D3D mipmap quality?

D3D mipmap quality?

Post by Bob Nippl » Sun, 05 Apr 1998 04:00:00



Are there any cards whose d3d drivers pass the
ziff-davis 3d winbench mipmap quality tests?
I haven't seen any that do, so far.

Which d3d games use mipmapping?
Do any use trilinear?

 
 
 

D3D mipmap quality?

Post by by any other nam » Sat, 11 Apr 1998 04:00:00




> >Are there any cards whose d3d drivers pass the
> >ziff-davis 3d winbench mipmap quality tests?
> >I haven't seen any that do, so far.

> >Which d3d games use mipmapping?
> >Do any use trilinear?

> A lot of cards pass the test.  Keep in mind that the results your card
> gets in 3D Winbench 98 can be completely different from the first
> reference (and can actually look quite horrible) and still pass wth
> flying colors.  There's several different "passing" results with that
> one.

> Alf
> STB Tech Support

You're absolutely right.  Results can look horrible and
still "pass" because the human looking at the screen decides
what passes.  The machine can't judge quality.
(unlike openGL which has CONFORMANCE TESTS)
From the winbench docs:

"...you interact with the 3D Quality suite by identifying how well or
poorly the
 system rendered the scene.

... The wizard asks you to judge how well
 the feature displayed."

There are several "passing" images to choose from, some of which look
worse than others, e.g. per-polygon mipmapping (yuck), but you are
asked to include qualifying comments in the results.
So rephrasing Mr. *'s question, are there any cards which match the
first
"correct" reference image?  What did they use to make the first
reference
images? paintshop and an airbrush?

 
 
 

D3D mipmap quality?

Post by Carl Muelle » Sat, 11 Apr 1998 04:00:00



Quote:>[...]
>So rephrasing Mr. *'s question, are there any cards which match the
>first "correct" reference image?  What did they use to make the first
>reference images? paintshop and an airbrush?

In theory, they could have written a software renderer designed for
high-quality rendering.  Or, they could have found a high-end graphics
card that correctly implements these techniques.