Input format

Sphere:	sphe	xc	yc	zc	r
Material (opaque):	opaq	dR	dG	dB	ks	b	(Level 1)
Material (mirror):	mirr						(Level 2)
Material (transparent):	trpa	kt	n	ks	b		(Level 3)
Material (mapping):	tmap	tex					(Level 4)
----
Light (parallel):	plig	lx	ly	lz	LR	LG	LB
Background:	back	BR	BG	BB
Ambient light:	elig	ke
----
Viewpoint:	eyep	xv	yv	zv
View reference point:	refp	xf	yf	zf
View angle:	vang	ha	va
Image resolution:	size	is
----
Rendering:	rend	(fn)
Quit:	quit

xc, yc, zc, r:	center, (xc, yc, zc), and radius, r, of sphere
dR, dG, dB:	diffuse-reflection coefficient (0 <= dR, dG, dB <= 1)
ks:	specular-reflection coefficient (0 <= ks <= 1)
b:	specular-reflection exponent (1 <= b; integer)
kt:	transmission coefficient (0 <= kt <= 1)
n:	index of refraction (1 <= n)
tex:	texture (file name)
lx, ly, lz:	light vector
LR, LG, LB:	intensity of light (0 <= LR, LG, LB (<=255))
BR, BG, BB:	background color (0 <= BR, BG, BB <=255)
ke:	ambient-reflection coefficient (0 <= ke <= 1)
xv, yv, zv::	viewpoint
xf, yf, zf:	view reference point
ha, va:	horizontal and vertical view angles [degree]
fn:	output file name (image file)

Sample data (LEVEL 1)

Input data

Sample data (LEVEL 2)

Input data

Sample data (LEVEL 3)

Input data

Shading equations

Image file format (SUN color RGB raster file format)

struct	rasterfile {
	int ras_magic;	/* magic = 0x59a66a95; */
	int ras_width;	/* number of pixels in width */
	int ras_height;	/* number of pixels in height */
	int ras_depth;	/* depth = 24; */
	int ras_length;	/* length = 3 * width * height; */
	int ras_type;	/* type = 1; */
	int ras_maptype;	/* maptype = 0; */
	int ras_maplength;	/* maplength = 0; */
} header;

Sample source code (C code)
Sample source code (header file)

Preview software

xview, xv, xloadimage (UNIX)
Adobe Photoshop, Photoshop Elements (Mac/Win)

JAVA document
(By courtesy of Prof. Nishita at University of Tokyo)

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