For Houdini optimization nerds I'd like to share “Houdini easy compile blocks”.
It's a simple script which creates for you the compile blocks + update the expressions to use spare inputs ( if needed ) around a for loop or a selection of nodes.
Compiling a for-loop is now one click away
Available for free here: http://cgtoolbox.com/houdini-easy-compile-block/. [cgtoolbox.com] If you have issues with a loop compilation, feel free to send a small hip file if possible, to support@cgtoolbox.com, with the nodes you're trying to compile and I'll have a look !
https://vimeo.com/287152763 [vimeo.com]