From t-jeffp@microsoft.com Wed Jun  3 19:41:34 1998
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From: Jeff Pierce <t-jeffp@microsoft.com>
To: 3d-ui@hitl.washington.edu
Subject: RE: LOD
Date: Wed, 3 Jun 1998 16:40:42 -0700 
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Status: RO

So it sounds like what is wanted is changing LOD so that instead of
more/less polygons in the mesh, what architects are really looking for are
representations of objects that change as the user moves in and out.

So at a distance, a house may be just a simple shape with detailed gardens
surrounding it.  As you move in, the garden fades away and the external
detail of the house is emphasized. Moving in more, the walls of the house
become transparent and the interior construction details become visible.

Reminds me a little of Pad++.

Jeff


> -----Original Message-----
> From: Ernst Kruijff [mailto:ernst@kwetal.ms.mff.cuni.cz]
> Sent: Wednesday, June 03, 1998 12:47 PM
> To: 3d-ui@hitl.washington.edu
> Subject: LOD
> 
> 
> Hi all,
> 
> As promised to Chris, here a (more detailed) explanation of LOD in
> architecture, unfortunately again not given by an architect... 
> 
> David Kurmann (ETH Zurich) said:
> 
> "however, we were using lod in a context of architecture
> in our courses teaching caad where ' types and instances' 
> were developed. this
> implementation does use lod as levels of refinement when working in a
> top down approach. while top down is widely used in 
> architectural design
> -
> lod is not a mayor topic. it is more levels of abstractions to be able
> to create drawings for certain purposes: 1:500 for landscape and
> environemnt,1:100 for general layouting, 1:50 for details. of 
> course every plan
> then uses an abstraction."
> 
> If more info is needed, I can get it.
> 
>   -Ernst
> 
> 
> .................. Ernst Kruijff
> ................. Westersingel 9
> .............. 4101 ZG Culemborg
> ................ The Netherlands
> 
> ................ (0)345 - 519397
> .. e.p.c.kruijff@stud.let.ruu.nl
> .... ernst@kwetal.ms.mff.cuni.cz
> .. kwetal.ms.mff.cuni.cz/~ernst/
>