Emitting from a animated texture map. deriving colour from map also.

[jason macza]

Hi Chaos user group. I'm new here.

I'm trying to learn how to emit smoke from an area of geometry defined by a map. (Animated fractal map)

I also want to know how to have the colour of smoke can be defined by the map. So for example, A camera projected image is emitting smoke so the colour is driven by the camera projection.

Thanks for your help.

Jason.

[Ivaylo Katev]

Hi Jason,
the smoke emission can be controlled by the map slots of the source helper, you can put it into the discharge slot, or in the smoke slot, or in both, test which one produces better result.
the smoke color may be controlled by selecting "texture" in the "based on" option in the smoke color panel

[jason macza]

Thanks Ivaylo.

[mzwarg]

Hello,

New here so apologize in advance but I have searched the forum and watched as many tutorials as I can find to not ask a redundant question...

I am simulating a fire growing from a fuel tank on a vehicle that encompasses the entire vehicle. I am working with a fire expert so the results need to be as physically accurate as possible. Working with the expert I have created a series of maps in Mudbox to define the area of discharge over time on the geometry. I then tried animating mix maps in 3dsMax. That yielded a sharp 'pop' in the transition despite the transitions animated over several seconds? So I thought it was maybe a mix map 3dsMax issue and then took the maps into After Effects and animated the transitions and rendered out an image stream. I got the same results of very sharp transitions.

I am suspecting that Phoenix discharge map only works on pure white and black values and my maps may need to change to not have any gray values?

Thank you for any help you can offer.

[Ivaylo Katev]

i saw you have separate thread, let continue the discussion there