🎥How to Use LODs: A Guide to Landscape Optimization
Unlock the professional technique for crafting expansive, optimized terrains that run smoothly on any device Join MHCP mentor SpaceGlitterUnicorn in this in-depth Build-Along session to dive into a complete, end-to-end production workflow. Discover how to strategically split large landscapes into manageable sections, use powerful modifiers like Remesh and Decimate in Blender to create multiple layers of detail, and master aligning pivot points for a seamless import back into Horizon Worlds.
🎥A Deep Dive into Perfetto for Performance Tuning
Go beyond basic metrics and learn to diagnose performance issues like a professional. In this Performance Pro session, MHCP mentor PigeonNo12 provides an in-depth workshop on using Perfetto for advanced performance tracing. Discover the complete workflow for capturing and analyzing client and server-side traces, learn how to interpret complex data to pinpoint the hidden causes of lag, and see how to turn Perfetto's output into actionable optimizations for your world.
🎥 Performance Pro: Optimization Lab - Slim Down Assets, Speed Up Fun
Analyze your world's textures and assets to find opportunities for improving frame rates and preventing crashes. You'll learn to use Worlds' built-in tools to identify computationally expensive assets and optimize them effectively. Through hands-on exercises, you'll discover practical limits for texture resolutions and model density. We'll also implement tracing workflows that systematically identify and address performance issues in your world.
🎥 On-Demand Video - Workshop: Trace it! World Performance Optimization
Is your world lagging, acting unstable, or just not as smooth of an experience as you want? Learn to use built-in tracing and performance metrics tools to diagnose your world, measure the impact of assets, and make changes to increase stability and frame rate. Find the most costly elements of your world to minimize or eliminate your crash rates. See Performance metrics available in MR and Mobile Conduct a world content trace to determine an assets’ memory cost Demystify the powerful Perfetto trace tool Learn how to exclude world bugs from platform bugs when filing issues
Help! My world is laggy and jittery! Using Real-Time Performance Metrics to understand your world.
So, you've built a great world, and gotten all the meshes and interactions implemented to make it engaging for your players, but when you go in to play test it, the framerate is awful, and actions sometimes stutter when you try to initiate some scripted interaction. You've probably overextended the runtime in some way and are going to have to 'performance optimize' your world. The first step is going to be to get some _concrete_ measurements as to what is wrong, and the best way to do that is to use the in-world performance panel tools. In VR, you can bring this up by first enabling the Utilities menu in Settings, and then selecting "Real-time Metrics' from your wrist menu. On Web (but not desktop or mobile), you can bring up the same metrics under the viewport by pressing P. Once you have the panel up, there are a variety of metrics to configure. The most important is FPS, which you want to maintain above 70 at all times (60 for web). But to do so, you will need to look at a variety of other stats to see what things are straying 'out of bounds' and need to be addressed. What to optimize: Draw calls You have too many discrete meshes and textures in view at one time. Reduce/combine them. GPU Too much work is being done by the GPU to draw the scene due to too complex modules, particles, or high rez textures. Physics Too many collisions to process, including from both active physics objects, anything collidable, and triggers. Scripting The code being executed in typescript is taking too long, perhaps due to inefficient algorithms or too many bridge calls. Custom ui bindings If there are too many binding updates per second, or the bindings are too complex, it can cause UI updates to freeze There are a number of other metrics to look at, which are described in detail in the below docs. Overview of Real Time metrics https://developers.meta.com/horizon-worlds/learn/documentation/performance-best-practices-and-tooling/performance-tools/enabling-and-modifying-the-realtime-metrics-panel Real Time Metrics on web/mobile https://developers.meta.com/horizon-worlds/learn/documentation/performance-best-practices-and-tooling/performance-tools/using-performance-tools-from-web-and-mobile Happy performance tuning!
