[Papervision3D] Hemispherical heightmap

[Miguel Angel]

Thanks Roy cool demo....
  ----- Original Message ----- 
  From: Roy Wiggins 
  To: Carlos Ulloa 
  Cc: Papervision3D at osflash.org 
  Sent: Sunday, April 15, 2007 9:30 AM
  Subject: Re: [Papervision3D] Hemispherical heightmap


  Thanks :D I'm really interested in the possibilities for procedural 3d in papervision. You can use a plane to do things like graphing sine waves; looks really cool! I've been mulling over a subdivided plane whose vertices spring to each other; I imagine that would make a sort of cloth-type shape. I know how to do simple springing in 2d, but not 3d, so I'll have to figure that out first. 

  I think I'll upload the full source of the hemisphere tomorrow, in case anyone wants to brave the commentless morass it's become and do something else with it.


  On 4/15/07, Carlos Ulloa <c4rl054321 at gmail.com> wrote:
    Excellent Roy. Heightmaps are so cool to work with. Great work.

    C4RL05
    // noventaynueve.com 
    // papervision3d.org



    On 15/04/07, Roy Wiggins < bungadunga at gmail.com> wrote:
      Having more fun with heightmaps again:

      http://roy.wigginsworld.org/papervision/AS3HelloLand.html 

      I took a plane and warped it into a hemisphere- quite tricky. I did it the way I did so the texture wouldn't bunch up at the poles. Unfortunately, that also means I can't tile it across a whole sphere: a tiling texture is essentially a torus, so it's a mathematical impossibility as far as I know. I've settled for mirroring it, but next I hope to warp the plane into a torus instead. 


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