Hi Robert,

Could you have a look at osglogo to see how well it works with and
without the PolygonOffset workaround.

With the Radeon workaround you only get the outline effect on the text
closest to the the camera.  With or without the workaround you get
some flickering in the outline when the text is rotated.  If I have to
choose I prefer without the workaround.


Regards,
Brede


On 7/15/06, Robert Osfield <[EMAIL PROTECTED]> wrote:
Hi Brede,

On 7/15/06, Brede Johansen <[EMAIL PROTECTED]> wrote:
> The osgscribe example didn't look right, see attached screenshot.  I
> traced this to the Radeon workaround in PolygonOffset, remove the
> workaround and the artifacts disappeared.  Btw.
> glGetString(GL_RENDERER) return "RADEON X800 XT Platinum Edition
> x86/SSE2" on my system.

Thanks for the feedback.   We need to try a track down what values
work well on what OS/Hardware.

Could you have a look at osglogo to see how well it works with and
without the PolygonOffset workaround.

> The second issue I came across was the glsl_mandelbrot.osg shader.
> This produced a white screen and hung the viewer.  Later I found the
> glsl_julia.osg shader to do the same thing.  The shaders are from 2005
> so I may have to update my data distribution.

The OpenSceneGraph-Data hasn't changed, so the problem is likely down
to ATI's driver.

Robert.
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