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glt/material.cpp

Go to the documentation of this file.

#include "material.h"

#include <glt/error.h>

#include <cassert>
#include <cstring>
using namespace std;

GltMaterial::GltMaterial(const GLenum face,const bool getIt)
: _face(face)
{
    assert(_face==GL_FRONT_AND_BACK || _face==GL_FRONT || _face==GL_BACK);

    // TODO - OpenGL Defaults
    
    _shininess = 0.0;
    memset(_colorIndex,0,sizeof(_colorIndex));

    if (getIt)
        get();
}

GltMaterial::GltMaterial
(
    const GltColor &ambient,
    const GltColor &diffuse,
    const GltColor &specular,
    const GltColor &emission,
    const GLfloat   shininess,
    const GLenum face
)
: 
    _face(face),
    _ambient(ambient),
    _diffuse(diffuse),
    _specular(specular),
    _emission(emission),
    _shininess(shininess)
{
    assert(_face==GL_FRONT_AND_BACK || _face==GL_FRONT || _face==GL_BACK);

    memset(_colorIndex,0,sizeof(_colorIndex));
}

GltMaterial::GltMaterial(const std::string &name,const GLenum face)
: _face(face)
{
    assert(_face==GL_FRONT_AND_BACK || _face==GL_FRONT || _face==GL_BACK);

    // Do a binary search through the list of names

    int i=0;
    int j=_matSize;

    for (;;)
    {
        int k = ((j-i)>>1)+i;
        const int res = strcmp(name.c_str(),_matName[k]);

        if (res<0)
            j = k;
        else
            if (res>0)
                i = k+1;
            else
            {
                operator=(*_matValue[k]);
                return;
            }

        if (i==k && j==k || i==_matSize)
        {
            assert(!"Material not found");
            operator=(GltMaterial());
            return;
        }
    }
}

GltMaterial::~GltMaterial()
{
}

void 
GltMaterial::get()
{
    // Can't query front and back at same time - beware
    const GLenum face = (_face==GL_FRONT_AND_BACK ? GL_FRONT : _face);

    GLERROR

    _ambient. glGetMaterial(face,GL_AMBIENT);
    _diffuse. glGetMaterial(face,GL_DIFFUSE);
    _specular.glGetMaterial(face,GL_SPECULAR);
    _emission.glGetMaterial(face,GL_EMISSION);

    glGetMaterialfv(face, GL_SHININESS, &_shininess);

    GLERROR
}

void 
GltMaterial::set() const
{
    GLERROR

    _ambient. glMaterial(_face,GL_AMBIENT);
    _diffuse. glMaterial(_face,GL_DIFFUSE);
    _specular.glMaterial(_face,GL_SPECULAR);
    _emission.glMaterial(_face,GL_EMISSION);

    glMaterialfv(_face, GL_SHININESS, &_shininess);

    GLERROR
}

GLenum   &GltMaterial::face()       { return _face;       }
GltColor &GltMaterial::ambient()    { return _ambient;    }
GltColor &GltMaterial::diffuse()    { return _diffuse;    }
GltColor &GltMaterial::specular()   { return _specular;   }
GltColor &GltMaterial::emission()   { return _emission;   }
GLfloat  &GltMaterial::shininess()  { return _shininess;  }
GLint    *GltMaterial::colorIndex() { return _colorIndex; }

const GLenum   &GltMaterial::face()       const { return _face;       }
const GltColor &GltMaterial::ambient()    const { return _ambient;    }
const GltColor &GltMaterial::diffuse()    const { return _diffuse;    }
const GltColor &GltMaterial::specular()   const { return _specular;   }
const GltColor &GltMaterial::emission()   const { return _emission;   }
const GLfloat  &GltMaterial::shininess()  const { return _shininess;  }
const GLint    *GltMaterial::colorIndex() const { return _colorIndex; }

