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/******************************************************************/
/* This file is part of the homework assignments for CSCI-427/527 */
/* at The College of William & Mary and authored by Pieter Peers. */
/* No part of this file, whether altered or in original form, can */
/* be distributed or used outside the context of CSCI-427/527 */
/* without consent of either the College of William & Mary or */
/* Pieter Peers. */
/******************************************************************/
#ifndef _SHADER_BASE_H_
#define _SHADER_BASE_H_
#include <memory>
#include <ostream>
#include "vec2d.h"
#include "vec3d.h"
#include "color.h"
#include "brdfSample.h"
#include "shaderProperties.h"
#include "intersectionPoint.h"
class shader_base
{
public:
//////////////////
// Constructors //
//////////////////
shader_base(void) {}
shader_base(const shader_base&) = delete;
///////////////
// Operators //
///////////////
shader_base& operator=(const shader_base&) = delete;
/////////////
// Methods //
/////////////
virtual color shade(const intersectionPoint& ip, const vec3d& light_dir) const = 0;
virtual color reflectance(const intersectionPoint& ip, const vec3d& light_dir) const = 0;
virtual brdfSample sample(const intersectionPoint& ip, float r1, float r2) const = 0;
virtual float reflectivity(const intersectionPoint& ip) const = 0;
virtual color emittance(const intersectionPoint& ip) const = 0;
virtual shaderProperties properties(const intersectionPoint& ip) const = 0;
/////////////
// Friends //
/////////////
friend std::ostream& operator<<(std::ostream& s, const shader_base& shader)
{
shader._print(s);
return s;
}
protected:
///////////////////////
// Protected Methods //
///////////////////////
virtual void _print(std::ostream& s) const = 0;
};
#endif /* _SHADER_BASE_H_ */
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