Transparent when Rendering.

[Anonymous]

Hey guys im new on this forum and looking forward to discuss here. 

I have some problem i would like to share. While modeling some objects turned to another color, darker, and when i rotate around it makes some grainy effect. When i render, those objects that became darker and grainy are transparent on the render screen. 

This are some screenshots from the problem. As you can see the upper towers became darker and grainy, which was not the case before

This is what happens when i render 

The upper towers are transparent 😕 Any sollutions to this problem? Thanks in advance. 

[PROH]

Hi. Looks like a material problem. Assign a non transparent material to the objects.

Hope it helps

[AlexRichards · Accepted solution]

It looks like the Normals are flipped on those elements.  Right click on the object and in Object Properties, select the 'Backface Cull' option on.  That will show up any flipped Normals in the viewport so you can fix them before rendering.

Here's the Help page regarding Normals:

http://docs.autodesk.com/3DSMAX/16/ENU/3ds-Max-Help/index.html?url=files/GUID-C420859B-D44E-469F-9A2...

Alex