/*
 * ENUM: SE_Shade_Method
 *
 *   This data type is used in <Rendering Properties> instances to
 *   specify the illumination method.
 */

Enumerant Notes

SE_SHADE_METH_NONE

 Non-illuminated shading. Pixel colour is not affected by (spot or
 infinite) light sources. This is sometimes called Fixed shading,
 since pixel colours are fixed and don't change at render-time.

SE_SHADE_METH_FLAT

 Polygon Face Normal is used when calculating illumination of geometry.

SE_SHADE_METH_INTERPOLATED_COLOUR

 Vertex normals and light sources are taken into account when
 calculating illumination of a geometry attribute (a.k.a. Gouraud Lit).

SE_SHADE_METH_INTERPOLATED_NORMAL

 Vertex normals are interpolated as part of the illumination algorithm
 (a.k.a. Phong).