[Pixyz Studio] Apply Cut

Unity Engine
1

Hi.

I’m new to the forum and did not know where else to post this question regarding the Pixyz Studio.

Is it somehow possible to apply a cut done with the “Cuttin Plane” -tool, to the actual 3D-Model?

Thanks and regards.

2

Let’s see… I would recommend perhaps … the Pixyz Studio forums!

3

hm…I’m not an idiot…perhaps…Pixyz was aquired by untiy and all the “Support & Contact” - links are leading to unity.

8398368--1108701--2022-08-29 08_29-[#19555] Apply cut from Cutting Plane _ PiXYZ Software Helpdesk.jpg

4

i think its only for visual cross section, not a boolean tool.

docs seems to suggest that also,
https://www.pixyz-software.com/documentations/html/2021.1/studio/CuttingPlane.html

for actually removing stuff, maybe can do vertex select and delete them? (or use external tools 3ds max/maya)

5

Thanks mgear.

That’s a pity.
The software is really fast in handling big CAD-models, so Ihoped it would somehow be possible to achieve it.
The same goes with the “exploded view” with “really” translates the parts, so I don’t see why not giving the option to apply these new translated points!?
As usually I’m using Cinema4D to do that, and that’s a real pain in the… to do it with.

6

most likely the cutting plane is just a shader discard “trick”, so its not as simple to just remove those vertices, without breaking the uv’s/normals/faces…?
like GitHub - Dandarawy/Unity3DCrossSectionShader: CG shader for unity3D to create a cross section through meshes

i think explosion view simply moves parts “forward” in some axis, so it should be easy to do in pixyz script,
or directly in unity. (if the explode view didn’t have option to “bake” that in)

doing boolean on large cad models with 3ds max is not that simple either, can result bad mesh…

7

My bad!!

Are you looking for geometry cutting stuff, like constructive solid geometry? There is some CSG tooling in the ProBuilder package, another thing that was acquired by Unity and is now available on the Package Mangler.

If it’s not a probuilder object, you will need to “probuilderize” it, which is an option in PB. After that it has the usual intersect, union and difference operators, IIRC

8

The cutting plane tool is for viewing purposes only, but if you want to split the mesh, you could use the Saw Plane function. Here is a step-by-step example of how to use it:

  • Open the functions panel and look for the sawWithPlane function.
  • Set the coordinates for the plane origin, make sure that it intersects your mesh; you can turn on the Manipulate toggle to manually adjust the origin of the plane(have in mind that the origin of the invisible cutting plane is not on the center of it but in the bottom left corner).
  • Assign values to the Plane Normal coordinates to determine the direction of the cut, switch the Mode to “Saw And Split,” and click the execute button.

You should end up with a mesh divided based on the orientation of your cutting plane like this: