Just an idea for developers.
A layer that has the lamp OFF, the content is hiding. Sometimes having a complex project, I do not remember what there is in it. It can be helpful, if we select the layer, in the case is off, it turns it on temporally so that you can be inspected. Now that the 3d editor is much faster, can be a nice feature that can be turned on as optional in document properties.
When you hover over the layer, after let say 2 seconds the inspector pops up. And at that point moving the mouse over other layers the image following the mouse switch mesh preview content.
Yes
I was merely posting another example of layers thumbnail system. [Keeping in mind that Zbrush UI is so very different then Rhino + it being optimised for use with a pen not a mouse. ]
regarding the delay, I would think it is best to give the user a slider to control that, + perhaps it will be good that the popup is only linked to a certain portion of the layer row of functions [perhaps the Light bulb part] so it doesn’t popup all the time when renaming / reordering and so on…?.
Just to mention that there’s a related thread running just now on greying out empty layers and listing content.
It can be done in a second thread when the user hide the layer. At that point, in a second thread, Rhino isolate objects that are in that layer and make a capture with a second camera.