Re: [Mesa3d-dev] NV_vertex_program parser / code generator

[Jeff E. <je...@us...>]

On Tue, Mar 06, 2001 at 08:02:46PM -0500, Brian Paul wrote:
> GL_NV_vertex_program is a really nice, exciting extension.  It would
> be great to have it in Mesa.  The issue is getting permission from
> NVIDIA to implement it in open-source.  "NVIDIA Proprietary" is pretty
> clearly plastered over the pdf file.

You're right.  I had read a version with the "proprietary" watermark,
but when I saw the version in this other PDF file the watermark was gone
and I thought it must have been released without restriction.  However,
it's still marked as proprietary.  What does this mean for the status 
of the code I've written based on the document?  Should I avoid sharing it
with anybody at this time?

> An interpreter-based implementation would be fine for starters, and
> probably be easiest to debug, and most portable.  Ideally, vertex
> programs would be compiled into 3dNow or SSE-optimized assembly code.

Yes, that's probably the way I should have approached the problem.

By the way, can someone tell me what the DST instruction is good for?
I don't recall seeing it used in any of their example vector shader
snippets.

Jeff