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Technical Discussion An open question and answer forum to discuss specific technical issues with the Houdini family of products.

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Increment values with keyboard
By daveb1983, Nov. 21, 2025 1:13 a.m. Last post by daveb1983 on Nov. 23, 2025

2 Replies

641 Views

Nov. 23, 2025 5:01 a.m.
daveb1983
color transform with OpenImageIO TOP node
By jim707jim707jim, Nov. 23, 2025 4:44 a.m. Last post by jim707jim707jim on Nov. 23, 2025

0 Replies

558 Views

Nov. 23, 2025 4:44 a.m.
jim707jim707jim
FLIP Simulation Losing Volume Over Time Particles Disappea
By mante.declercq, Nov. 14, 2025 2:27 p.m. Last post by lucap1 on Nov. 22, 2025

2 Replies

1902 Views

Nov. 22, 2025 7:40 p.m.
lucap1
How to create a Quick surface material through Python
By Mohanpugaz, Nov. 20, 2025 2:52 a.m. Last post by Mohanpugaz on Nov. 21, 2025

4 Replies

1321 Views

Nov. 21, 2025 2:22 a.m.
Mohanpugaz
Hair Guide Deform always offsets hair
By Jerv, Nov. 1, 2025 3:52 a.m. Last post by Liesbeth_Levick on Nov. 20, 2025

2 Replies

955 Views

Nov. 20, 2025 7:15 p.m.
Liesbeth_Levick
Otto Muscle and Bone Textures
By glensandness, Oct. 17, 2025 4:27 p.m. Last post by Liesbeth_Levick on Nov. 20, 2025

1 Replies

667 Views

Nov. 20, 2025 5:50 p.m.
Liesbeth_Levick
Set HDA Processor in TOPs using workitem attributes
By ben5ch, Nov. 20, 2025 12:06 p.m. Last post by ben5ch on Nov. 20, 2025

0 Replies

344 Views

Nov. 20, 2025 12:06 p.m.
ben5ch
How to modify the Network Editor Look
By Julianwood, Nov. 19, 2025 4:51 p.m. Last post by Julianwood on Nov. 20, 2025

0 Replies

409 Views

Nov. 20, 2025 11:46 a.m.
Julianwood
Correct way to export a point3d[] (64-bit) attribute to USD
By vinayfx123, Nov. 15, 2025 2:02 p.m. Last post by Heileif on Nov. 19, 2025

3 Replies

661 Views

Nov. 19, 2025 10:58 p.m.
Heileif
How to Optimize Simulation Performance Inside an HDA?
By tuan6yqibz, Nov. 19, 2025 2:33 a.m. Last post by tamte on Nov. 19, 2025

1 Replies

531 Views

Nov. 19, 2025 3:42 p.m.
tamte
Flip SOP add more particles without reseed
By mzigaib, Feb. 12, 2025 9 a.m. Last post by mzigaib on Nov. 19, 2025

8 Replies

2488 Views

Nov. 19, 2025 8:49 a.m.
mzigaib
Houdini on Hyprland
By Ron1996, May 22, 2024 9:14 a.m. Last post by ajnsan on Nov. 19, 2025

2 Replies

4499 Views

Nov. 19, 2025 7:20 a.m.
ajnsan
Trigger Animation in DOPnet
By BSwarth, Nov. 18, 2025 7:30 p.m. Last post by BSwarth on Nov. 18, 2025

8 Replies

1110 Views

Nov. 18, 2025 10:35 p.m.
BSwarth
best way to "lock" an arbitrary curve to the origin?
By Dougie0047, Nov. 18, 2025 6:09 a.m. Last post by Dougie0047 on Nov. 18, 2025

2 Replies

832 Views

Nov. 18, 2025 1:14 p.m.
Dougie0047
UV Scale Not Working
By jakeschatzberg3, Nov. 10, 2025 8:55 p.m. Last post by lilylart on Nov. 17, 2025

1 Replies

653 Views

Nov. 17, 2025 3:26 p.m.
lilylart
PE_heightfield_paths_2.0 hda - Project Pegasus
By DevoStevo, March 1, 2024 8:32 p.m. Last post by iamchriswick on Nov. 17, 2025

2 Replies

1553 Views

Nov. 17, 2025 3:20 p.m.
iamchriswick
Multiparm button instance question
By Integral3D, Nov. 16, 2025 2:06 p.m. Last post by tamte on Nov. 16, 2025

1 Replies

481 Views

Nov. 16, 2025 5:22 p.m.
tamte
Karma pre-compile not finishing
By sd_tony, Nov. 16, 2025 6:09 a.m. Last post by sd_tony on Nov. 16, 2025

0 Replies

412 Views

Nov. 16, 2025 6:09 a.m.
sd_tony
Gamepad Camera with a PS4 controller - the correct mapping
By evanmathis, Nov. 15, 2025 2:03 p.m. Last post by evanmathis on Nov. 15, 2025

0 Replies

523 Views

Nov. 15, 2025 2:03 p.m.
evanmathis
Karma viewport vs Karma render -emission
By jeffMc, Nov. 15, 2025 9:43 a.m. Last post by jeffMc on Nov. 15, 2025

0 Replies

783 Views

Nov. 15, 2025 9:43 a.m.
jeffMc

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