Скачать или смотреть How games lie using color

Blend modes. Games use blend modes in different ways to create certain effects like lighting and shadows, like using additive blending to create lightmaps and multiply blending to apply them. Which is usually a part of a process called "light baking".

Blend modes are also a little different from shaders since it's the simple equation used for drawing new colors onto the screen. (Or the screen buffer, if you're a nerd)

Something that wasn't mentioned in the video, the blending "operation" can be changed from addition to subtraction or "min", or "max".

Here's a video that explains "min" and "max" blending quite well:
   • Mastering Blending Modes - 04 - Min & Max ...  

Also, blend modes are often used in programs like Photoshop, where the calculation seems to be just a lil different; from what I understand multiply both destination and source color by their alpha along with the defined factor, this likely due to having custom layer transparencies!

And here's a neat page that explains different blend modes:
https://www.clipstudio.net/how-to-dra...

But yeah, thanks for reading!

00:00 Intro
00:08 Blend mode basics
00:42 Normal blend mode
01:52 Additive blend mode
02:42 Baked lighting and lightmaps
03:50 Multiply blend mode
04:22 Shaders vs blend modes
04:45 The blend