/*
 * Example rayshade input file describing a single texture-mapped sphere.
 * To use, feed to the C pre-processor, and then to rayshade.  Depending
 * on your system type, this probably means doing something like:
 *
 *		cpp thisfile | rayshade <options>
 * or
 *
 *		cc -E thisfile | rayshade <options>
 * 
 * Note that using cpp means that, in addition to macros, you can use #include,
 * #define, #ifdef, etc. in your input files.
 *
 * C. Kolb 9/89
 *
 * $Id: planet.ray,v 3.0.1.2 89/12/06 17:06:49 craig Exp $
 *
 * $Log:	planet.ray,v $
 * Revision 3.0.1.2  89/12/06  17:06:49  craig
 * patch2: Changes to show use of cpp.
 * 
 * Revision 3.0.1.1  89/11/28  13:57:21  craig
 * patch2: Decreased intensity of planet's ambient color.
 * 
 */
#define EXPAND(x)	scale x x x

#define BLACK		0 0 0
#define LACUNARITY	2.
#define OCTAVES		6

screen 256 256
light 1.0 0.9 0.8 directional 1. -1. 1.
eyep 0. -4. 0.
surface basesurf .06 .05 .04 .9 .85 .8 BLACK 0 0 0 0
sphere basesurf 1.0 0 0 0
	texture fbm 	0.		/* offset */
			1.		/* scale */
			0.3		/* h */
			LACUNARITY	/* lambda */
			OCTAVES		/* octaves */
			-.2		/* thresh */
			planet.map 	/* mapname */
		EXPAND(0.7)