RE: [Algorithms] VIPM With T&L - what about roam

[Tom F. <to...@mu...>]

There were some thinking-out-loud discussions between myself and Charles
Bloom a few weeks ago on a similar subject (doing VIPM with strips rather
than lists). If the archives don't work, and you don't have the old messages
to search through, I could probably dig them up and repost them.

Tom Forsyth - Muckyfoot bloke.
Whizzing and pasting and pooting through the day.

> From: Martin Fuller [mailto:mf...@ac...]

[snip]

> Here's a question though. If I want to VIPM a heightfield is 
> there anyway to
> 
> maintain a minimal indexed triangle strip. By minimal I mean 
> as few strips
> and 
> as few degenerate triangles as possible. A plain heightfield 
> strips very
> well 
> obviously with one strip per tile, (Assuming a quadtree 
> split) with best
> case 
> 1 degerenrate triangle per coulomb. 
> 
> It's all swings and roundabouts, there are cruder LOD techniques for
> heightfields 
> which strip very nicely so I suppose it depends on whether 
> the bottleneck
> becomes 
> the transforms and extra vertex data or the actual polygon drawing. My
> current 
> thinking on PC and PS2 is that it's probably better to maintain longer
> strips and
> draw more polys. Any thoughts?
> Cheers,
> Martin