21
Jun
09

2D/3D Perlin Vertex Noise

Crashes on my laptop, works like a dream on my desktop machine.
More info to come.

The red ones above are from a different version of the effect, that does work on my ageing MacBook Pro (though it’s still slow- 12-14fps at 640 x 360). Note the highlights aren’t as smooth, because I had to drop the resolution of the base mesh to improve the framerates a little on the laptop.

And here’s a clip of the 2D version:

and the 3D one:

and with an environment-map shader (not so successful)

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9 Responses to “2D/3D Perlin Vertex Noise”


  1. 1 brp
    June 21, 2009 at 11:48 pm

    sources? ^_^

  2. 3 jon Hammond
    June 22, 2009 at 10:27 pm

    Holy smokes Alex they look beautiful…so fluid and gorgeous !!!! Bet Mr Black would love to use them !

    • 4 toneburst
      June 22, 2009 at 10:58 pm

      Hi jon,

      how’s it goin?
      Yeah, they’re cool. Wish they were faster on my poor old laptop though 😦
      I’m just uploading a video clip of them in action.

      Haven’t heard from Matt for a while now.

      a|x

  3. June 23, 2009 at 2:50 pm

    Oh. Ok. Yeah, thats pretty. Lovely. Very nice lighting.

  4. 6 toneburst
    June 23, 2009 at 3:12 pm

    Cheers vade!

    It’s just a basic phong directional lighting model really. The main issue (isn’t it always) was getting the normals working properly. I’d love to think there was a better way to do it than the brute-force ‘neighbours’ method ( http://tonfilm.blogspot.com/2007/01/calculate-normals-in-shader.html ) I’ve been using, but if there is, I don’t know how to do it.

    a|x

  5. June 24, 2009 at 7:10 am

    Oh, lovely, thanks for sharing that link. Thats very useful.

  6. 8 toneburst
    June 24, 2009 at 9:21 am

    Hi vade,

    you can see the technique in action in the sourcecode in the next post.

    a|x


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