[Papervision3D] I got blackout

[Frank Weinhold]

Hi katopz,
 
There's nothing wrong in the lookAt Method. You just need to set a
up-vector for your view. The standard up-vector for the lookAt Method is
(0,1,0). So if you look exactly up or down, like in your special case,
both viewing-direction and up-vector are parallel. 
You can fix it like this:
 
var upDir:Number3D = (camera.x == cube.x && camera.z == cube.z) ? new
Number3D(1,0,0) : new Number3D(0,1,0);
camera.lookAt(cube, upDir);
 
Cheers
Frank
________________________________

Von: papervision3d-bounces at osflash.org
[mailto:papervision3d-bounces at osflash.org] Im Auftrag von katopz
Gesendet: Donnerstag, 13. September 2007 09:19
An: Papervision3D at osflash.org
Betreff: [Papervision3D] I got blackout


i got this problem when try to do this
http://sleepydesign.com/labs/as3/PaperVision3D/MayaCameraControl/ 
and try press green cone for trouble
 
u can try this problem in
http://papervision3d.googlecode.com/svn/trunk/as3/trunk/examples/Cube/ma
in.as
 
then replace line#133 with
 
 private function update3D():void
 {
  //cube.rotationY = container.mouseX / 2;
  //cube.rotationX = container.mouseY / 2;
  
  camera.x=0
  camera.y=1000
  camera.z=0
  

  
  // Render
  scene.renderCamera( this.camera );
 }
 
and all thing blackout don't know why, maybe something wrong in lookAt
method
 
anyway you can try replace camera.x=0 with camera.x=container.mouseX/2; 
and try to move mouse to center (x=0), it's gone black at that point too
 
quick test here :
http://sleepydesign.com/labs/as3/PaperVision3D/MayaCameraControl/Cube.sw
f
 
thx!

katopz
http://www.sleepydesign.com/
 
 
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