how to animate a powerhose cleaning dirt

[tom182]

I need to animate a scene where a pressure washer is blasting caked dirt off a concrete slab and was wondering what way to go about this.
the concrete slab can be totally caked in the dirt and I will need this grime to be blasted off by the water jet.
The water jet inst a problem but rather the grime being blasted off from a localised area (i.e. where the jet is) the pressure washer/waterjet will be moving arounf the slab to reveal a clean one. Dont have any fancy particle plugins not yet anyway!
Disintegrating object was my first thought ?? but would probably have to slice up slab to widths equal to water jet so it appears that the jet is removing the dirt in the local affected area, any thoughts on a better way?
thanks
Tom

[Morne]

Isnt there a demo of Rayfire that can help with this?

Otherwise PFlow would be a good start also. Get yourself the Allan Mckay DVD's, plenty tips there

[Neilg]

use a wetmap generated from pflow or fluid software - do the mud as a vray material with displacement in a blend with the tiles material and have the wetmap as a mask in the blend amount. if you generate new particles where the powerhose hits you can have the mud look like it's being blasted away.

snowflow could do it too - https://www.youtube.com/watch?v=nkkKG-sXOaw
it uses geometry collisions to create a mask. once your hose animation is done, make a temporary object the size of the water jet to link to it, make this map, then delete the temp object.

[steveblake]

http://www.scriptspot.com/3ds-max/sc...-texture-maker

[tom182]

gone down the pflow route with a wetmap, looks promising to getting results,
cheers