Re: MISC: Viewpoints and Cameras

Chris Marrin ([email protected])
Tue, 13 Jun 1995 10:46:06 -0700


On Jun 13, 9:41am, Jason Morph wrote:
> Subject: MISC: Viewpoints and Cameras
>
> In anticipation of modeling tools to graphically support the placement
of
> multiple cameras in a scene, there exists a problem I have that I hope
> can be easily resolved.
>
> What procedures can be used to set up multiple camera viewpoint similar
to
> those in 'The Palladium` ? I`ve tried using the TransforManipBox in
Gview
> for the purpose of obtaining the transformation with unpredictable
results,
> it crashes or locks!

If you're on an SGI machine you can use SceneViewer. Bring your model
into SceneViewer, position the camera and select Save Environment... from
the File menu. This will save the camera to a file as an Inventor node.
To make it legal VRML don't forget to get rid of the "nearDistance" and
"farDistance" fields!

By the way, you give the correct Syntax for the viewpoint hint used by
webspace today. Each camera's name (defined by DEF) is used as the name
of the entry in the viewpoints menu. The '_' character is converted to a
space to make the menu pretty. Setting the whichChild field selects the
camera used as the entry point. This is the first entry you see and is
also placed first in the viewpoint menu. In your example "Camera 2" will
be the entry point.

-- 
chris marrin      Silicon      http://www.sgi.com/Products/WebFORCE/WebSpace
(415) 390-5367    Graphics     http://reality.sgi.com/employees/cmarrin/
[email protected]   Inc.         
         "As a general rule, don't solve puzzles that open portals to Hell."