It is my first VOP SOP and I need to get the number of primitives in input 0. I have seen a function “int nprimitives( string filename )” and it seems to work only with a filename. Is there an equivalent with an input that I have not seen? And moreover, I'd like not to go into coding already, so if there is such an equivalent, is it accesible within VOP? or only with VEX functions?
and actually I am still not clear with the differences between VOP and VEX. are all VEX functions wrapped into VOP? when do I need to go into coding instead of making a visual graph?
thanks in advance for a few hints about this