ClippingSection not showing, Display flickering/refresh

Hi,
I’m having difficulties with ClippingSections. I’ve duplicated a model and made 2 ClippingSections twice, which should be more or less the same. But they don’t display the same in the LayoutViewport. One ClippingPlane does not clip.

All 4 ClippingPlane settings include Selected Objects.
If I turn the parameter of the 4 ClippingPlane to Objects Clipped > All then the 4 sections are clipping in the LayoutViewport.

It’s as if there are problems with ClippingPlane with object selections when there are several of them. The problem doesn’t seem to appear if there are only one or two ClippingPlane.

Maybe it’s because of the way I’ve done it?

ClippingSection.3dm (4.7 MB)
SystemInfoCS.txt (4.3 KB)

Linked to this problem, there are also display problems in the LayoutViewport when the ClippingPlane parameters are set to Selected Object. If they are set to All the display doesn’t bug.

Thanks for your support,
Best,
Pip

Hi,

I haven’t had any response to this problem. I tried to make a simple file. The problem seems to persist.

There are 5 shapes cut with 5 ClippingPlane. Each ClippingPlane contains one object to be cut. These 5 shapes should appear with their respective cuts in black in the layout. ⇩

However, when you double-click in a Detail and exit it, the display of the cuts changes. Some cuts don’t even appear at all anymore. It’s not just a display problem: when printed, two cuts don’t appear. (see video) ⇩

ClippingSectionSimple.3dm (3.8 MB)

Thanks for letting me know if I’m missing a setting!

Hi Pipouille,

Testing on Windows seems OK. I’ll try on MAC in a bit.

A few things…

On SEC_01 the yellowish box (being cut by SEC_00) is in the way, turning off Layer 05 in that detail will fix it.

Similar condition in SEC_02, turning off the Detail Layers resolves it.

Ok, i can repeat your issue on mac, looks like a refresh issue. I haven’t been able to repeat the printing aspect yet.

Hi Japhy,

Thank you for taking the time to look at this.

I understand now! Sorry for the misunderstanding. I had in mind that objects not selected when setting Objects Clipped > Include selected are not considered and therefore absent from the model, as hidden. But this is not the case.
The alternative is therefore to use a depth for the ClippingPlane, to avoid seeing unselected objects.

The remaining problem is therefore the unstable display, which flickers every time there is a movement or zoom. This also happens in perspective view:

Is there anything I can do, or is this an internal Rhino issue?

You can follow along here RH-85033 if you like , looks like some internal draw order bug and shouldn’t take too long.

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