lava

[cb LLC]

Hi,
Are new versions fixed where dark spots of lava can travel with liquid like in houdini? https://youtu.be/iqkTNSoG95M

THnaks

[Svetlin.Nikolov]

Not sure what you mean by fixed, since there was never an issue as far as I know. You mean you want to advect colored lava, and lava with variable viscosity, you could do this since Phoenix 3.05...

[cb LLC]

Not sure what you mean by fixed, since there was never an issue as far as I know. You mean you want to advect colored lava, and lava with variable viscosity, you could do this since Phoenix 3.05...

Hi For some reason when we apply noise with hot and cool texture it does not flow with lava making it unrealistic.

[Ivaylo Katev]

Hi For some reason when we apply noise with hot and cool texture it does not flow with lava making it unrealistic.

I really doubt that one can achieve good lava using texture, even if you manage somehow to generate it and assign it to some advectable channel (let say RGB for convenience), the result will be miserable, the colored spots will not behave as solids, like the real lava does, they will be deformed and stretched during the movement. For good loking lava you have to use particles, may be foam is the best option, because its particles have the ability to stick to each other.

[Svetlin.Nikolov]

If you want to just fake the lava colors using a texture that is transported with the fluid, without actually simulating different rgb and different viscosity, it's something we are currently working on implementing and it will be in Phoenix soon. It requires you to be able to simulate UVW coordinates and let them be transported with the fluid. However, I believe specifically lava would definitely look and behave more realistic if you simulate it with varying rgb and varying viscosity - this way you'd have chunks and strings or denser fluid in between the more liquid lava.

[cb LLC]

If you want to just fake the lava colors using a texture that is transported with the fluid, without actually simulating different rgb and different viscosity, it's something we are currently working on implementing and it will be in Phoenix soon. It requires you to be able to simulate UVW coordinates and let them be transported with the fluid. However, I believe specifically lava would definitely look and behave more realistic if you simulate it with varying rgb and varying viscosity - this way you'd have chunks and strings or denser fluid in between the more liquid lava.

Thank you, As far as RGB I asked otoy many times but they still dont support. I need to look into vray GPU