Can not render Mesh or Alphas on any viewer.

[Xerxcuss Voom]

This just started today and i've tested the problem on almost every veiwer with this same result. 

I Have: 

Cleared cache

Changed Cache location

Reinstalled video drivers

reinstalled SL viewers

Still no luck.

All my other games are uneffected.

Using AMD HD 6790 with latest AMD driver "Omega"

[ObviousAltIsObvious]

that Omega driver has broken OpenGL support. you can go back to Catalyst 14.4 or 14.9 to get SL working fully again.

if you want a quick half-fix until you have time to switch drivers back, you can turn off hardware skinning in your viewer settings, but things will look pretty bad that way.

if you want to keep the new driver installed, you can copy old versions of the OpenGL DLLs into your viewer's program folder, and then the viewer can work as expected. more details at https://jira.secondlife.com/browse/BUG-7653

[Khalied Jameson]

This is a driver issue. But only SL because it uses an old version of OPENGL that nvidia still supports but AMD does not. 

Simply add the appropriate ati opengl dlls to your sl viewer folder(whichever viewer u are using) and it should work fine.

 

Blog with fix:

https://modemworld.wordpress.com/2014/12/13/amd-catalyst-drivers-additional-windows-workaround/

 

OpenGL dll's to drop in your viewer folder

https://www.dropbox.com/s/ig1cz5sdjdgs3a2/ATIFix_dll_14.4.zip?dl=