raytracer.h

Ray tracing on PS3, using the acceleration of PPU, No SPE acceleration is used. The code must be com

/* Copyright (c) 2007 Massachusetts Institute of Technology
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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/**
 * raytracer.h - blue-steel RayTracer class
 * @author Brian Sweatt
 *
 * Contains routines for tracing a packet of rays through a scene represented by a set of objects
 * This includes the tracing of secondary rays for shadows, reflection, and refraction
 *
 * This class is only instantiable on the SPU
 */

#ifndef _RAYTRACER_H_
#define _RAYTRACER_H_

#include <stdio.h>
#include "objectset.h"
#include "raypacket.h"
#include "hitpacket.h"
#include "rgbpacket.h"

class RayTracer {
 public:
  RayTracer(ObjectSet *objects, int bounces, bool shadows, int numLights, vector float amb);
  ~RayTracer() {}

  RGBPacket tracePacket(const RayPacket r, HitPacket &hit, float tmin, int bounces, vector float refIndex) const;
  int getBounces() const;
  void setAmbient(vector float amb) {ambient_light = amb;}
 private:
  vector unsigned int transmit_vec3_v(vector float &dx, vector float &dy, vector float &dz,
				      const vector float nx, const vector float ny, const vector float nz,
				      const vector float ix, const vector float iy, const vector float iz, 
				      vector float index_i, vector float index_t) const;
  ObjectSet *objects;
  vector float ambient_light;
  int bounces;
  int num_lights;
  bool shadows;

  
};

#endif