It ' s the same level of logic as ' your bathroom at home is gender neutral ! ' Yes but I don ' t let strangers come at use it . <| sep |> Yeah , I hear you , but I just can ' t stand the fake primary colours . Cranking the HDR is one thing , but adding all those fake bright red , green , yellow , etc . colours portrays a completely false image . <| sep |> He gets a projector and basically just traces what is displayed on his canvas . <| sep |> There are different compression techniques . Some of them require a lot of processing power , but give a particularly high quality result . Most of these techniques involve making some key frames , and the between frames simply store differences . This is very powerful but takes a lot of processing power , especially because parts of the image move . Even better techniques can use multiple passes to identify which parts of the video can be compressed more . A bluray movie is designed to be extremely high quality . They also can use a fairly powerful computer and spend a lot of time compressing it . A digital download is designed to be decent quality . Once again the uploaders can spend time compressing it . They have a computer with a decent level of power so they can get a decent quality movie . Your phone needs to compress in real time . It doesn ' t have a lot of processing power . A common technique is to compress each frame individually and not store differences at all . This means the video size is quite large , and each needs to be compressed quite heavily because storage space is a significant factor on a phone . If it a video format , it will still only be able to use some of the less processor intensive techniques . It also doesn ' t have the benefit of being able to run multiple passes . The result is that phones tend to create larger files with lower quality .