On 10 Dec 99, at 21:43, SUBSCRIBE JAVA3D-INTEREST pet
wrote:
> dear all
> i am a beginner. so want to ask some simple question.
> i don't know what is normal? can anyone exaplain to me.
> is that related to the rotate axis ?
>
_A_ normal Peter. When you have a surface, then any line which
is perpendicular to the surface (ie straight up from the surface) is a
normal.
You need this for lots of things. If you don't have normals provided
for a surface, then the system can't work out colours and so on. In
Java3D normals are taken at the corners of a triangle or other
surface component (these are vertices).
Avoid the Gates of Hell - use Linux
Tony Burrows
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