Compilation Visualizer for Unity

What's this?

This tool visualizes the assembly compilation process in Unity3D. It hooks into the Editor-provided events and nicely draws them on a timeline. That's especially helpful when trying to optimize compile times and dependencies between assemblies.

Besides showing a graphical view of compilation, selecting an assembly shows both dependencies and dependents of that assembly.

The screenshots show full compilations; but the timeline works as well for partial compilations (e.g. you changed a single script and Unity only recompiles the relevant parts of the dependency chain).

Quick Start

Compilation Visualizer is available on OpenUPM: https://openupm.com/packages/com.needle.compilation-visualizer/

If you're on Unity 2019.4+:

• open Edit/Project Settings/Package Manager
• add a new Scoped Registry:

  Name: OpenUPM
  URL:  https://package.openupm.com/
  Scope(s): com.needle.compilation-visualizer
  

• click Save
• open Package Manager
• click +
• select Add from Git URL
• paste com.needle.compilation-visualizer
• click Add.

You can open the Compilation Visualizer by selecting Window > Analysis > Compilation Timeline.

If you want to trigger a recompile, you can either use the "Recompile" button, or Right Click > Reimport a script or folder with scripts to cause that to be recompiled.

Screenshots

Compatibility to 2018.4, 2019.1, 2019.2

While most functionality works great those versions, some minor things are different:

• slightly less accurate total compilation time on 2018.4 — 2019.1+ has events for the entire compilation while on 2018.4 the last finished assembly compilation is used as end date.
• no PackageInfo for now on 2018.4/2019.1 as PackageInfo.FindForAsset doesn't exist.
  Future Work: there's ways to still find the right package.

Contact

needle — tools for unity • @NeedleTools • @marcel_wiessler • @hybridherbst