I have published an official and comprehensive Unity expert guide (PDF) on advanced techniques to create high-quality light fixtures for real-time applications. Read it and find out how you can use light cookies and advanced shaders to create convincing artificial light sources in any project made with Unity, from games or architectural visualizations to films and more!
After pointing out some of the common lighting mistakes still found in CGI nowadays and giving you recommendations on how to prevent them, the expert guide walks you through all the steps required to generate beautiful noise-free cookies with a variety of 2D and 3D programs, such as Photoshop, 3ds Max and Unity itself.
Moreover, I will explain how to set up critical post-processing settings in Unity, such as Exposure and Tone Mapping, so that your interior scenes can be lit in a more physically-correct way, one of HDRP’s mottos.
Finally, I introduce an original workflow to generate appealing caustics to bring the final ultra-realistic touch to your light sources, by adding micro-details to simulate the self-reflections of the light fitting and the structural imperfections found in the reflectors and the lampshades.
Pierre Yves Donzallaz (Writer, Senior Rendering & Lighting Artist)