Re: [Algorithms] View-Depend vs. View-Independent LOD

[Corrinne Y. <cor...@ho...>]

----- Original Message -----
From: "Tom Forsyth" <to...@mu...>
To: <gda...@li...>
Sent: Wednesday, August 09, 2000 2:05 PM
Subject: RE: [Algorithms] View-Depend vs. View-Independent LOD

-- Tom F. described both PM's very well below. I am just adding a little.

> VIPM is where your collapse order is fixed - the only thing the observer's
> position does is choose how many tris to expand/collapse to.

-- VIPM generally has a higher degree of precomputability.

> VDPM varies the order of collapse depending on where the view is, so bits
> further away from the camera get collapsed before bits near the camera -
> stuff like that.

-- VDPM theoretically has fewer screenspace collapse artifact. It generally
has higher realtime computation costs.

-- For both PM's evaluate your PM marching costs versus your rasterization
costs. If marching costs you more than just rendering them, render them out.
:)