Rasagar/Library/PackageCache/com.unity.shadergraph/Documentation~/Instance-ID-Node.md
2024-08-26 23:07:20 +03:00

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# Instance ID Node
## Description
When Unity renders with GPU instancing, it assigns an **Instance ID** to each geometry.
Use this node to capture **Instance ID** values in [`Graphics.DrawMeshInstanced`](https://docs.unity3d.com/ScriptReference/Graphics.DrawMeshInstanced.html) API calls.
When Unity does not render with GPU instancing, this ID is 0.
When Unity uses dynamic instancing, instance IDs might not be consistent across multiple frames.
## Ports
| Name | Direction | Type | Binding | Description |
|:-------|:-----------|:------|:--------|:------------|
| Out | Output | Float | None | **Instance ID** for mesh of a given instanced draw call. |