"My hunch is that you may have disabled the display of curves for the Top viewport. Check the Display Panel when this view is active. If it only happens with one file, please send that 3dm too if you can.
"Try the command Orient3Pt after you import the curve. You'll first pick three points on the closed curve. An end Osnap and two near snaps will work for instance. You'll then be asked for the corresponding orientation points which will use…"
"Try running the Neon installer again with the 'repair' option. Have Rhino closed when doing this and if it doesn't work, let us know the Rhino 5 version you're running please as well as the Neon installer version.
The PC version of Rhino will have the most options for you right now. I'd suggest using the free Grasshopper plugin to manage ring sizes while experimenting with design options. Check out this site which is a community dedicated to…"
"Thanks, I think I understand and I'll bring it up with the developers. The issue appears to be that you'd like copies of dimensions to be unique and not instanced specifically if a style is not assigned. If a style is assigned prior to the…"
The Dimension Style is what is driving these properties not the dimension itself as an object. Try clicking the 'save as new style' option for the dimension after you copy it. This will prevent the original dimension from…"
"This is working here so I think it must be something system specific on your side. I just moved the lights around a bit, made a ground plane and turned on the skylight for the attached example. Rhino Render was the active render plugin.
Try the command ApplyEdgeSoftening after joining the surfaces together. In Object Properties you can then edit the size of the softened edge in the edge softening controls for that selection. The proper way to make it smooth is to model…"
Can you attach a 3dm file? If Rhino Render is the active render plugin and you make a Spot light for instance, you'll be able to change the color of it in Object Props>Light when it is selected. I'm not sure how the Vray plugin…"
BooleanUnion will work here but the perfectly coincident cylindrical surfaces are causing it to fail. If you scale the interior cylinder very very slightly (e.g. 1.0001) it will work I bet. Coincident surfaces are not always an issue with…"
This is dependent on the rendering engine used and advanced plugins like Vray will have a few options. You could make a sphere for instance just behind the point light and assign a light emitter material to that sphere. This will make it…"