Lava - How do you simulate Lava?

How do you simulate lava?

Is there good tutorial or 3rd party library or package for this?

I would look at Mega Friers. They have a liquid simulator. Basically, showing the viscous of the liquid. It might be helpful.

http://www.youtube.com/watch?v=gmCGaYi1RDw

What effect are you looking for, just a normal sort of shader type thing as UnityCoder suggests or something that changes the shape of a mesh in a gloopy way?

The lava shader works well on Unity3, not Unity4. We managed to figure it out by ourselves.

I know that was probably a typo, but “Mega Friers” is a great name for a lava simulator.

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What did you have to change to make it work with Unity4?