Reverse face

[aemaster112]

I have a model, when I open it, its black, and all the normals are reversed, I reversed the normal but nothing happened it's still black, I can check the two-sided light, I can see the meshes well but the normals are not able to reverse, then I reverse propagate. the issue is solved with this option, but some of the faces are not reversed, they are in a mesh not on NURBS surface. when I select one surface and reverse the normals as propagate, the selected surface is then reversed but all the other faces are converted in black, please anyone can help me.

[damaggio]

If some of these meshes were connected then you will need to separate them or reverse the normals on selected faces, anything automatic won’t work in this case. You can ask the original modeler to send you a better file or also zip the file here for further help.

[rmf001]

Also make sure to 'unlock normals'

[cavescholar]

Hello,

I have noticed sometimes in large scenes when you have a mesh which is double sided, when you are zoomed out, may appear to be flipped but are not actually flipped. You may be seeing the backfaces through the front faces, if that makes sense.

Also, if auto normals isn't working for you then you may have to spend some time flipping manually, sometimes that's the tedious work of modeling.  "G" key will repeat the last command, so that way you can do it once, and now you just click the face and hit "G", this can speed up the process.

(that's why I have a button in my shelf for reversing normals)

Good luck!

[damaggio]

That would be in the camera clipping plane settings