Re: How to merge NTSC signal of HUD in my application

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Angus Dorbie (dorbie++at++multipass.asd.sgi.com)
Thu, 3 Jul 1997 13:19:16 -0700

On Jul 3, 7:16pm, Jim wrote:
> Subject: How to merge NTSC signal of HUD in my application
> Hi performer:
> Is it possible to receive the NTSC signal of HUD and overlay it on
> other simulation frame? I want to combine the NTSC signal with my visual
> simulation. Can someone give some suggestion.
>

On Jul 3, 6:59pm, chien wrote:
> Subject: as contents

> I have an application need put a head up display generate from a real HUD
> generator with NTSC format together with performer 3D scene.
>
> Is there anyone have such experience?
>
> Please inform me how to do this in SGI O2.

Seems we have a duplicate question.

One method would be to capture the live NTSC video as a texture and
draw this as a quad over the scene with a blend function one, one.
This would add the hud intensity to the rendered scene intensity.

Cheers,Angus.
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