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Houdini7

Facet SOP ignores group selection

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

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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

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@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 ? 

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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

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