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renderingfarmer
01-06-2004, 12:41 AM
I'm planning out an animation which will include several soap bubbles. It just hit me that I have no idea how to surface something like that. I'm talking specifically about that oily rainbow thing they have going on.

GIS example:
http://www.bambuddhas.com/images/soap/bubbles.jpg

Any words of advice?

Mylenium
01-06-2004, 02:03 AM
I think there was an example of exactly that effect included in the LW CDs (or maybe it was the SIGGRAPH content?). However, it is still simple enough. All you need as a surface with a bump map (this bump map must not ne noticeable at all, it's just used to change the normal direction of the surface) and then apply the ThinFilm and Interference shaders to it. you may also want to add several gradients set to incidence angle or light incidence for even more control.

Mylenium

renderingfarmer
01-06-2004, 09:52 AM
sounds like a plan. thanks.

indchart
01-06-2004, 10:29 AM
commercial plug-in offered by evasion3d

http://evasion3d.com/sp_gallery.html

indchart
01-08-2004, 03:40 PM
a great tutorial by the dbki group

http://www.dbki.de/tutorials/eng/chromatic/index.htm

dablan
01-09-2004, 08:50 AM
You've got a couple of options.

First, try using some simple particles, then apply a surface based Hypervoxel.

The other option is to also use particles with Hypervoxels, but apply sprite images! These are little tiny clipped images that attach to the particles. I think there's even a bubble image in the LightWave content folders. Check it out!