Source for file map.php

<?php
 
set_time_limit(0);
require_once('Image/3D.php');
 
$world = new Image_3D();
$world->setColor(new Image_3D_Color(255, 255, 255));
 
$light1 = $world->createLight('Light', array(-20, -20, -20));
$light1->setColor(new Image_3D_Color(255, 255, 255));
 
$light2 = $world->createLight('Light', array(20, 20, -20));
$light2->setColor(new Image_3D_Color(0, 200, 0));
 
$map = $world->createObject('map');
 
$detail = 30;
$size = 150;
$height = 40;
 
$raster = 1 / $detail;
for ($x = -1; $x <= 1; $x += $raster) {
    $row = array();
    for ($y = -1; $y <= 1; $y += $raster) {
        $row[] = new Image_3D_Point($x * $size, $y * $size, sin($x * pi()) * sin($y * 2 * pi()) * $height);
    }
    $map->addRow($row);
}
 
$map->setColor(new Image_3D_Color(150, 150, 150, 0));
$map->transform($world->createMatrix('Rotation', array(-40, 20, -10)));
 
$world->setOption(Image_3D::IMAGE_3D_OPTION_BF_CULLING, false);
$world->setOption(Image_3D::IMAGE_3D_OPTION_FILLED, true);
 
$world->createRenderer('perspectively');
$world->createDriver('GD');
$world->render(400, 400, 'Image_3D_Object_Map.png');
 
echo $world->stats();