[opensource-dev] Dynamic shadows and ATI

[Laurent Bechir]

Geenz Spad a écrit :
> Your best bet is to complain directly to Apple with a repro case.  The 
> mesh beta viewer seems  to fix the FBO issues on OS X.  AFAIK, AMD 
> only writes the hardware drivers for their cards on OS X, Apple 
> handles the OpenGL bits and pieces across both AMD and Nvidia hardware.

Done. I've tried to be the clearest I could, but If you think something 
should be explained better, tell me. Perhaps I can fix that from my 
Apple account. In fact, it's my first bug report with Apple :)


Problem ID: 8685718

Bug with ATI driver and OpenGL Frame Buffer Object (FBO)

19-Nov-2010 12:57 AM laurent Rathle:
Summary:

When I try to use Dynamic shadows in Second Life, the best I can get is 
strange artefacts on my screen  and even sometimes not only the viewer 
crashes, but my Mac Pro can freeze to obliging me to force stop it.

Steps to Reproduce:

Download Second Life viewer : http://wiki.secondlife.com/wiki/Mesh
Click Cmd+Shift+G and choose Agni in the list
Connect your avatar
In the settings (Cmd+P) choose Graphics tab and check the box in front 
of "Lightings and shadows"

Expected Results:

You should have dynamic shadows, which means shadows following the 
movements of the avatar, and changing during the day.

Actual Results:

Sometimes you get strange artefacts on the screen. Sometimes the viewer 
crashes. Some time it's the computer which freeze.

Regression:

Notes:

Dynamic shadows work perfectly well using Nvidia cards. The problem only 
occurs with ATI driver. This problem stops the mac community of Second 
Life to enjoy the best of this environment.