File: lighting_shade.h

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#ifndef __LIGHTING_SHADE_H__
#define __LIGHTING_SHADE_H__

typedef GimpRGB (* get_ray_func) (GimpVector3 *vector);

GimpRGB get_ray_color                 (GimpVector3 *position);
GimpRGB get_ray_color_no_bilinear     (GimpVector3 *position);
GimpRGB get_ray_color_ref             (GimpVector3 *position);
GimpRGB get_ray_color_no_bilinear_ref (GimpVector3 *position);

void    precompute_init               (gint         w,
				       gint         h);
void    precompute_normals            (gint         x1,
				       gint         x2,
				       gint         y);

#endif  /* __LIGHTING_SHADE_H__ */