• Advertisement

Archived

This topic is now archived and is closed to further replies.

Strange artifacts on cheap card: my fault??

This topic is 5493 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

Hi, My openGL scene gets rendered in a different way on my notebook. There are strange artifacts appearing sometimes in the border of the scene : http://www.geocities.com/liebeskleineskerlchen/artifacts.jpg It seems that some triangles are culled by the graphic card (I render QUADS, so it can''t be my fault, right?) I can''t remember the name of the graphic chip, but I read that it''s one of the worst you could by 2 years ago Is there a workaround to avoid these artifacts? Thanks

Share this post


Link to post
Share on other sites
Advertisement
what are the artifacts?

http://uk.geocities.com/sloppyturds/kea/kea.html
http://uk.geocities.com/sloppyturds/gotterdammerung.html

Share this post


Link to post
Share on other sites
I don''t know if artifact is the right term, but it seems that parts of some rendered quads are simply culled (but they shouldn''t). Here a screen shot of the scene with my notebook:

http://www.geocities.com/liebeskleineskerlchen/bad.jpg

Some triangles in the upper right corner are simply culled away! If I turn backface culling off on that computer, or if I rotate the camera slightly, the scene is rendered correctly.

Here a screenshot of the scene how it should be rendered (and how it is rendered on a different computer):

http://www.geocities.com/liebeskleineskerlchen/good.jpg

The graphic chip on my notebook is a ''SiS 630/730''...

Share this post


Link to post
Share on other sites
that looks to be a ''major'' error in the graphics cards drivers email the chips makers with a sample application.

http://uk.geocities.com/sloppyturds/kea/kea.html
http://uk.geocities.com/sloppyturds/gotterdammerung.html

Share this post


Link to post
Share on other sites
Thank you all for your help. I really think something is wrong either with the driver either with the chip.

Share this post


Link to post
Share on other sites

  • Advertisement