Hi,
I have used Houdini for a few years, but have not used these loop block nodes so much in VOP. This is because it's really hard to understand what's happening on the way and how to use input and output exactly, although I understand SOP level's loop nodes well.
Thus, I really appreciate if anyone explain each usage of input and output with typical examples for each block/loop node! For instance, blockA is good for creating primitive line. blockB is convenient with checking nearest points, blockC is same as loop-SOP but faster, etc...
Many thanks!!