[ Ссылка ] - In this excerpt from the World Building course inside the Unreal Engine Pro Masterclass, we start diving into lighting with Unreal Engine 5.
I’ve always said that good lighting can make a bad model look good, but bad lighting can make a good model look bad. When rendering a 3D scene, whether it’s for game or for film, the lighting can make the difference between a good render and a bad render.
Lumen is a system for delivering real time, dynamic global illumination that can offer results that are often on par with offline ray traced renderers. But what is global illumination and how does it actually work? In this video we demystify the real world physics of global illumination into laymen's terms with examples both inside Unreal and in the real world.
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00:00 Lighting Can Make or Break a Render
00:43 What is Lumen?
01:16 What is Global Illumination?
01:36 Real World Example of Global Illumination
02:35 Why is Lumen Such a Big Deal?
03:19 How Does Lumen Work?
03:45 Using Lumen Optimization View Modes
04:06 Lumen Scene
04:57 Reflection View
05:13 Surface Cache
05:31 Demo Examples in Unreal
06:21 Final Thoughts
