Go Back   nV News Forums > Linux Support Forums > NVIDIA Linux

Newegg Daily Deals

Thread Tools
Old 09-07-05, 05:13 PM   #1
Registered User
Join Date: Apr 2003
Posts: 1
Question Write once texture with FBO ?

I am trying to replace my render-to-back-buffer app with the new FBO feature. It works, the first time. That is, the second pass (draw to screen using the texture object in the framebuffer object) does not change.

When I change the first pass to draw to screen rather than draw to FBO, and turn off the second pass, I see what I would expect to be rendered to the texture (i.e. it changes).

So, either the texture is not being updated, or the first bits drawn to the texture is somehow 'locked' into that texture. Or I'm just missing something.

Any clues?
daniel is offline   Reply With Quote
Old 09-07-05, 09:08 PM   #2
Free Software Zealot
Join Date: Apr 2004
Posts: 39
Default Re: Write once texture with FBO ?

There are some deep FBO bugs in the current release of nvidia drivers.
For instance it is impossible to create a STENCIL renderbuffer, ie the
GL will return an error even if the command is correct.
I also found almost impossible to make work more than one FBO, probably
because of buggy context switches.

I hope that it will be fixed in the next release, but when will it be?
Unluckily, a powerful video card is not enough to program with opengl,
but very stable drivers are required as well, or you'll get mad while trying
to make work your program.
metamatics is offline   Reply With Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
AGP Fast write and SiS 735 not supported ? Chojin NVIDIA Linux 9 10-11-02 06:52 PM
What does texture sharpening do? eliteone NVIDIA Windows Graphics Drivers 8 10-02-02 05:58 PM
Texture Sharpening in the Detonator 40's JamesDax NVIDIA Windows Graphics Drivers 5 08-30-02 10:36 AM
Default Texture LOD bias ridcully NVIDIA Linux 2 08-19-02 02:45 AM

All times are GMT -5. The time now is 10:09 PM.

Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright 1998 - 2014, nV News.