A problem I've faced in blender several times, how can I get rid of it?

[alidr7]

Hello,

When I finish making a model , and texture it, sometimes I get something like this:





And it really pisses me off since I got to remodel the whole object without knowing what causes the problem!

[MentaL]

[HellSniper]

Faces are Signlesided unless you tell them to be Twosided.
Tough what you need to do is to Flip the Faces Normals.
As your Normals are Inverted at the trigger.

Btw, Blocky more.
Just sayin.

[alidr7]

Faces are Signlesided unless you tell them to be Twosided.
Tough what you need to do is to Flip the Faces Normals.
As your Normals are Inverted at the trigger.

Btw, Blocky more.
Just sayin.

You're so great ;o , also thanks for the advice about blocking ;].