Re: High Impact Texturing

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Angus Dorbie (dorbie++at++bitch.reading.sgi.com)
Thu, 7 Mar 1996 11:00:40 +0100

This problem seems very different from the one Andy has reported.

If this also happens in pure OGL code then it seems like a bug you
should report to customer support although I've used similar
anti-aliasing methods without problems on an IMPACT.

Are you using MR hardware & All IMPACT Irix 5.3?

This may be some other state information affecting your anti-aliased
wireline pass.
Try turning on ENTEXTURE state for the geostate used for the lines,
or turn it on in the pre-draw, if this doesn't work then override it
once you set it and remove the override in the post draw.

Rgds,
Angus.

On Mar 5, 10:40pm, Juan Ramon Saenz-Diez wrote:
> Subject: Re: High Impact Texturing
> I have been experiencing similar problems with texturing on Impact as
> Andrew Ng reports. In my case, the antialiased lines I draw to outline
> polygons seem to randomly loose their texture, revealing theirselves
> (and so, deadly affecting the quality of the image). It may be working fine,
> and then the texture begins to come and go.
>
> This happens also in pure OGL programs. Randomness, if you will let me,
> makes this problem arise with no apparent reason.
>
> Anybody else can report similar problems? Help on this topic can be vital...
>
> Thank you in advance.
>
> Juan R."Yuri" Saenz-Diez. MetaCore Visual Computing, Madrid, Spain.
> yuri++at++metacore.es
>
>
>-- End of excerpt from Juan Ramon Saenz-Diez

-- 
Angus Dorbie,
Silicon Graphics Ltd, UK
dorbie++at++reading.sgi.com

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