istomin Posted January 8, 2021 Share Posted January 8, 2021 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? Quote Link to comment Share on other sites More sharing options...
dtcs Posted June 21, 2021 Share Posted June 21, 2021 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 Quote Link to comment Share on other sites More sharing options...
crispr_boi Posted May 2, 2022 Share Posted May 2, 2022 I still don't understand how to create growth, that is limited to or mostly adheres to growing into two directions. Like variant #8 and #9 in the video "a unified approach to grown structures" https://www.youtube.com/watch?v=9HI8FerKr6Q Changing the frequencies and amplitudes of the volume noise, doesn't seem to achieve this result. Quote Link to comment Share on other sites More sharing options...
Keshaw singh Posted May 23, 2022 Share Posted May 23, 2022 Looks awesome Quote Link to comment Share on other sites More sharing options...
papsphilip Posted September 17, 2023 Share Posted September 17, 2023 On 12/24/2018 at 1:29 PM, Farmfield said: Don't know if I ever posted this one but this is a cool effect as well... awesome!! i'm trying to do something similar, what method did you use? 1 Quote Link to comment Share on other sites More sharing options...
arane93 Posted November 14, 2023 Share Posted November 14, 2023 On 12/24/2018 at 12:29 PM, Farmfield said: Don't know if I ever posted this one but this is a cool effect as well... Woww! I love it! I have tried this but I can't get circles to work on a 3D surface, how did you do it? Thanks in advance!!! Quote Link to comment Share on other sites More sharing options...
arane93 Posted November 14, 2023 Share Posted November 14, 2023 2 minutes ago, arane93 said: Woww! I love it! I have tried this but I can't get circles to work on a 3D surface, how did you do it? Thanks in advance!!! To be more specific, I would like to achieve that pattern that this coral has, instead of growing lines, they are circles. How can I achieve it? Quote Link to comment Share on other sites More sharing options...
arane93 Posted November 14, 2023 Share Posted November 14, 2023 6 minutes ago, arane93 said: To be more specific, I would like to achieve that pattern that this coral has, instead of growing lines, they are circles. How can I achieve it? I have tried to do this, I attach a hip file, but it doesn't seem like the best way, I'm sure it can be done better! Coral_OF_v03_B.hiplc Quote Link to comment Share on other sites More sharing options...
pk1234 Posted May 1 Share Posted May 1 Hey guys, I've been taking a look at the famous video mentioned a few pages back: While lots of techniques have been covered in this thread, I'm a bit lost when it comes to the later variations that "carve" into the surface. The variation 10 (area contraction) can be achieved using the same curvature based growth that's described in this thread (just go in opposite direction), but I can't seem to get the behavior of 12 (point contraction, starts at around 4:13) and 13 (line contraction). Anyone have any ideas how those two effects 12 (point contraction), 13 (line contraction) could be achieved? Quote Link to comment Share on other sites More sharing options...
Moretti Posted October 15 Share Posted October 15 A nice evolution of the concept. Quote Link to comment Share on other sites More sharing options...
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