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AOV_v04 using for mine Projects no errors ..Tricks AOVs_H20_v05.hip AOVs_v04Srle.hiplc

@fencer Thank you! The "aov:" was the trick

dot seems ok

Thank you Konstantin! big fan of your videos!

attribdelete is set as render node already not sure I understand what this issue is, jump to operator shows exact material applied to the node

Nowadays you would rather use the group expand node, though: https://www.sidefx.com/docs/houdini/nodes/sop/groupexpand.html group_expand.hip

thats cool, didnt see the files! he's using the HORIZONS system, which is very accurate but needs data to be cached and interpolated, or fetched over the internet (which may cause issues on a farm). I implemented the less accurate, continuous offline version with the keplerian formulae. Was very interesting diving into this - looking up to the stars at night has become a lot more exciting to me for sure! Btw, for the stars there's a neat recent post on Erwan Leroy's blog!

It has been a long while And today I had need of this, and decided to try again. I think I got it working! It's barebones and not tested extensively (it's waay past bedtime!), would love to hear if there is something I missed! I got the solution from: http://www.flipcode.com/documents/matrfaq.html#Q40 Q40. How do I use matrices to convert one coordinate system to another? extractTransformMatrix_v001.hipnc