Offset Carve SOP Growth

[JAMES2503]

So I have a few curves (in attached GIF) and they all start at the same time and grow using the carve SOP.

I'd like them all to start at different times but from their original positions, (no randomness) just a simple offset.

I don't want to do it for each curve manually, is there an expression I can use?

 

 

[vtrvtr]

Courtesy of the groom library

 

 

per_prim_carve_groom_odf.hip

 

https://i.imgur.com/YpPCZuH.gifv

 

Edited March 2, 2018 by vtrvtr
mp4s are not nice

[JAMES2503]

Thanks for this!

It doesn't quite do what I want though as they all start at the same time, I want them to start at different times

Cheers

[Sepu]

You can use the carve and time offset inside a for each and use the metadata to offset each prim. Here is an example. 

 

CarveOffset.hipnc

[JAMES2503]

Brilliant, just what I was looking for! Cheers!

Just a quick question, in my carve SOP, I have the expression: @Time/7 - detail(-1, "iteration", 0)/18.5

This generates a nice growth but I want it to have bezier like smooth interpolation between the start and end points, how would I add this to the expression?

Edited March 2, 2018 by JAMES2503
wrong expression, oops

[pangzi2015]

Hi , Jim!

Actually , there is a function in houdini's include files.   it's called adjustPrimLength.

so, what you need to do is , in a primtive wrangle, call the function ,like below:

 

the nice thing is , each curve can has a different f@dist attribute , so they can grow differently.  Code like this : adjustPrimLength(0, @primnum, @perimeter, @perimeter*@dist);

 

[JAMES2503]

Thank Pangzi, appreciate the input.

Got another question (yes I'm newish to Houdini) 

I need a solution to push intersecting wires away from each other. I have both the curves and polywire setup, I thought of a solution in VOPs but it didn't quite work.

See below, cheers guys