www.pudn.com > raytracer4.zip > raytracer.h

// ----------------------------------------------------------- 
// raytracer.h 
// 2004 - Jacco Bikker - jacco@bik5.com - www.bik5.com -   <>< 
// ----------------------------------------------------------- 
 
#ifndef I_RAYTRACER_H 
#define I_RAYTRACER_H 
 
#include "common.h" 
 
namespace Raytracer { 
 
// ----------------------------------------------------------- 
// Ray class definition 
// ----------------------------------------------------------- 
class Ray 
{ 
public: 
	Ray() : m_Origin( vector3( 0, 0, 0 ) ), m_Direction( vector3( 0, 0, 0 ) ), m_ID( 0 ) {}; 
	Ray( vector3& a_Origin, vector3& a_Dir, int a_ID ); 
	void SetOrigin( vector3& a_Origin ) { m_Origin = a_Origin; } 
	void SetDirection( vector3& a_Direction ) { m_Direction = a_Direction; } 
	vector3& GetOrigin() { return m_Origin; } 
	vector3& GetDirection() { return m_Direction; } 
	void SetID( int a_ID ) { m_ID = a_ID; } 
	int GetID() { return m_ID; } 
private: 
	vector3 m_Origin; 
	vector3 m_Direction; 
	int m_ID; 
}; 
 
// ----------------------------------------------------------- 
// Engine class definition 
// Raytracer core 
// ----------------------------------------------------------- 
class Scene; 
class Primitive; 
class Engine 
{ 
public: 
	Engine(); 
	~Engine(); 
	void SetTarget( Pixel* a_Dest, int a_Width, int a_Height ); 
	Scene* GetScene() { return m_Scene; } 
	int FindNearest( Ray& a_Ray, float& a_Dist, Primitive*& a_Prim ); 
	Primitive* Raytrace( Ray& a_Ray, Color& a_Acc, int a_Depth, float a_RIndex, float& a_Dist ); 
	void InitRender(); 
	Primitive* RenderRay( vector3 a_ScreenPos, Color& a_Acc ); 
	bool Render(); 
protected: 
	// renderer data 
	float m_WX1, m_WY1, m_WX2, m_WY2, m_DX, m_DY, m_SX, m_SY; 
	Scene* m_Scene; 
	Pixel* m_Dest; 
	int m_Width, m_Height, m_CurrLine, m_PPos; 
	Primitive** m_LastRow; 
	// data for regular grid stepping 
	vector3 m_SR, m_CW; 
	int m_CurID; 
}; 
 
}; // namespace Raytracer 
 
#endif