Why so slow?

[siemen]

I had the same question on another topic the other day.

@siemen

Interesting. Just out of curiosity, what is the logic behind this? Can you explain why this happens when it’s far from the origin?

Here’s the reply I got with a few links that explain the mechanics behind this.

Odd result with booleans on closed polysurfaces

This has to do with the way that Rhino 5 creates display meshes. Rhino 5 uses single-precision floating point numbers for these - Rhino 6 uses double-precision. A lot has been written here on the topic. A few links: