Re: Using wireframe to fake antialiasing

New Message Reply Date view Thread view Subject view Author view

Scott Herod (herod++at++evt.com)
Thu, 21 Jan 1999 15:12:37 -0700


Angus Dorbie wrote:
>
> Scott Herod wrote:
> >
> > What you suggest is essentially what I ended up doing by hand
> > in an example that I worked up. I've got lighting to work
> > with materials but texgen is slightly (but noticably) off so
> > edges are visible. Straight textures worked well.
>
> Texgen or texture modulation?

TexGen. I'm using the same face and edge definitions as with
colors but the texture on the wire has a slightly different color.
I turned on PFTE_DECAL and it worked ok. (I was using lighting.)

> > It sounds like it would be best to just tell people that they
> > will need a machine with hardware multi-sampling in order to
> > smooth generic models.
>
> Absolutely not, nobody said this technique didn't involve some overhead,
> both in engineering and scene complexity.
>
> People have been using this since VGXT and customers are happy with the
> results when they implement this. I agree that if you wnat an easy life
> and/or correctly weighted samples then you need a true aa solution like
> a multisample buffer. When I did this using MultiGen is was very
> straightforward.
>
> Cheers,Angus.

Sorry, I wasn't clear on my last comment. We typically don't
provide models to customers; instead they create their own (or
more likely purchase them). For those few models that we do
include it would not be hard to add edges but for not for generic
models.

It occurred to me after my last message that clipping planes
and intersections will still cause problems. I noticed this
when I put up a white ESky to compare colors against and
had it clipping the object.

Thanks,

Scott Herod
scott++at++evt.com


New Message Reply Date view Thread view Subject view Author view

This archive was generated by hypermail 2.0b2 on Thu Jan 21 1999 - 14:13:19 PST

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