Blender tutorial No. 16: How to create light layers in Blenders compositor

By Christoph Werner

One way to increase the visual fidelity of your computer graphics is through light layers, also known as rendered images. These represent each individual light source in a 3D scene and can be used for many different things like rendering all lights on one object or even creating an entire world lighting scheme from start-to-finish!

The final rendered results will be used in Blenders compositor to control their light intensity and color. All your lighting adjustments are updated live, so you can see the changes being made right before your eyes! And because every image is already high quality, there’s no need for rerenders when changing values or animations– this saves time on renders that would otherwise have been wasted with lower-quality assets.

Hi, I’m Jacob W Kirkegaard and in this video you will learn how to create beautiful composites with Blender. This technique is great for beginners as well because it’s very simple once you know what your doing but also has some really advanced features that professionals use so if those don’t matter then feel free skip my full tutorial at https://youtu.be/33DJUiekcGg . It might be easier though since its about twice as long!
The composite process starts off by importing layers (lots) into blender terrain generator 3D scene which helps dictate where lighting should go; sunlight on one side gets redirected onto another object creating depth through shadows etc.

The preparation part (What we need, before we start)
0:00 – Intro
1:18 – The setup
2:26 – Object positioning
2:38 – The image output
3:44 – Preparing the light brightness
4:50 – Pass organisation

The compositing part
5:38 – Let’s go
10:15 – Explaining the preview node
12:35 – Explaining the mix node
14:12 – The right blend mode
15:41 – Hot to brighten the image
16:58 – Adding the first light layer
20:13 – Colorise the light sources
24:42 – First node clean up
25:47 – Node grouping
27:37 – Setting basic input sockets
31:04 – Setting exposure input sockets
34:52 – Dynamic denoised layers
40:33 – Muting nodes for faster editing
41:51 – Completing the layer setup (time lapse)
42:35 – Explaining the final setup

Exporting the results
48:34 – How to save the compositing results
50:04 – Quick insight into the file output node
53:16 – How to avoid overwriting files

https://youtu.be/Kvh3b89GPmQ