Re: highlighting a texture

New Message Reply Date view Thread view Subject view Author view

Phil Keslin (philk++at++cthulhu.engr.sgi.com)
Sat, 13 Feb 1999 21:14:42 -0800

Ran Yakir wrote:
>
> Stephen,
>
> Why don't you try the texture color scale and bias ? I think those are cheaper
> than TLUT. You can then saturate your texture color, in order to highlight it,
> or you can totaly remove one color component.
> You control the scale and bias with glTexParameterfv, with the arguments
> GL_POST_TEXTURE_FILTER_SCALE_SGIX and
> GL_POST_TEXTURE_FILTER_BIAS_SGIX

You should be aware that texture scale/bias is only available on some
graphics systems as is TLUT (although TLUT is more prevalent).

- Phil

-- 
Phil Keslin <philk++at++engr.sgi.com>

New Message Reply Date view Thread view Subject view Author view

This archive was generated by hypermail 2.0b2 on Sat Feb 13 1999 - 21:14:25 PST

This message has been cleansed for anti-spam protection. Replace '++at++' in any mail addresses with the '@' symbol.