root/samples/hajimete/sample15.php

DEFINITIONS

1. display
2. reshape
3. idle
4. otherInit

<?php

//------------ 各種材質パラメータ--------------//

//光源(環境光､拡散光､鏡面光､位置)

$lightAmb = array(0.0, 0.0, 0.0, 1.0 );
$lightDiff = array(1.0, 1.0, 1.0, 1.0);
$lightSpec = array(1.0, 1.0, 1.0, 1.0);
$lightPos = array(1.0, 1.0, 1.0, 0.0);//平行光源


//材質(環境光､拡散光､鏡面光､鏡面指数)

$goldAmb = array( 0.24725, 0.1995, 0.0745, 1.0 );
$goldDiff = array( 0.75164, 0.60648 , 0.22648, 1.0 );
$goldSpec = array( 0.628281, 0.555802, 0.366065, 1.0 );
$goldShin =  51.2 ;


//--------- 各種コールバック関数-------//

function display()
{
    global $lightPos;
    global $goldShin, $goldAmb, $goldDiff, $goldSpec;
        static $angle = 0;

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
        glLoadIdentity();
        gluLookAt(0.0, 1.0, 5.0, 0, 0.0, 0.0, 0.0, 1.0, 0.0);
        
        //光源の位置設定

        glLightfv(GL_LIGHT0,GL_POSITION,$lightPos);

        //材質設定と描画

        glEnable(GL_COLOR_MATERIAL);
        glPushMatrix();
        glRotatef($angle, 0.0, 1.0, 0.0);
        //鏡面指数

        glMaterialf(GL_FRONT_AND_BACK,GL_SHININESS,$goldShin);

    glColorMaterial(GL_FRONT_AND_BACK,GL_AMBIENT);//環境光

    glColor4fv($goldAmb);
        
        glColorMaterial(GL_FRONT_AND_BACK,GL_DIFFUSE);//拡散光

    glColor4fv($goldDiff);

        glColorMaterial(GL_FRONT_AND_BACK,GL_SPECULAR);//鏡面光

    glColor4fv($goldSpec);

        glutSolidSphere(1,60, 60);//描画


        glDisable(GL_COLOR_MATERIAL);
        glPopMatrix();

        glutSwapBuffers();
        if (++$angle >= 360) { $angle = 0; }
}

function reshape($w, $h)
{
        glViewport(0,0,$w,$h);
        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        gluPerspective(30.0,$w/$h, 0.1, 200.0);
        glMatrixMode(GL_MODELVIEW);
}

function idle()
{
        glutPostRedisplay();
}

//--------- その他各種設定-----------//

function otherInit()
{
        global $lightAmb;
        global $lightDiff;
        global $lightSpec;


        glClearColor(1.0, 1.0, 1.0, 1.0);
        glClearDepth(1.0);
        glEnable(GL_DEPTH_TEST);

        //光源設定(環境､拡散､鏡面のみ)

        glLightfv(GL_LIGHT0,GL_AMBIENT,$lightAmb);
        glLightfv(GL_LIGHT0,GL_DIFFUSE,$lightDiff);
        glLightfv(GL_LIGHT0,GL_SPECULAR,$lightSpec);

        //光源とライティング有効化

        glEnable(GL_LIGHT0);
        glEnable(GL_LIGHTING);
        glEnable(GL_NORMALIZE);//法線ベクトルの正規化

}

//---------- メイン関数-------------//

glutInit($argv);
glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE);
glutInitWindowSize(640,480);
glutCreateWindow('glColormaterial');

//コールバック関数登録

glutDisplayFunc('display');
glutReshapeFunc('reshape');
glutIdleFunc('idle');

otherInit();//その他設定


glutMainLoop();

exit (0);