Re: Billboard Problems

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Angus Dorbie (dorbie++at++sgi.com)
Mon, 25 Oct 1999 11:00:31 -0700

Billboarding typically happens around a vector (usually Z) if you make a
significant difference to the projected direction of this vector over a
short period of time (eg looking down on a z axis billboard) then the
object will appear to jump.

Perhaps this is your problem.

Cheers,Angus.

Bae-Shi Huang wrote:
>
> I have been having a hard time with the billboard problem. I created two
> boxes by using performer and I billboarded one of the boxes and made
> another a simple box. However, it seemed that there is some problem with
> the billboard library. When I rotate the two objects that I created, I
> found that they jump around. Worse yet, everytime it loads with
> different conditions, including position and rotation. Can anyone tell
> me what the problems are?
> Any help will be most appreciated.
>
> Bae-Shi Huang
> -----------------------------------------------------------------------
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-- 
"Success is the ability to go from one failure to another with
 no loss of enthusiasm."    -    Winston Churchill.


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