Advanced Compositing in Assimilate Live FX

In this tutorial, I’ll go over some advanced compositing techniques for Assimilate Live FX, which also apply to Scratch.

Here are some important things to know about compositing in Live FX.

Assimilate is the fastest compositor I’ve ever used. I have used Davinci Resolve and Davinci Fusion Standalone, but they are extremely slow compared to Assimilate. Even with these 12k exr sequences, you can see I am layering 10 different exrs and still able to preview changes very quickly.

It does take some getting used to, and it lacks a lot of advanced tools that you would find in Nuke, Fusion Stand alone or After Effects, but even if I needed to use those tools, I would likely use those other programs only for the things I needed to do in them.

For example, Assimilate cannot use the Cryptomattes, or the Motion Vector pass in any meaningful way. So I might use Fusion or Blender to take the crypto matte and render out mattes of the objects or materials I need mattes for, and then bring those mattes into Assimilate to finish.

00:00 - Intro
00:30 - Create a Project
03:10 - Import Media
05:10 - Set Monitor Color Space
06:16 - Re-Map EXR Channels
07:12 - Single Pass EXRs better than Multi Pass
08:39 - Organize media
10:19 - Start with an Empty
10:55 - Change the Frame Range
11:45 - Create Layers
12:48 - Blend Modes and Opacity
13:45 - Fetching Clips
14:20 - Z Depth Pass
15:19 - Z Depth Pass as a matte
17:59 - Sky Replacement with HDRIs
18:20 - Working with HDRIs
20:58 - Add a Color Frame
22:09 - Organize with Groups
22:43 - Working with Lighting Passes
23:50 - Replace Background with HDRI 2
25:57 - Matte for Greenery
27:53 - Create a Mask
29:16 - Render


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