Hello. I'm trying to find out how to do this: http://novembro.net/es/video/piernas
The link redirects you to a fullscreen video website. What I want to know is how to add what seems to be some kind of filter "ON" the video.Or at least I want to know how it's called so I can google it. I don't know what to type exactly in the search engine and if I type "video filter" thousands of results are displayed.
If you zoom in, there are some kind of gray/black squares on the video. If anyone can tell me / teach me what it is, I'll appreciate it. Thanks!