Re: textured polygon in HUD overlay

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Veraart (rioj7++at++fel.tno.nl)
Mon, 1 Jul 1996 11:44:45 +0200 (MET DST)

>
> I would like to display a color key in a HUD overlay plane. The color key is a
> geoset containing a simple textured polygon. I would like to overlay this 2-D
> color key over a pseudo-colored 3-D surface so that key remains fixed as the
> user flies over the surface.
>
> My question is what is the best way to display 2-D textured polygons in a HUD
> overlay?

Just use IrisGL or OpenGL calls to draw a textured rectangle in your
routine that draws the HUD.
You draw the HUD in a 2D view projection mode in a post draw callback.
To select the texture use the pfTexture load function call.

Mario
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