Hi Guitta,

Here's an example. The model is a cube with a square hole on one face. The normals are facing outwards.

In this situation, if the camera is on the other side of the polygons, the polygons are not visible in the render. That's what happen when you are "on the other side" of a single-sided polygon mesh.

In my example the camera is inside the cube. As the normals are facing the opposite side, it does not appear. In VUE's "polygon mesh options" I can enable "double-sided" ( it's the standard setting). Now we can see the object... BUT... as SMT noticed it (and Phoul a couple of months ago) "everything looks like its under water...as if you are trapped in a block of blue-ish, semi-transparent material".

:) Eric