Extreme Godot Performance Optimization for Mobile [Advanced]

In this video, I break down the exact steps I took to optimize my Godot 4 game, taking it from a mid 30 FPS to almost 90 FPS on a mid-range Android phone. While I'm not a dedicated rendering engineer, I hope this could be useful for some people. All changes are tailored towards a specific game title. This may differ for you and may not be an universal thing to copy. Modify the engine at your own risk. 00:00:00 Intro 00:03:00 Fundamental Godot settings for mobile 00:06:39 First look at Godot frame in RenderDoc 00:17:40 Changes in environment, textures and assets drawcalls 00:19:36 Introduction to PVR Tune Developer profiler - pinpointing real performance issue 00:33:00 Extracting device shader code from RenderDoc 00:38:11 Tip: Using gcc preprocessor to simplify shaders debugging 00:40:58 Getting the performance numbers - PVR Profiling Compiler 00:46:40 scene shader optimizations 01:24:27 Exploring further issues with Snapdragon Profiler - System Trace 01:34:40 Pinpointing expensive part of postprocessing 01:38:30 A bit about how glow works 01:40:00 Optimizing blur shaders 01:47:13 Describing overall changes in Godot source code 01:55:53 Results & Other ideas