This article is addressed to orphans of Picasa Web Album and its practical function to put an album slideshow in a web page, not to mention the useful filter for Drupal and CKEditor that with a special tag allowed you to embed a specified album without using HTML. Google Photo has replaced this service and does not allow it anymore, but with several steps you can create an animation that can be easily embedded. Let's see how.
TinyMCE is a fantastic WYSIWYG editor available also for Drupal 7.x, but it does not support the iframe tag, or in a simple word if you try to embed a video, map, or an external web page you can see HTML code magically disappear. Fortunately the WYSIWYG IFrames module solves completely the problem and with a fix it is possible to maintain the allowfullscreen feature of the YouTube videos. Here is a few instructions and a screencast that simplify the whole process.
When I want to insert a 3D image in my articles, I make many attempts to find the best compromise between view and disposition of the scene, sometimes without getting discrete results and hiding particulars. Well, I should insert the real 3D object and give to the user the possibility to control it, shouldn't I?