I have a number of custom objects which is then fed into the DisplayConduit. I would like to keep them from drawing if they are not viewed by the viewport. Couldn’t find the correct means to do it. I tried the RhinoViewport.GetFrustum() method, but couldn’t get any idea about how it functions at …

Hello, I recommend Rhino.Display.RhinoViewport.IsVisible. I use it on hundreds of thousands it works great jmv

How can I test if an object is within the active viewport?

kitjmv (jmv) January 2, 2023, 5:36pm 8

Yes !

I don’t know, but I haven’t read the documentation.
My approach is stupid, if it’s red, it’s not good. If it’s not red, it’s fine

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