php - Background is turning out black -


i have done possibly try fix this. i've spent on hour researching , trying code, nothing has helped.

this code following.

  • take 2 completely-white images , re-color them (while keeping transparency)
  • merge 2 images together
  • outputs images (but with black background!!)

can identify , patch part that's causing black background? see following url example of script.

  • http://labs.bluefiremedia.net/metro-machine/gd/download-png.php?size=128&padding=29&icon=icons/application/add-new.png&bgshape=circlebg.png&bgcolorr=255&bgcolorg=0&bgcolorb=0&iconcolorr=255&iconcolorg=255&iconcolorb=255

    $final_image = imagecreatetruecolor($dimensions, $dimensions); imagesavealpha($final_image, true);  if($bgshape != '') { list($originalwidth, $originalheight) = getimagesize('../images/' . $bgshape);  $background = imagecreatefrompng('../images/' . $bgshape);  imagefilter($background, img_filter_brightness, -255); imagefilter($background, img_filter_colorize, $bgcolorr, $bgcolorg, $bgcolorb);  $backgroundimage = imagecreatetruecolor( $dimensions, $dimensions ); imagealphablending($backgroundimage , false); imagesavealpha($backgroundimage , true);  imagecopyresampled($backgroundimage,     $background,     0, 0,     0, 0,     $dimensions, $dimensions,     $originalwidth, $originalheight );  imagecopy($final_image, $backgroundimage, 0, 0, 0, 0, $dimensions, $dimensions);  ///  $icon = imagecreatefrompng("../" . $icon);  imagefilter($icon, img_filter_brightness, -255); imagefilter($icon, img_filter_colorize, $iconcolorr, $iconcolorg, $iconcolorb);  $iconimage = imagecreatetruecolor( $dimensions, $dimensions ); imagealphablending($iconimage , false); imagesavealpha($iconimage , true);  imagecopyresampled($iconimage,     $icon,     0, 0,     0, 0,     $dimensions, $dimensions,     $originalwidth, $originalheight );  imagecopy($final_image, $iconimage, 0, 0, 0, 0, $dimensions, $dimensions);  ///  imagealphablending($final_image, true); imagesavealpha($final_image, true);  imagepng($final_image, null, 0, png_no_filter);  header("content-type: image/png"); imagedestroy($backgroundimage);

set imagealphablending false, fill image transparent color, set imagealphablending true, copying stuff.

$final_image = imagecreatetruecolor($dimensions, $dimensions); imagealphablending($final_image, false); $transparency = imagecolorallocatealpha($final_image,  0, 0, 0, 127); imagefilledrectangle($final_image, 0, 0, $dimensions, $dimensions, $transparency); imagesavealpha($final_image, true); imagealphablending($final_image, true);  // rest of code

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