Forums Houdini Indie and Apprentice New Polyextrude and normals

New Polyextrude and normals

   3427   4   0
User Avatar
phtj
Member
224 posts
Joined: June 2009
Offline
 
It seems that the new Polyextrude node ignores any normals that you create explicitly. For example, see attached file.

I create some point normals, and then use Polyextrude to extrude using “Extrusion Mode = Point Normals”. However, the resulting extrusion ignores the point normals I created.

Is this behaviour correct?

Attachments:
test_polyextrude.hipnc (55.3 KB)

Patrick
 Report
User Avatar
Enivob
Member
2536 posts
Joined: June 2008
Offline
 
It probably is correct. If you select the PolyExtrude node and scroll down to the bottom you will discover that the node is Adding Vertex Normals to the result and removing point normals. Turn this off if you just want to keep point normals from the input geometry.
Using Houdini Indie 20.0
Windows 11 64GB Ryzen 16 core.
nVidia 3050RTX 8BG RAM.
 Report
User Avatar
BabaJ
Member
2038 posts
Joined: Sept. 2015
Offline
 
I think he's right (phj), unless there is something else one must do, it looks like you can't extrude along a user defined normal.

Ticking off what Enivob says doesn't work.

Attachments:
Set Normals.hiplc (69.4 KB)

 Report
User Avatar
tamte
Member
8551 posts
Joined: July 2007
Offline
 
Just change the parameter next to Extrusion Mode Point Normal from Precompute to Existing, or if you have other attribute than N you want to use then to Attribute and specify it

cause Precompute will, ehm, precompute it's own normal
Tomas Slancik
FX Supervisor
Method Studios, NY
 Report
User Avatar
BabaJ
Member
2038 posts
Joined: Sept. 2015
Offline
 
Hmm…I swore I tried that…thanks for the reminder.
 Report
  • Quick Links