Source code

/*
 * OpenGLLight.h 
 * Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. 
 */


#pragma once

#include <viz++/opengl/OpenGLObject.h>

namespace VIZ {


class OpenGLLight :public OpenGLObject {
private:
  GLenum light;
  
public:
  OpenGLLight(GLenum light=GL_LIGHT0)
  :light(light)
  {
    //The light parameter will take GL_LIGHT0 to GL_LIGHT7
    glEnable(GL_LIGHTING);
    glEnable(light);    
  }
 
  void enable()
  {
    glEnable(light);    
  }

  void ambient(const GLfloat* values)
  {                                         
    assert(values);
    glLightfv(light, GL_AMBIENT, values);
  }

  void ambient(GLfloat r, GLfloat g, GLfloat b, GLfloat a)
  {                                         
    GLfloat values[] = {r, g, b, a};
    glLightfv(light, GL_AMBIENT, values);
  }

  void specular(const GLfloat* values)
  { 
    assert(values);
    glLightfv(this -> light,GL_SPECULAR, values);
  }

  void specular(GLfloat r, GLfloat g, GLfloat b, GLfloat a)
  { 
    GLfloat values[] = {r, g, b, a};
    glLightfv(this -> light,GL_SPECULAR, values);
  }

  void diffuse(const GLfloat* values)
  {
    assert(values);
    glLightfv(this -> light, GL_DIFFUSE, values);
  }

  void diffuse(GLfloat r, GLfloat g, GLfloat b, GLfloat a)
  {
    GLfloat values[] = {r, g, b, a};
    glLightfv(this -> light, GL_DIFFUSE, values);
  }
  
  void position(const GLfloat* values)
  {
    glLightfv(this -> light,GL_POSITION, values);
  }

  void position(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
  {
    GLfloat values[] = {x, y, z, w};
    glLightfv(this -> light,GL_POSITION, values);
  }

  void spotDirection(const GLfloat* values)
  {
    assert(values);
    glLightfv(this -> light , GL_SPOT_DIRECTION , values); 
  }
  
  void spotDirection(GLfloat x, GLfloat y, GLfloat z)
  {
    GLfloat values[] = {x, y, z};
    glLightfv(this -> light , GL_SPOT_DIRECTION , values); 
  }
  
  void spotExponent(const GLfloat* values)
  {
    assert(values);
    glLightfv(this -> light , GL_SPOT_EXPONENT , values); 
  }
  
  void spotExponent(GLfloat v)
  {
    GLfloat values[] = {v};
    glLightfv(this -> light , GL_SPOT_EXPONENT , values); 
  }
  
  void spotCutoff(const GLfloat* value)
  {
    assert(value);
    glLightfv(this -> light , GL_SPOT_CUTOFF, value); 
  }
  
  void spotCutoff(GLfloat v)
  {
    GLfloat value[] = {v};
    glLightfv(this -> light , GL_SPOT_CUTOFF, value); 
  }

  void constantAttenuation(const GLfloat* value)
  {
    assert(value);
    glLightfv(this -> light , GL_CONSTANT_ATTENUATION, value); 
  }

  void constantAttenuation(GLfloat v)
  {
    GLfloat value[] = {v};
    glLightfv(this -> light , GL_CONSTANT_ATTENUATION, value); 
  }

  void linearAttenuation(const GLfloat* value)
  {
    assert(value);
    glLightfv(this -> light , GL_LINEAR_ATTENUATION, value); 
  }

  void linearAttenuation(GLfloat v)
  {
    GLfloat value[] = {v};
    glLightfv(this -> light , GL_LINEAR_ATTENUATION, value); 
  }

  void quadraticAttenuation(const GLfloat* value)
  {
    assert(value);
    glLightfv(this -> light , GL_QUADRATIC_ATTENUATION, value); 
  }

  void quadraticAttenuation(GLfloat v)
  {
    GLfloat value[] = {v};
    glLightfv(this -> light , GL_QUADRATIC_ATTENUATION, value); 
  }
};
}