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Differential curve growth

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On 05.08.2019 at 7:41 PM, Thomas Helzle said:

@jayhem & @btangonan: So I dug out this old file from 2016 and updated it to Houdini 17.5. 

Download it here: Coral_Growth_2019.hiplc

As was said in above post, the rendering wasn't Mantra but Thea Render.

Cheers,

Tom

how to limit simulation to geometry?

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Hey guys, I have been seeing all the posts on this topic. I'm trying to implement the same thing using an SOP solver using VEX. 

My approach is typical, I run a wrangle node over the points, where I calculate the average vector for each point to determine the position of the current point for the next iteration. After this wrangle node, I append a resample node which will resample the curve on each frame and this creates endless growth. 

So, instead of resampling on each frame, I would like to divide the curve when the distance between two consecutive points has reached some threshold value that I set before. I don't know how to make this division using vex. I have attached my file below. I just can't figure out how to add a point between those two consecutive points and change the point number in the right order.

Line_growth_01.hipnc

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