[ REQ 5959]: mail from webmaster

[daemon]

Date: Wed, 7 Aug 1996 10:21:22 -0500 (CDT)
From: mplesac at mailgw.sanders.lockheed.com
To: webmaster at geom.umn.edu
Subject: [ REQ 9238]: Geomview Questions

Date: Wed, 7 Aug 1996 15:21:13 GMT
Message-Id: <199608071521.PAA16025 at freeabel.geom.umn.edu>
Subject: Geomview Questions
To: webmaster at geom.umn.edu (Geometry Center Webmasters)
From: mplesac at mailgw.sanders.lockheed.com
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Message from mplesac at mailgw.sanders.lockheed.com follows:

I recently downloaded Geomview in order to view terrain
 which is represented by triangular polygons.  I 
created a ".off" terrain file and was able to view it 
with Geomview however I have two additional needs which
I wondered whether Geomview (or another Geometry 
Center application) could support.  I am currently 
using an SGI machine.

1) I would like to be able to map textures onto my 
triangular polygons.

2) I would like to be able to override the various 
geometric transformations that Geomview uses in order 
to study the effects of various transformations on the 
output.  This would include perspective 
transformations as well as all the others.
The WEB site documentation does discuss transformations
but I found it too difficult to follow to get the big
 picture.  What I really need is a list of all the
 transformation matrices (with actual matrix elements) 
used and a description of what each transformation
 represents and a vehicle for changing any one
that I need to.  Does this capability exist (partially
or fully)?

3) Does the SGI version of Geomview utilize Open GL or 
just X11 with Motif?

Note: I am fairly new to the field of 3D graphics 
rendering and therefore any assistance is much 
appreciated.

--- Michael Plesac
mplesac at mailgw.sanders.lockheed.com