hi all, I have exported bin seq in houdini, I import bin seq in 3dsmax with PRT Loader. I try to render the bin seq with krakaota ,But nothing(black).however display is normal in 4 views .
I wonder why ?
PS: I try to render in krakatoa with PFlow , Everything is normal.
thanks.
If both RGB and Alpha are black, try this:
*The RealFlow BIN file happens to have a channel called “Density” which Krakatoa uses to define its per-particle volumetric density, but the RealFlow plugins often output as 0.0. This results in particles with no density, in other words totally invisible. If that is the case, you can drop a Krakatoa Channels Modifier on top of the PRT Loader and set its flow to [Input Node: Value > Float 1.0] → [Output Node: Density Channel]. This will reset the Density channel to 1.0 and should make the particles visible, assuming this is the actual issue.
*An alternative solution to the above problem would be to simply resave the BIN file as a PRT sequence using Krakatoa, but without an explicit Density channel in the list of channels to save. This will force the PRT Loader to assume a density value of 1.0 for all particles.
If there is Alpha but not RGB, make sure you have at least one light source in the scene 
I have done as your words .but black still . whether have other way?
thank you very much.
PS: both RGB and Alpha are black
I click “Override Density” , everything is ok.
thanks Bobo again.
Good thinking!
The KCM should have solved the problem though. Not sure what you did wrong.
I think so . Im a rookie for KCM Ill try it with your way again. 