help display

[giovabite]

hello to all, I have a problem with viewing in the shaded and rendered views
at first the model did not give me problems, then, at some point the textures in the three-dimensional views began to get high; and if imposed the view rendered some elements even disappear.
I don't know what happened, but I don't think it's a graphic card problem. I tried to open the file also from other pcs, but it's always the same thing. I think I accidentally changed some setting, but I don't know how to fix it.
allego of demonstration images: in the wireframe view it can be noticed that the model looks good, whereas if imposed the rendering view there are even elements that disappear

 

[TECNOMODEL]

Did you try to blow this up?

Sometimes it solves the problem.

 

[giovabite]

Yes, I tried to explode, to convert, to copy and paste into a new document, but nothing changes.. .

 

[salax]

Are you using the rhino rendering engine?