/**
* Render the image
*
* Render the image into the metioned file
*
* @param string $file Filename
*
* @return void
*/
public function render($file)
{
// Render image...
$canvas = $this->_raytrace();
// Write canvas to file
$this->_image = imagecreatetruecolor($this->_size[0] * 2, $this->_size[1] * 2);
$bg = $this->_getColor($this->_background);
imagefill($this->_image, 1, 1, $bg);
$x = 0;
foreach ($canvas as $row) {
$y = 0;
foreach ($row as $pixel) {
if (count($pixel)) {
$color = new Image_3D_Color();
$color->merge($pixel);
imagesetpixel($this->_image, $x, $y, $this->_getColor($color));
}
++$y;
}
++$x;
}
imagepng($this->_image, $file);
}
