Re: [Virtools] rotating 3d sprites

[alan price <alan@irc.umbc.edu>]

Here is one solution of which there are probably variations:

Use hierarchies:

1) Create a 3d frame and make the 3d sprite child of the 3d frame. 
Make the 3d sprite 'orientable' (not billboard).
2) Add a BB "look at" constraint to constrain the 3d frame Z
axis to the camera, with hierarchy turned on. Set "follow
speed" high.
3) Add a BB "rotate" to rotate the 3d sprite - using the 3d
frame as its reference axis.

The 3d sprite will spin on Z and always face the camera.


At 05:00 PM 5/21/2002 +0200, you wrote:
> Hi
> all,
>  
> how can i rotate along local z axis billboarded
> 3d sprites ?
>  
> I tried these possibilities:
>  
>     - only a rotate BB on
> billboarded 3d Sprites -> no rotation
>     - a loop with two BB :
> billboard BB and then rotate BB, applied on orientable 3dSprite this time
> -> no rotation too !
>  
>  i tried also to change priority of BB in
> second method, but nothing works...
>  
>  Can you help me ?
>  
> thanks.
>  
> Eric Pouliquen.
>

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Follow-Ups:

• [Virtools] Particles / follow curve
• From: "Arnaud Muthelet" <arnaud@simteam.com>

References:

• [Virtools] rotating 3d sprites
• From: "Eric Pouliquen" <eric@simteam.com>

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