Re: [Mesa3d-dev] Re: [RFC] bump extension proposal..

[Brian P. <br...@pr...>]

Holger Waechtler wrote:
> 
> ralf willenbacher wrote:
> >
> > attached are my thoughts on a bumpmapping extension for mesa.
> > i would like to hear some opinions :>
> 
> What do you think about implementing GL_EXT_texture_perturb_normal ??
> 
> GL_EXT_light_texture, GL_EXT_coordinate_space and GL_EXT_fragment_lighting
> would have to be written first, but it's the better solution in my mind.
> If you go this way, I would be glad if I could help implementing one or
> two of those extensions.

I have some concerns about implementing these extensions:
  1. Will any of these extensions map onto current hardware?  None that I
     know of.
  2. There are patent issues associated with them.
  3. They're somewhat complicated and I worry about implementation problems.
  4. I don't know of any other GL that implements these extensions.

I'd like to see an extension spec for NVIDIA's new per-pixel lighting feature.
That might be more interesting/useful.

-Brian