public static abstract sealed class Sandbox.Diagnostics.Performance

These quality guidelines will help you through the process of creating clothing that stands a better chance of being accepted for sale on the s&box store.

The "Model Editor", also known as "ModelDoc", is where you can create and edit model (VMDL) files. This is the modern equivalent of Source 1's .QC files. You can find it under the "Tools" menu.

Network Visibility controls whether a networked object should be visible for a specific player (Connection). Visibility determines whether the object receives ongoing network updates — such as Sync Vars and Transform updates — for that client.

S&box includes a full 3D and 2D physics system powered by the Source 2 engine, with great performance and stability. Rigidbodies, colliders, joints, raycasting, and trigger volumes are all usable through Components on GameObjects.

ScreenSpace::Trace provides functionality for tracing rays in screen space to compute effects like Dynamic Reflections or any kind of ray in world space. It leverages hierarchical ray marching for efficient performance.

As you play with developing in s&box, you will notice some things are weird, missing, or suck. We are aware.