s3d_push_material_a - push material with alpha
#include <s3d.h>
int s3d_push_material_a(int object, float amb_r, float amb_g,
float amb_b, float amb_a, float spec_r,
float spec_g, float spec_b, float spec_a,
float diff_r, float diff_g, float diff_b,
float diff_a);
Same as s3d_push_material, but color has alpha value added. Use
s3d_push_materials_a() if you have a lot of materials to push.
Simon Wunderlich
Author of s3d