www.pudn.com > simpleraytracer_v1_0.zip > geometry.h

/*===================================================================== 
geometry.h 
---------- 
File created by ClassTemplate on Wed Apr 14 21:19:37 2004 
Code By Nicholas Chapman. 
 
  nickamy@paradise.net.nz 
 
You may use this code for any non-commercial project, 
as long as you do not remove this description. 
 
You may *not* use this code for any commercial project. 
=====================================================================*/ 
#ifndef __GEOMETRY_H_666_ 
#define __GEOMETRY_H_666_ 
 
 
class Ray; 
class Vec3; 
class World; 
class Colour; 
 
/*===================================================================== 
Geometry 
-------- 
interface that represents the shape of an object 
=====================================================================*/ 
class Geometry 
{ 
public: 
	/*===================================================================== 
	Geometry 
	-------- 
	 
	=====================================================================*/ 
	//Geometry(); 
 
	virtual ~Geometry(){} 
 
 
	//returns negative number if object not hit by the ray 
	virtual float getDistanceUntilHit(const Ray& ray) const = 0; 
 
	virtual const Vec3 getNormalForPos(const Vec3& pos) const = 0; 
}; 
 
 
 
#endif //__GEOMETRY_H_666_