I’m trying to make an illustration of some folds in paper for children. I thought Rhino would be a great tool to do it in, but I’m having a lot of trouble getting the visualization to look right.
It’s due to the fact that when you fold paper in half, now you have 2 planes that overlap on the same plane and, from past reading, Rhino seems to struggle with this display-wise.
I want the rendering to look like a piece of paper. If you fold a paper, you see the edge on one side, but on the other side you don’t.
I’ve tried simulating it with planes and curves, but I lose a lot of the benefits of being able to use a precision 3D program. I’ve also tried double sided materials, but it doesn’t seem to make it opaque.
I’ve also tried not rotating the fold completely to leave a little air gap, but the problem is subsequent folds are hard to do because they are no longer planar. It would work here, but this is a greatly oversimplified example. In reality there are folds on top of folds.
I’m afraid there aren’t any.
Theoretically, if Rhino only ever worked with planar surfaces, this might work. As soon as you have non-planar surfaces, the display mesh representation of that surface is getting in the way. This mesh will not coincide with the edges at most of the points along an edge. To make it so that an edge gets displayed, all “wires” are biased a bit toward the camera.
-wim
Perhaps you could give the folds some thickness so the surfaces are offset, like real paper. Or even extrude the paper a bit so it’s an actual 3d object.
Okay Wim. I’ll take your word for it. I struggle to understand why-- not because I think you are wrong, just because I’m a perpetual amateur with 3D modeling.
I tried the thickness suggestion Mitch made. It’s not convenient, but seemed to mostly work except at certain angles and zooms I can see a faint line through the bottom of the sheet and don’t know why.
Is there anything I can do about this? Maybe it’s a lighting issue? The light “shining through the solid from the top”? Or if it’s related to your explanation.
