Re: tools to do texture

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Rob Jenkins (robj++at++barney.reading.sgi.com)
Tue, 1 Aug 1995 08:32:53 +0100

On Jul 31, 5:30pm, Nathaniel Bletter wrote:
> Subject: Re: tools to do texture
> In the same vein, does anyone know of any tools to overlay one image with an
> alpha channel over another. This would be just like the standard "over"
> command, except over doesn't seem to pay attention to the alpha channel, or
it
> gets confused by it.
>
> I didn't find anything like this in the performer/tools.tar collection.
>
> Thanks,
>
> Nat Bletter
> SRI International
> nat++at++od.sri.com
> http://os.sri.com/people/nat/
> (415) 859-4358
>-- End of excerpt from Nathaniel Bletter

Nat

try using oneband to make the alpha channel alone an image and then use over:

oneband inimage.rgb outimage.bw band

where band is 3 will extract the alpha channel.

Cheers
Rob

-- 
________________________________________________________________
Rob Jenkins, Software Support Group, Silicon Graphics UK Ltd.       
1530 Arlington Business Park, Theale, Reading, UK, RG7 4SB. 
tel 01734 257736, fax 01734 257553, email robj++at++reading.sgi.com,

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