I'am referring to the vectors used by the do_diffuse and do_specular

void do_diffuse (FINISH *Finish, RAY *Light_Source_Ray,VECTOR Layer_Normal,
COLOUR Colour, COLOUR Light_Colour, COLOUR Layer_Pigment_Colour, DBL
Attenuation);

void do_specular (FINISH *Finish, RAY *Light_Source_Ray, VECTOR REye, VECTOR
Layer_Normal, COLOUR Colour, COLOUR Light_Colour, COLOUR
Layer_Pigment_Colour);

And what about REye is it the vector opposite to Eye (from current surface
point of view) ?
Are they all normalized ? (in fact it will be a great advantage for thing I
am going to do :o))

Thanks for all.

Mathieu

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