How Unity batches moving GameObjects
Combine meshes manually

Enable dynamic batching

Unity always uses dynamic batchingAn automatic Unity process which attempts to render multiple meshes as if they were a single mesh for optimized graphics performance. The technique transforms all of the GameObject vertices on the CPU and groups many similar vertices together. More info
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for dynamic geometry such as Particle Systems

To use dynamic batching for meshes:

  1. Go to Edit > Project Settings > Player.

  2. In Other Settings, enable Dynamic Batching.

  3. In Other Settings, enable Dynamic Batching.

If your project uses the Universal Render PipelineA series of operations that take the contents of a Scene, and displays them on a screen. Unity lets you choose from pre-built render pipelines, or write your own. More info
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(URP), the Scriptable Render Pipeline (SRP) Batcher is enabled by default. To enable dynamic batching instead, go to the URP Asset and enable Dynamic Batching.

Unity automatically batches moving meshes into the same draw call if they fulfill the criteria described in the common usage information.


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How Unity batches moving GameObjects
Combine meshes manually