L_system_stamping

[Justin K]

 

Hello all.  

I am doing some studies on L systems.  At this point I am trying to distribute a tree built from an l system across some scattered points generated from a grid.  I am using a copy sop for the distribution.  The issue is I want each l system "tree" to be a different seed of the l system and I can't figure out how to do this.     I can generate randomized trees within the confines of the copy sop itself---- I simply  use a stamp function, link this to the seed value in the l system, and each copy I make has a different seed.  Unfortunately this doesn't work when I am using the second input for the copy sop, and copying to preexisting locations.  I realize that this has less to do with L_systems than the nature of copy stamping in Houdini, but I am fairly new to the Houdini, so any advice about this specific situation and the rules of stamping would be helpful.  I have attached an example file.  Thank you.  

 

L_system_stamping.hipnc

[vtrvtr]

Can't you just stamp first on the ground and then do the leaves? 

 

 

 

Edited February 7, 2017 by vtrvtr

[Atom]

I don't think you have your random seed set correctly. You are referencing a channel on Copy1 which does not exist. Check out this modification.

ap_L_system_stamping.hipnc

Edited February 7, 2017 by Atom

[Justin K]

Thank you both.   Seems to me (at least via my understanding) that Atom's idea accomplishes in the script what you suggested.    It did not occur to me to stamp via a randomized point attribute I myself created though---really cool and straightforward----   Ill keep that concept in the tool box I am slowly trying to build.  

And about the copy sop--my apologies--a dumb mistake on my part that occured while I was trying to transfer the info into a cleaner file for your perusal.  

 

Cheers!---continuing on.