//
// Adapted from 
//  http://www.cs.utk.edu/~kuck/materials_ogl.htm
//  http://devernay.free.fr/cours/opengl/materials.html
//  http://www.sgi.com/software/opengl/advanced98/notes/node119.html
//  


const GltMaterial blackPlasticMaterial
(
    GltColor(0.00, 0.00, 0.00), // Ambient
    GltColor(0.01, 0.01, 0.01), // Diffuse
    GltColor(0.50, 0.50, 0.50), // Specular
    GltColor(0.00, 0.00, 0.00), // Emission
    32.0f                       // Shininess
);


const GltMaterial blackRubberMaterial
(
    GltColor(0.02, 0.02, 0.02), // Ambient
    GltColor(0.01, 0.01, 0.01), // Diffuse
    GltColor(0.40, 0.40, 0.40), // Specular
    GltColor(0.00, 0.00, 0.00), // Emission
    10.0f                       // Shininess
);


const GltMaterial brassMaterial
(
    GltColor(0.329412, 0.223529, 0.027451), // Ambient
    GltColor(0.780392, 0.568627, 0.113725), // Diffuse
    GltColor(0.992157, 0.941176, 0.807843), // Specular
    GltColor(0.0,0.0,0.0),                  // Emission
    27.8974f                                // Shininess
);


const GltMaterial bronzeMaterial
(
    GltColor(0.2125  , 0.1275  , 0.054   ), // Ambient
    GltColor(0.714   , 0.4284  , 0.18144 ), // Diffuse
    GltColor(0.393548, 0.271906, 0.166721), // Specular
    GltColor(0.0,0.0,0.0),                  // Emission
    25.6f                                   // Shininess
);


const GltMaterial chromeMaterial
(
    GltColor(0.25,     0.25,     0.25    ), // Ambient
    GltColor(0.4,      0.4,      0.4     ), // Diffuse
    GltColor(0.774597, 0.774597, 0.774597), // Specular
    GltColor(0.0,0.0,0.0),                  // Emission
    76.8f                                   // Shininess
);


const GltMaterial copperMaterial
(
    GltColor(0.19125,  0.0735,   0.0225  ), // Ambient
    GltColor(0.7038,   0.27048,  0.0828  ), // Diffuse
    GltColor(0.256777, 0.137622, 0.086014), // Specular
    GltColor(0.00,0.00,0.00),               // Emission
    12.8f                                   // Shininess
);


const GltMaterial emeraldMaterial
(
    GltColor(0.0215,  0.1745,   0.0215 ),   // Ambient
    GltColor(0.07568, 0.61424,  0.07568),   // Diffuse
    GltColor(0.633,   0.727811, 0.633  ),   // Specular
    GltColor(0.00,0.00,0.00),               // Emission
    76.8f                                   // Shininess
);


const GltMaterial goldMaterial
(
    GltColor(0.24725,  0.1995,   0.0745),   // Ambient
    GltColor(0.75164,  0.60648,  0.22648),  // Diffuse
    GltColor(0.628281, 0.555802, 0.366065), // Specular
    GltColor(0.00,0.00,0.00),               // Emission
    51.2f                                   // Shininess
);


const GltMaterial jadeMaterial
(
    GltColor(0.135,    0.2225,   0.1575  ), // Ambient
    GltColor(0.135,    0.2225,   0.1575  ), // Diffuse
    GltColor(0.316228, 0.316228, 0.316228), // Specular
    GltColor(0.00,0.00,0.00),               // Emission
    12.8f                                   // Shininess
);


const GltMaterial obsidianMaterial
(
    GltColor(0.05375,  0.05,     0.06625 ), // Ambient
    GltColor(0.18275,  0.17,     0.22525 ), // Diffuse
    GltColor(0.332741, 0.328634, 0.346435), // Specular
    GltColor(0.00,0.00,0.00),               // Emission
    38.4f                                   // Shininess
);


const GltMaterial pearlMaterial
(
    GltColor(0.25,     0.20725,  0.20725 ), // Ambient
    GltColor(1.0,      0.829,    0.829   ), // Diffuse
    GltColor(0.296648, 0.296648, 0.296648), // Specular
    GltColor(0.00,0.00,0.00),               // Emission
    11.264f                                 // Shininess
);


const GltMaterial pewterMaterial
(
    GltColor(0.105882, 0.058824, 0.113725), // Ambient
    GltColor(0.427451, 0.470588, 0.541176), // Diffuse
    GltColor(0.333333, 0.333333, 0.521569), // Specular
    GltColor(0.00,0.00,0.00),               // Emission
    9.84615f                                // Shininess
);


