Re: Position of object changing

New Message Reply Date view Thread view Subject view Author view

Ran Yakir (rany++at++rtset.co.il)
Tue, 30 Jun 1998 19:04:17 +0300

Kevin A. Pilch wrote:

> Hello All,
>
>
> Our problem is that sometimes the ship seems to jitter, moving as much as
> 0.5 meters each frame. However the matrix that we
> send to Performer when we set the ship's DCS seem to be fine. It is not
> the whole scene that is moving, just the ship model.

This could be the result of using very large (6 digits or more )
coordinates. Since Performer and GL are using floats, you can lose
resolution of you coordinates if they are large enough.

--
 __                                  | Ran Yakir
 /_)  _  __   \  / _   / o __        | RT-SET Ltd.
/ )_ (_(_) )   \/ (_(_/<_(_)(        |
              _/                     |
-------------------------------------+--------------------------------
Phone :                              | E-mail : rany++at++rtset.co.il
  Work : 972-9-9552236  Ext #119     |          rany++at++netvision.net.il
  Res. : 972-9-7489974               |
Fax    : 972-9-9552239               |


http://rtset.co.il/rany






=======================================================================
List Archives, FAQ, FTP:  http://www.sgi.com/Technology/Performer/
            Submissions:  info-performer++at++sgi.com
        Admin. requests:  info-performer-request++at++sgi.com

New Message Reply Date view Thread view Subject view Author view

This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:57:36 PDT

This message has been cleansed for anti-spam protection. Replace '++at++' in any mail addresses with the '@' symbol.