metal	"Half-shadow sample"
{
	cond	0,3, 0,1,12;		// distributed ray-tracing
//	cond	0,1, 0,1,0;			// normal ray-tracing

	view	30, 0,0,1, 0,0,5, 30,-100,50;
	ambi	1.0, 0.000,0.000,0.000, 0.000, 0,0;

	attr	light_color=
	{
		color	1,1,1;
		diff	0.30,0.000;
		refl	0.01,100,0.4;
	};
	// 光線源の半径を３に設定しているので、分散レイトレーシングを
	// かけると半影が生成される。
	loc		0,0,25, 3, 1.000,1.000,0.800;

	// ground
	attr	ground2=
	{
		color	0,0.9,0;		// 緑
		diff	1.00,0.000;
	};
	attr	ground=
	{
		color	0.9,0.9,0.9;	// 白
		diff	1.00,0.000;
		checker	10,ground2;
	};
	plane	0,0,0, 0,0,1;

	attr	Orange=
	{
		option	hsv;
		color	25,0.8,0.9;		// H,S,V
		diff	1.00,0.300;
		refl	0.01,80,0.1;
	};
	and		"円柱"
	{
		para	-20,0,0;
		screwy	-20;
		para	0,0,5;
		plane	40,0,0, 1,0,0;
		plane	0,0,0, -1,0,0;
		cylind	0,0,0, 1,0,0, 5;
	}
}
TWT64F7Ouv8