🔴 After Effects CC Overlay TRANSPARENT Render Tutorial (Small File Sizes!) [

Описание: So you wanna render Transparent Overlay videos in After Effects? Transparent (RGB+Alpha) Renders are too big (several GIGABYTES or more!!) - In today's daily tutorial, let's fix that with some good ol' fashioned compression without destroying the alpha channel, eh?

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Why are RGB+Alpha AVI Renders in After Effects CC 2014+ so large in file size? This is a question I hear people asking me ALL THE TIME. There's a simple explanation though: When you render with RGB and add a transparent Alpha channel to the mix, that adds a whole other bit of information per pixel. Instead of RGB (3 bits of information), it then becomes RGBA (4 bits of information) with a 0-255 range of values. Adding one more value may not seem like a reason for files to jump from mere megabytes to sheer GIGABYTES in size, however, when you consider adding 255 new permutations of value combinations per pixel for over 1 million pixels per frame - things start to make sense a bit more.

So how do we fix that? Compression! Like any other video in life, these formats are compressible- just not in the most conventional way. Instead of compressing these transparent AVIs into a MP4 container or similar, we need to compress in a manner that is reversible. Otherwise the alpha channel will be destroyed upon compression. This can be achieved by using standard file compression methods such as .ZIP, .RAR, or .7z. These compression algorithms are reversible and the original RGB+Alpha videos can be extracted back to normal after compression and transferring to clients/etc.

Can you render transparent video without AVI? or- Can you render transparent video using another format? Well, the other method is using a .MOV instead of a .AVI. The key difference between the two is that .MOVs are compressible in format, while .AVI can only be lossless while rendering with a transparent alpha channel. This method requires you to have Quicktime installed from Apple's website. You can just google, "QuickTime download Apple" to find that.

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Programs Used:
Adobe After Effects CC 2014.2 (Compositing)
Adobe Premiere Pro CC 2014 (Editing)
Audacity (Audio/Music Editing)

External Assets Used:
Subtact - Tunnel Vision (TGODdesigns Intro Song)
Positronic Emotions 2 - Gavin Luke (Tutorial Background Music)
The Tonight Show - Martin Baekkevold (TGODdesigns Outro Song)

Why Transparent Renders (AVI) are HUGE & My Compression Trick