0

I want to do a boolean operation (Intersect) between a disk and a plane, to get the profile of the disk. My disk is turning slowly by animation. For each frame I need the profile, to do some stuff with a python script.

The problem is, that there are some frames where the boolean doesnt work as espected. But in many frames it works. For example:

  • Frame 149 works (Profile is cut)
  • Frame 150/151 doesnt work (Profile is cut, but the cutting plane is still there - like merge)
  • Frame 152-154 doesnt work (No profile or plane is visible)
  • Frame 155 works

My animation only controls the rotation of the disk. I cannot see any system of working-not-working frames.

To solve the problem I read the following post: The Boolean modifier is not working and do this

  • remesh the disk (from large triangles to the fine mesh you see in the file)
  • check normals (all were correct)
  • remove doubles (14 were removed)

Sadly these "Bugfixes" doesnt work. What can I do to get a proper profile in each frame? What am I missing?

This is a simplified .blend File (EDIT: Now with Camera):

Thanks for your reply! CeDoMain

EDIT:

  • I'm using Blender 2.93.8.
  • I added a Camera to the file to show the profile.
  • I can see the wrong frames in Cycles, Luxcore and also in the Viewport directly. I provide some pictures how some of the described frames look to me: Frame 149 with disk shownFrame 149 with disk shown Frame 149 with disk hiddenFrame 149 with disk hidden Frame 150 with disk hiddenFrame 150 with disk hidden Frame 152 with disk hiddenFrame 152 with disk hidden
CeDoMain
  • 1
  • 1
  • This seems to produced a valid animation for me in 3.1.2 with Cycles, so you may either be facing a bug in the version of Blender you're using, or a Luxcore problem. But you didn't include a camera, so I may have guess a camera position that doesn't show the problem. Maybe place a camera and check if it is a Luxcore problem by rendering just those frames with Cycles? – Marty Fouts May 17 '22 at 18:00
  • @MartyFouts: Please see my edit. I also uploaded a new .blend file with a camera. – CeDoMain May 18 '22 at 14:40

0 Answers0