root/samples/hajimete/sample13.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 $goldAmb;
        global $goldDiff;
        global $goldSpec;
        global $goldShin;
        static $angle = 0;

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
        glLoadIdentity();
        gluLookAt(0.0, 3.0, 5,0, 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

        glPushMatrix();
        glRotatef($angle, 0.0, 1.0, 0.0);
        glMaterialfv(GL_FRONT_AND_BACK,GL_AMBIENT,$goldAmb);
        glMaterialfv(GL_FRONT_AND_BACK,GL_DIFFUSE,$goldDiff);
        glMaterialfv(GL_FRONT_AND_BACK,GL_SPECULAR,$goldSpec);
        glMaterialf(GL_FRONT_AND_BACK,GL_SHININESS,$goldShin);
        glutSolidTeapot(1.0);//描画

        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);
}

//---------- メイン関数-------------//

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

//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);