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I have a point cloud that a part of it is deformed by an object via raycast.
In the part that is deformed i want that it gets that object material.
And when i move the object those particles that get deformed get the object material and those that ceased to be deformed return to the point cloud material.

Any idea how i should approach this?

hey bullit it is really easy to mix materials in the render tree with a mix node and using an ICE particle attribute value as the weight parameter for the blend. and to assign the attribute is straight forward, if particles are raycasted then atttribute = 1 etc

Thanks Tekano, will look into that.

If this helps anyone i tried with Mix 2 colors and didn't worked.
I created my attribute directly from the hit output port of raycast node, so it was a boolean.
In rendertree i tried putting the boolean attribute with alpha in mix 2 colors node and it didn't worked.
But i was able to get it to work with color switch so all is okay.

Convert it in the icetree before storing it then, from Boolean to integer, from integer to scalar.
If you want to have a smooth transition have this attribute be the amount deformed or distance to surface or something.

Yes converting make it work in mix node. It is still boolean though.

To have scalar i have to check from where/how to get scalar data, i have the locations from raycast node maybe i can convert from there.