Quickstart

Install from Asset Manager

  • Open Unity → Window → Package Manager → My Assets.

  • Find Decal Collider → Download → Import.

  • The package content (Docs, examples, scripts) appears in your Project window.

  • Open an example scene to verify everything is working.

Want to learn about package manager window? Head to the Unity's Package Manager section to learn more.

Load the correct Pipeline version

  • Go to: DecalCollider/Renderers/

  • Open the folder that matches your project (Built-in, URP, or HDRP).

  • Double-click the installer/import file inside → Import.

  • If you switch pipelines later, re-import the matching variant here. Pink (magenta) materials = wrong or missing variant.

First Decal

  • Add the Decal Collider component to any GameObject.

  • In the Inspector, pick a projection direction, set box size, depth / max distance, and choose mesh/collider detail.

  • (Optional) Enable Alpha Mask when your decal texture has transparency so empty pixels are trimmed from the mesh and collider.

  • Use scene handles to move/rotate/scale the projection box until the preview fits.

  • Press Play (or build) — the decal mesh and collider are generated/updated automatically.

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