Jump to content

Facet SOP ignores group selection


Houdini7

Recommended Posts

Hi,

 

i wanted to use the Facet SOP on a certain selection of points. The node network looks like this:

pic1.PNG.a730ec89fd79e5b98799b516a312c579.PNG

The group parameters are as follows and select four points.

pic1.PNG.2d796db3c6d22f486b3b0c9c550f2534.PNG

The Facet SOP parameter are as follows:

pic1.PNG.237869322c98710b468c4ba98b0271da.PNG

Every option I select in the Facet SOP (e.g. Make Planar) effects all points and not only the selected points. Has anyone an idea why ? Thanks in advance

 

Edited by Houdini7
Link to comment
Share on other sites

Yeah, I suppose the algorithm used to calculate the normals runs through the whole geometry regardless

 

However, you can simply use the group in a wrangle just below to zero out the what you don't want

 

HPrt8zO.png

Link to comment
Share on other sites

@vtrvtr: Thanks. Hmm okay, seems like a big oversight. So it is not possible (without custom expressions) to change cusp angle or make planar locally on a specific group.How do you handle such situations in houdini ? 

Link to comment
Share on other sites

Okay I have found the solution. The Group Type parameter has to be "Primitives":

pic1.PNG.c14568e3d716541ac194d908fa72e40b.PNG

Then the Facet SOP will take only the prims defined in the group. If you switch to "Points", then all points will be processed!

Edited by Houdini7
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...