----- Original Message -----
From: Doug Rabson <[EMAIL PROTECTED]>
To: Keith Harrison <[EMAIL PROTECTED]>
Cc: Mesa Dev <[EMAIL PROTECTED]>
Sent: Monday, December 06, 1999 11:47 AM
Subject: Re: [Mesa-dev] Phong shading integration
[SNIP]
> Using the second optimisation means that you are stuck with gouraud's
> linear interpolation which restricts the visual quality somewhat even for
> triangles which don't contain a highlight. You also need to bear in mind
> the edges of spotlight shadows when choosing whether to fall back to
> gouraud.
IIRC The H test takes this into account (it was about four years ago when I
posted some sample code on the 'net). This is a moot point, though, since
you are obviously not interested in dropping back to Gouraud. ;)
Have you considered ray-tracing in order to get your desired image quality?
Regards,
Keith Harrison
SiO2 Software.
[EMAIL PROTECTED] (personal)
[EMAIL PROTECTED] (work)
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