Asset Validator

A Unity Editor tool that automatically validates imported 3D assets and textures against configurable project standards, logging issues to a dedicated editor window.

Demo

Overview

Maintaining pipeline quality means catching problems early. This tool hooks into Unity's import pipeline via AssetPostprocessor to validate every model and texture the moment it lands in the project, flagging naming violations, excessive poly counts, missing LODs, and texture issues without any manual intervention.

Features

• Automatic Model Validation (on import):
  • Poly Count Check: Flags meshes exceeding the configurable triangle limit (default: 65,000 tris).
  • Naming Convention: Enforces PascalCase / snake_case with no spaces or special characters.
  • LOD Warning: Warns when a high-poly mesh (> 5,000 tris) has no LODGroup component.
• Automatic Texture Validation (pre-import):
  • Naming Convention: Same pattern check applied to texture file names.
  • Max Texture Size: Caps oversized textures and logs the change.
  • Normal Map Detection: Auto-sets import type to NormalMap based on file name suffixes (_n, _nrm, normal).
• Validator Log Window (Tools > Validator Log):
  • Filterable log with Info / Warning / Error levels.
  • Auto-opens on warnings or errors so issues are never missed.
  • Clickable entries to ping the asset in the Project window.

Prerequisites

• Unity (2021.3 LTS or newer recommended).
• Place Scripts/AssetValidator.cs inside an Editor/ folder in your Unity project.

Usage

1. Drop Scripts/AssetValidator.cs into any Editor/ folder in your Unity project (e.g., Assets/Editor/).
2. Import any 3D model or texture — validation runs automatically.
3. Open Tools > Validator Log to review all flagged issues.

Configuration

Edit the static fields at the top of AssetValidator.cs to adjust thresholds:

Field	Default	Description
MaxPolyCount	65000	Maximum triangle count before a warning
MaxTextureSize	4096	Maximum import texture size
MinTextureSize	32	Minimum texture size (reference)
EnforceNaming	true	Toggle naming convention checks
CheckLODs	true	Toggle LOD group warnings

Script Reference

Scripts/AssetValidator.cs

• OnPostprocessModel(): Runs after model import. Checks triangle count, naming, and LOD groups.
• OnPreprocessTexture(): Runs before texture import. Checks naming, max texture size, and auto-detects normal maps.
• ValidatorLogWindow: Custom EditorWindow that collects and displays timestamped log entries with filtering by type.

License

This project is licensed under the MIT License - see the LICENSE file for details. Copyright (c) 2025 ARGUS