Visualization problem with Extrusion objects


#1

Hello everyone!
I happen to have this really strange problem with Extrusions. If I install Rhino from the CD, they turn out perfectly ok (image above). But, when I upgrade to SR7, they turn into wireframe visualization in every viewport, in perspective, in isometric, in X-ray, in artistic view and so on (image below)! What to do?
Thank you in advance

Pietro



(Pascal Golay) #2

Hi Pietro- type SelExtrusion and in Properties, make sure that isocurve display is not checked. Does that do it?

-Pascal


#3

Hi @pascal, this is the outcome:


those wireframes are actually boxes, they should be the same colour of the grey solids (which are polysurfaces).


#4

hi Pietro,
upload a couple of those boxes/buildings (both the good and bad ones) so we can take a look.


#5

Dear @carvecream,
here it is. It may be useful to know that in another PC with the same software installed I have absolutely no problems. Could it be an hardware issue, maybe?
Extrusion problem.3dm (2.1 MB)


#6

I don’t know what the problem is. I can repeat it here, I can’t see the shaded ‘bad’ ones. I can’t find any difference between those and the ‘good’ ones.

easy fix though, explode and join, they shade properly now.

interestingly, when i solidpton and move control points on the bad extrusions, they shade properly.


#7

That sure is odd. Another way is SelectExtrusion and then ConvertExtrusion, but doing so in my model it boosts up a good 15MB… not exactly the best thing to do!


#8

If you select the objects and hit RefreshShade, this will re-create the meshes and they will shade (they do here)… They don’t look bad to me though, so this looks buggy…

–Mitch


#9

Well, what would you say?? IT WORKED! Many thanks, @Helvetosaur! But it surely is odd!


(Pascal Golay) #10

It is odd- extrusion objects are supposed to me meshed on the fly - they do not carry meshes like Breps do. I’ll run this by the developer- thanks for the file. SaveSmall and reopening the file also forces the meshing to be regenerated.

-Pascal