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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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Hair generation penetrating the mesh
By Nicolas D, Dec. 9, 2021 5:31 a.m. Last post by dany27227 on Jan. 30, 2026

1 Replies

1661 Views

Jan. 30, 2026 10:41 a.m.
dany27227
Pyro solver calculate range issue
By mzigaib, July 25, 2025 10:59 a.m. Last post by mzigaib on Jan. 30, 2026

2 Replies

859 Views

Jan. 30, 2026 8:36 a.m.
mzigaib
Add a Custom button to the Scene Viewer Left Toolbar?
By JohnDoe777, Jan. 29, 2026 5:09 a.m. Last post by JohnDoe777 on Jan. 29, 2026

0 Replies

398 Views

Jan. 29, 2026 5:09 a.m.
JohnDoe777
Python voptoolutils._setupMtlXBuilderSubnet failing
By sekow, Jan. 27, 2026 3:37 p.m. Last post by sekow on Jan. 28, 2026

1 Replies

529 Views

Jan. 28, 2026 9:10 a.m.
sekow
Karma XPU render crashes
By JasonG, Jan. 27, 2026 3:46 p.m. Last post by JasonG on Jan. 28, 2026

2 Replies

788 Views

Jan. 28, 2026 7:22 a.m.
JasonG
Vulkan transparency in viewport still unusable in Houdini 21
By cmoss, Sept. 9, 2025 1:46 a.m. Last post by malexander on Jan. 27, 2026

6 Replies

3491 Views

Jan. 27, 2026 9:45 a.m.
malexander
Eyebag geometry lines are visible beyond the eye.
By acdum1857, Jan. 26, 2026 2:46 a.m. Last post by acdum1857 on Jan. 26, 2026

2 Replies

674 Views

Jan. 26, 2026 1:11 p.m.
acdum1857
Houdini Launcher Login Persistent
By TheNotepadShow, Dec. 21, 2025 5:43 a.m. Last post by Steffen Dünner on Jan. 26, 2026

7 Replies

1567 Views

Jan. 26, 2026 4:33 a.m.
Steffen Dünner
Causes for Particle Explosions in Vellum Fluid
By WolfLegend9, Jan. 26, 2026 4:18 a.m. Last post by WolfLegend9 on Jan. 26, 2026

0 Replies

361 Views

Jan. 26, 2026 4:18 a.m.
WolfLegend9
Unable to transfer to hair group
By gordon_lei, Jan. 21, 2026 2:49 a.m. Last post by gordon_lei on Jan. 26, 2026

2 Replies

570 Views

Jan. 26, 2026 1:03 a.m.
gordon_lei
Auto-reload nodegraphhooks.py?
By wyhinton1, Oct. 6, 2022 2:40 a.m. Last post by martinalex on Jan. 25, 2026

1 Replies

1148 Views

Jan. 25, 2026 8:04 a.m.
martinalex
Auto-fill Materials in Material Library/Solaris issue
By litote, Jan. 24, 2026 10:22 p.m. Last post by litote on Jan. 24, 2026

0 Replies

366 Views

Jan. 24, 2026 10:22 p.m.
litote
Non cloud based renderfarm solutions
By Mark Wallman, Oct. 12, 2025 5:07 a.m. Last post by jlazzis on Jan. 24, 2026

5 Replies

1112 Views

Jan. 24, 2026 5:54 p.m.
jlazzis
Viewer states drawing order
By coccarolla, Jan. 24, 2026 3:33 a.m. Last post by coccarolla on Jan. 24, 2026

0 Replies

321 Views

Jan. 24, 2026 3:33 a.m.
coccarolla
How to change viewport colour of objects.
By isamarsh, Jan. 20, 2020 9:41 a.m. Last post by coccarolla on Jan. 23, 2026

7 Replies

6107 Views

Jan. 23, 2026 12:45 p.m.
coccarolla
MPM best way to add noise
By Veltrynox, Jan. 22, 2026 9:57 p.m. Last post by Veltrynox on Jan. 23, 2026

2 Replies

539 Views

Jan. 23, 2026 11:41 a.m.
Veltrynox
Question on VEX prim function
By litote, Jan. 23, 2026 2:12 a.m. Last post by BabaJ on Jan. 23, 2026

6 Replies

836 Views

Jan. 23, 2026 9:25 a.m.
BabaJ
More interactive curve tools
By in_am_i, Jan. 13, 2026 1:18 p.m. Last post by in_am_i on Jan. 22, 2026

3 Replies

985 Views

Jan. 22, 2026 4:10 p.m.
in_am_i
Poly Extrude Limit Insetting / Common Limit Issues
By tbay312, Jan. 20, 2026 3:48 p.m. Last post by tbay312 on Jan. 22, 2026

3 Replies

734 Views

Jan. 22, 2026 1:57 p.m.
tbay312
Viewer states question
By coccarolla, Jan. 21, 2026 5:49 p.m. Last post by coccarolla on Jan. 22, 2026

1 Replies

438 Views

Jan. 22, 2026 10:15 a.m.
coccarolla

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