taking to render. On NVidia/Linux, you can set in nvidia-settings, ]]> Wed, 01 Feb 2012 00:23:06 PST http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=309461#Post309461 Posted by Dark Photon:
[quote=icanhaz]Basically i want to be able to switch between the 2nd and the 3rd image. Something like, clamping the value between -1 and 1. If it's larger than 0, the falloff comes from the inside out. And its smaller than 0, then it's the other way]]> Sat, 28 Jan 2012 16:26:17 PST http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=309428#Post309428 Posted by BanskiAchtar:
That makes sense, I suspected that was the case but it's good to know for sure. Thanks for the help!]]> Fri, 27 Jan 2012 13:25:03 PST http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=309408#Post309408 Posted by vivendi:
Hi, in my scene i only have a background. Its like looking at a 2d wall, but i do have some other 3d objects in front of it. I want to add a refraction effect to my objects with a shader. Normally i'd have to pass a cubemap. But since there is no ]]> Fri, 27 Jan 2012 06:41:05 PST http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=309258#Post309258 Posted by Jaymz:
[quote=ZbuffeR]It is because as already said, the initial MIN needs mipmaps to work (it is GL_NEAREST_MIPMAP_LINEAR)[/quote] now I see I missed that you also said this: [quote=ZbuffeR]Especially the "filtering" part.[/quote] which obviously I di]]> Mon, 23 Jan 2012 23:04:09 PST http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=309194#Post309194 Posted by Xoric:
Hello! Your code was exactly what I was looking for [b]menzel[/b]. I could not get it to work the way I intended yet but I will figure it out soon. Thanks a lot! Also thanks for your hint [b]mbentrup[/b]. I edited the shader. Thanks! The]]> Sun, 22 Jan 2012 05:58:44 PST http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=309060#Post309060 Posted by saam_b:
tnx! :)]]> Thu, 19 Jan 2012 09:36:22 PST http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=308982#Post308982 Posted by Peixinho:
Hm.. it seems to be a little bit faster with your suggestions, but still, the speed decreases a lot, when a light is added. Maybe there is no way :( Thanks ]]> Wed, 18 Jan 2012 02:07:51 PST