Some faces not appearing solid after extruding.

Support Modeling
1

Several months ago, right in the middle of a holiday project, I suddenly had the aggravating problem from hell. Not a show stopper but a real pain in the ass for me anyway.

Suddenly it seemed some faces wouldn’t appear after extruding a face or edge in solid display. But, while I was looking at a ugly half wireframe model in the Edit viewport the render was fine. Hell at one point without thinking I was adding faces on faces. You can imagine how interesting that got as I continued to model. Not being the sharpest tool in the bag I tried everything in the world not having a clue where to really look.

Then one day looking at one of those half and half models with the Properies Pane or N Panel open I unchecked ‘Textured Solid’ under Shaders. By the way the Shading mode was set to GLSL. DAMN! I was looking at a nice solid model. Immediately everything was right with the world. Running naked in the streets and all that.

Evidently while watching a tutorial I had checked ‘Textured Solid’ and not commited the change to memory. So when the problem appeared not being a techno type I was clueless. Maybe this might help someone because it is one aggravating problem.

2

I think you have doubled vertices. Doubled vertices will generally cause that problem. You can get rid of them by pressing W -> Remove doubles.

3

Hey guy thanks for the comment about the doubles. I immediately thought that’s it since I’m guilty of hardly ever removing doubles. Make mental note. However, that didn’t resolve this problem. But, after seeing a comment about normals I checked that. The normal is facing the same way regardless of whether face is showing or not.

I appreciate the help. It seems I simply need to uncheck ‘Textured Solid’ when modeling or just leave it off. Either way I can now see the extruded faces. Thanks

4

‘Textured Solid’ implies backface culling. Backface culling implies that only one side of the face is visible (the one it’s normal is pointing to).