Re: Anti aliasing and Lighting effects using Performer 2.5.1 Full edi tion

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From: Marcin Romaszewicz (marcin++at++sgi.com)
Date: 12/13/2002 12:54:18

Multisampling is such a huge performance hit on nVidia cards that
performer does not enable the feature automatically. To enable it:

export PF_ENABLE_MULTISAMPLE_VISUAL=1

-- Marcin

On Thu, 12 Dec 2002, Rob Body wrote:

> Hi All,
>
> I have an application that works fine on an ONYX RE2 but when ported to run
> under RedHat 7.2 Linux with a Gainward GeForce 4 card and Performer 2.5.1
> doesn't work.
>
> In my Openflight terrain model I have set up a flood light to illuminate
> some polygons and on the ONYX the effect is perfect. When I view the same
> scene on the PC the floodlighting doesn't appear at all. Does anyone know
> why this is happening. The light is being read in and added to the geometry
> but the effect doesn't show up.
>
> Anti aliasing
>
> I have set the following up on the Geforce 4:
>
> export __GL_FSAA_MODE=4 (to give 4 x Bilinear multisampling)
> export __GL_DEFAULT_LOG_ANISO=1
> export __GL_SYNC_TO_VBLANK=1
>
> but the anti aliasing still doesn't come on. Any clues as to what I might
> be doing wrong ?
>
> Thanks for your time.
>
> Rob
>
>
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> Rob Body
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>
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>
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