def material_copper(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Copper material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.19125, 0.0735, 0.0225, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.7038, 0.27048, 0.0828, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.256777, 0.137622, 0.086014, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.1 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_emerald(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Emerald material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.0215, 0.1745, 0.0215, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.07568, 0.61424, 0.007568, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.633, 0.727811, 0.633, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.6 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_natural_white(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Natural white material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [1, 1, 1, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [1, 1, 1, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [1, 1, 1, 1])
    _glMaterialfv(face, _GL_SHININESS, 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_silver(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Silver material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.19225, 0.19225, 0.19225, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.50754, 0.50754, 0.50754, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.508273, 0.508273, 0.508273, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.4 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_obsidian(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Obsidian material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_SPECULAR, [0.332741, 0.328634, 0.346435, 1.0])
    _glMaterialfv(face, _GL_AMBIENT, [0.05375, 0.05, 0.0625, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.18275, 0.17, 0.25525, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.3 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_yellow_rubber(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Yellow rubber material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.05, 0.05, 0.0, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.5, 0.5, 0.4, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.7, 0.7, 0.04, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.078125 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_gold(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Gold material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.24725, 0.1995, 0.0745, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.75164, 0.60648, 0.22648, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.628281, 0.555802, 0.366065, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.4 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_white_plastic(emission=None, face=_GL_FRONT_AND_BACK):
    """
    White plastic material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.0, 0.0, 0.0, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.55, 0.55, 0.55, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.70, 0.70, 0.70, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.25 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_bronze(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Bronze material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.2125, 0.1275, 0.054, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.714, 0.4284, 0.18144, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.393548, 0.271906, 0.166721, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.2 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_chrome(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Chrome material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.25, 0.25, 0.25, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.4, 0.4, 0.4, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.774597, 0.774957, 0.774957, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.6 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_brass(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Brass material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.329, 0.223529, 0.027451, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.780392, 0.568627, 0.113725, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.992157, 0.941176, 0.807843, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.21794872 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_ruby(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Ruby material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.1745, 0.01175, 0.01175, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.61424, 0.04136, 0.04136, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.727811, 0.626959, 0.626959, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.6 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_turquoise(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Torquoise material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.1, 0.18725, 0.1745, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.396, 0.74161, 0.69102, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.29754, 0.30829, 0.306678, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.1 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_pearl(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Pearl material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.25, 0.20725, 0.20725, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [1.0, 0.829, 0.829, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.296648, 0.296648, 0.296648, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.088 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)
def material_jade(emission=None, face=_GL_FRONT_AND_BACK):
    """
    Jade material.

    :param emission: Material emission constant
    :param face: Face mode (OpenGL constant)
    :type emission: list
    :type face: int
    """
    if emission is None:
        emission = _MATERIAL_DEFAULT_EMISSION
    _glMaterialfv(face, _GL_AMBIENT, [0.135, 0.2225, 0.1575, 1.0])
    _glMaterialfv(face, _GL_DIFFUSE, [0.54, 0.89, 0.63, 1.0])
    _glMaterialfv(face, _GL_SPECULAR, [0.316228, 0.316228, 0.316228, 1.0])
    _glMaterialfv(face, _GL_SHININESS, 0.1 * 128)
    _glMaterialfv(face, _GL_EMISSION, emission)