killing arnold in linux

sometimes arnold will freeze on you in houdini...
In Linux, open up a new terminal and type -

and maybe, just maybe you'll be able to get Houdini to respond again.

 killall hick-bin will also work

 

pkill hick

 

cryptomatte arnold houdini

 

I always forget how to do cryptomattes in Arnold & Houdini

seperated AOVs eg(z depth at 32 bit)

Half precision and 32 bit for z depth 

16 bit half precision but utility passes in 32 bit. 

- on your AOV, tick Separate File
- set the filepath to the same location as your beauty render but with the name of the pass suffixed, e.g. for the Z depth it might be: _$HIP/../../render/$OS/$HIPNAME/`$OS`_Z.$F4.exr_
- set Precision to 'Float 32 bit'