Materials dont open

hello, i’m starting to use rhino 5 (trial version) and im using some material in my document but everytime i close the document i cant open some materials. I already tried to update the materials preview but thei dont appear. Can someone explain me how to open the document and have the material like i let them before?

When you save the document, there will be a little checkbox at the bottom of the save dialog that says “Save textures” - make sure that is checked…


i choosed that option but it’s doing the same. I don’t now why but wood it’s the only material that dont appears. Glass and concrete are there. In the place that should be wood only appears the name of the wood file in the material library.

Could you post a screen capture of what you are seeing?