---- Reported by yvg 2004-04-24 06:01:57 ----
Multisampling (FSAA) does not work on ATI cards.
For some reason ATI drivers return empty string for both
wglGetExtensionsStringEXT and wglGetExtensionsStringARB, so JOGL can not detect
presence of multisampling capabilities, and FSAA does not work. The same code
works fine on NVidia cards.
Other programs (Realtech VR OpenGL extension viewer and NeHe Lesson #46) show
that multisampling extensions are there and are able to use them.
After detalied investigation, I found that the problem caused by call to
wglGetExtensionsStringARB outside of GLEventListener methods. Moving request of
WGL extension string to init(...) method of GLEventListener associated with
dummyGL solves problem.
Suggested solution is: create additional map [device -> extensions string] in
WindowsGLContextFactory, fill it in init(...) method of GLEventListener
associated with dummyGL, and in
WindowsGLContext.choosePixelFormatAndCreateContext(...) use value from this map
instead of calling wglGetExtensionsStringARB directly.
See patch attached.
Yuri Vl. Gushchin
---- Additional Comments From yvg 2004-04-24 06:03:48 ----
Created an attachment
Patch for fixing FSAA with ATI
---- Additional Comments From kbr 2004-04-25 19:23:07 ----
Thanks for the patch. It has been applied to the CVS repository and will show up
in the next nightly build as well as the next release build.
--- Bug imported by firstname.lastname@example.org 2010-03-24 07:46 EDT ---
This bug was previously known as _bug_ 76 at https://jogl.dev.java.net/bugs/show_bug.cgi?id=76
Imported an attachment (id=20)
The original submitter of attachment 20 [details] is unknown.
Reassigning to the person who moved it here: email@example.com.