Yves wrote

> Am 28.03.11 00:34, schrieb Vivian Meazza:
> >
> > If the reflection map path is incorrect you should see only this error
> > message:
> >
> > "no image file, maybe the reader did not set the filename attribute,
> using
> > white for type '2d' on '', in /technique[9]/pass[0]/texture-unit[4]"
> >
> 
> I get no missing file errors.
> 
> > If you are seeing another error message, please update your data (some
> > potential errors were removed recently). If the errors persist then
> please
> > file an issue report.
> 
> I reverted all commits from Fred related to the patches from Lauri,
> without success. The issue remains, "OpenGL error" and "invalid
> operation error" after renderbin draw with reflect and reflect-bumpspec.
> All other shaders work as expected. I am on ATI 5750 on OSX 10.6.6.
> 
> I don't see any other changes checked in fgdata or flightgear the last
> weeks. Where should I look else?
> 
> I am tired of this issues (probably only ATI/OSX driver related again?).
> I bought a new ATI 5750 and now I get new errors with the reflect
> shaders. The shaders worked as expected with my very old ATI x1600, hmpf!
> 
> Should I downgrade OSG to 2.9.7, I am currently running 2.9.9. ?
> 

I think you answered this one yourself:

"shaders worked as expected with my very old ATI x1600"

Nothing has been changed in quite a while, apart from Lauri's patch which
makes the shaders more backward compatible. I think you should use the
shader with this patch applied, since it removed unused variables, which are
a potential source of errors.

I'm running 2.9.9 here, but it might be worth trying 2.9.7.

I think "OpenGL error" and "invalid operation error" would indicate a driver
issue, but I'm not an expert. Is anyone else reporting issues with this
shader?

Test using the B29, I'm confident that it works correctly. I'm not sure
about other instances.

I'm sorry I can't help more, but I'm not a mac user.

Vivian 



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