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DECAL COLLIDER – Ultimate Runtime Mesh & Collision Decals

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Publisher

Occlusionn

Please Note

This entry is from Thursday April 16, 2026. The price of the asset may have changed since then.
Please visit our homepage for recent offers and sales. Official and private Unity Asset Store™ sales usually last about 14 days.

Overview


Decal Collider is a production-focused Unity tool for creating projected decals that include both a visual mesh and a matching physics collider, with strong support for runtime updates, Sprite/TMP workflows, and Built-in/URP/HDRP pipelines.


As projects grow, decal workflows can become fragile: projection gaps, invalid collider meshes, runtime sync issues on animated content, and heavy rebuild costs.


Decal Collider gives you a single, clean pipeline to keep decal visuals and physics consistent.


✨ Better visual-to-physics consistency

✨ Safer runtime behavior for complex meshes

✨ Faster iteration (project -> tweak -> rebuild -> test)


🛠️ How It Works

  • Scans source data (Mesh, SpriteRenderer, or TextMeshPro)
  • Projects decal geometry onto target surfaces (18+ directions)
  • Builds procedural decal mesh + matching collider
  • Applies optional alpha trimming/masking to keep only visible collision areas
  • Supports runtime/live updates with controlled rebuild frequency
  • Outputs detailed stats for optimization decisions

🎯 Projection + Collider in One Workflow

  • Generate visual decal mesh and physics collider together
  • Local/world projection control with multi-direction support
  • Triplanar and sphere-friendly projection options

🖼️ Sprite + TextMeshPro Support

  • Sprite swap/flip aware projection
  • Dynamic TMP source support with automatic refresh when content changes
  • Stable source detection during mode switches

🔄 Runtime Update System

  • Live update interval controls
  • Async rebuild API support to reduce frame spikes
  • Runtime-safe refresh path for frequently changing decals

🧬 Projection Mask Logic

  • Masks empty regions when rays partially hit surfaces
  • Keeps source fully visible when no hit occurs (void-safe fallback)

🧯 Physics Safety Layer

  • PhysX 5-safe mesh assignment path
  • Invalid/zero-volume mesh validation before collider apply
  • Safe fallback behavior to avoid collider cooking failures

📊 Stats + Analysis

  • Before/after mesh stats and timing data
  • Hit ratio and projection diagnostics
  • Inspector-side analysis for fast tuning

🧩 Performance Controls

  • Cache-friendly rebuild flow
  • Optional culling/visibility-based update reductions
  • Runtime behavior tuned for larger scenes

📚 API + Tooling

  • Public API for automation/integration
  • Hit callback hooks for gameplay effects
  • Editor tooling, presets, quick actions, and example scenes

📋 Requirements

  • Unity 2022.3 LTS or newer (recommended: Unity 6)
  • TextMeshPro for TMP-based decal sources
  • Works in both Editor and Runtime workflows

🌐 Render Pipelines

  • Built-in RP
  • URP
  • HDRP

💻 Supported Platforms

  • Editor: Windows / macOS / Linux
  • Runtime Builds: All Unity-supported platforms (PC / Mobile / Console)

🌍 Support & Community

  • Join our Discord for support, tips, and update announcements.
  • Full documentation included with a quick-start guide.

If Decal Collider improves your workflow, please consider leaving a review.

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