Shading troubles

[red_is_dead]

Hi there, I’m new to this forum and kind of a newbie in blender.

I am currently modeling some assault rifle for a short animation and i’m running across some trouble in my renders.

As soon as I hit the “smooth” button, the shadows are all messed up, and I can’t find out why. See for yourself :

Solid - No problems…

Smooth - Bah !

Here’s the wireframe.

The same thing is happening on other parts of the gun.

If I remember correctly, this happened a few other times with other projects. I never found any explanation or solution to the problem. This is kind of fustrating.

Sorry for any spelling or grammatical error, English isn’t my main language.

[_BackBONE]

Try to recalculate all Normals outside.
(Select all Faces and hit Ctrl/N)

[lucidMonkey]

add some edge loops.

press the K-key while in edit mode

[Fonix_Wircs]

while ur model is smoothed, press the ‘autosmooth’ button, it should be in the same tab as ‘set smooth’ and ‘set solid’.

[red_is_dead]

autosmooth worked, thanks guys