Posted by Alexei Novikov on February 13, 1998 at 11:47:56:
In Reply to: What is a surface normal?(sorry if its a dbl msg) posted by Pyroman-RR on February 12, 1998 at 21:52:53:
> I keep getting an error in JED about an invalid surface normal. What is a
> surface normal. The textures get all screwed up on the surface so
> the normal must be important. Any help here?
Well, surface normal is a vector of 1 unit in length perpendicular to
the surface. Does it make it any clearer? :-). Surface normal is extremely
important as it's used in every other mathematical operation on surface.
If the surface has invalid normal, and this error persists even if
you save and reload level, then surface itself is invalid in some way.
Typically it happens when the surface is too thin or non-planar.
If you send your level to ABadLevel@DarkJedi.com, I can take a closer
look.
ALex.