const GltMaterial polishedBronzeMaterial
(
    GltColor(0.25    , 0.148   , 0.06475 ), // Ambient
    GltColor(0.4     , 0.2368  , 0.1036  ), // Diffuse
    GltColor(0.774597, 0.458561, 0.200621), // Specular
    GltColor(0.0,0.0,0.0),                  // Emission
    76.8f                                   // Shininess
);


const GltMaterial polishedCopperMaterial
(
    GltColor(0.2295,   0.08825,  0.0275   ),    // Ambient
    GltColor(0.5508,   0.2118,   0.066    ),    // Diffuse
    GltColor(0.580594, 0.223257, 0.0695701),    // Specular
    GltColor(0.0,0.0,0.0),                      // Emission
    51.2f                                       // Shininess
);


const GltMaterial polishedGoldMaterial
(
    GltColor(0.24725,  0.2245,   0.0645  ), // Ambient
    GltColor(0.34615,  0.3143,   0.0903  ), // Diffuse
    GltColor(0.797357, 0.723991, 0.208006), // Specular
    GltColor(0.0,0.0,0.0),                  // Emission
    83.2f                                   // Shininess
);


const GltMaterial polishedSilverMaterial
(
    GltColor(0.23125, 0.23125, 0.23125),    // Ambient
    GltColor(0.2775,  0.2775,  0.2775),     // Diffuse
    GltColor(0.773911, 0.773911, 0.773911), // Specular
    GltColor(0.0,0.0,0.0),                  // Emission
    89.6f                                   // Shininess
);


const GltMaterial rubyMaterial
(
    GltColor(0.1745,   0.01175,  0.01175),  // Ambient
    GltColor(0.61424,  0.04136,  0.04136),  // Diffuse
    GltColor(0.727811, 0.626959, 0.626959), // Specular
    GltColor(0.00,0.00,0.00),               // Emission
    76.8f                                   // Shininess
);


const GltMaterial silverMaterial
(
    GltColor(0.19225,  0.19225,  0.19225 ), // Ambient
    GltColor(0.50754,  0.50754,  0.50754 ), // Diffuse
    GltColor(0.508273, 0.508273, 0.508273), // Specular
    GltColor(0.00,0.00,0.00),               // Emission
    51.2f                                   // Shininess
);


const GltMaterial turquoiseMaterial
(
    GltColor(0.1,      0.18725, 0.1745  ),  // Ambient
    GltColor(0.396,    0.74151, 0.69102 ),  // Diffuse
    GltColor(0.297254, 0.30829, 0.306678),  // Specular
    GltColor(0.00,0.00,0.00),               // Emission
    12.8f                                   // Shininess
);


const GltMaterial whitePlasticMaterial
(
    GltColor(0.00, 0.00, 0.00), // Ambient
    GltColor(0.55, 0.55, 0.55), // Diffuse
    GltColor(0.70, 0.70, 0.70), // Specular
    GltColor(0.00, 0.00, 0.00), // Emission
    32.0f                       // Shininess
);

//

const int   GltMaterial::_matSize = 20;

const char *GltMaterial::_matName[20] =
{
    "blackPlastic",
    "blackRubber",
    "brass",
    "bronze",
    "chrome",
    "copper",
    "emerald",
    "gold",
    "jade",
    "obsidian",
    "pearl",
    "pewter",
    "polishedBronze",
    "polishedCopper",
    "polishedGold",
    "polishedSilver",
    "ruby",
    "silver",
    "turquoise",
    "whitePlastic"
};

const GltMaterial *GltMaterial::_matValue[20] =
{
    &::blackPlasticMaterial,
    &::blackRubberMaterial,
    &::brassMaterial,
    &::bronzeMaterial,
    &::chromeMaterial,
    &::copperMaterial,
    &::emeraldMaterial,
    &::goldMaterial,
    &::jadeMaterial,
    &::obsidianMaterial,
    &::pearlMaterial,
    &::pewterMaterial,
    &::polishedBronzeMaterial,
    &::polishedCopperMaterial,
    &::polishedGoldMaterial,
    &::polishedSilverMaterial,
    &::rubyMaterial,
    &::silverMaterial,
    &::turquoiseMaterial,
    &::whitePlasticMaterial
};

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