# Half-Life Model Viewer

> previews MDL files

**Wikidata**: [Q124423719](https://www.wikidata.org/wiki/Q124423719)  
**Source**: https://4ort.xyz/entity/half-life-model-viewer

## Summary  
Half-Life Model Viewer (HLMV) is software designed to preview MDL files, which are 3D model formats used primarily in Valve's GoldSrc engine games like *Half-Life*. It allows users to view, analyze, and manipulate game models outside the game environment.  

## Key Facts  
- **Alias**: Also known as HLMV.  
- **Instance of**: Classified as software (non-tangible executable component of a computer).  
- **Primary function**: Previews MDL files, the model format for GoldSrc-engine games.  
- **Wine AppDB ID**: Listed under ID 1674 for compatibility testing.  
- **Valve Developer Community article**: Documented with the ID "Half-Life_Model_Viewer" (P9675: 1689).  

## FAQs  
### Q: What file formats does Half-Life Model Viewer support?  
A: HLMV specifically supports MDL files, the proprietary 3D model format used in *Half-Life* and other GoldSrc-engine games.  

### Q: Can Half-Life Model Viewer edit models?  
A: No, HLMV is primarily a preview tool; it does not include editing capabilities for MDL files.  

### Q: Is Half-Life Model Viewer still used today?  
A: While newer tools exist, HLMV remains relevant for modders and developers working with legacy GoldSrc-engine content.  

## Why It Matters  
Half-Life Model Viewer plays a critical role for modders and developers working with *Half-Life* and related games. By enabling offline previewing of MDL files, it streamlines the workflow for asset creation and troubleshooting. Its compatibility with Wine (as noted in AppDB) also ensures accessibility across platforms. Though limited to viewing, its specialization in GoldSrc-engine models makes it a niche but valuable tool in game development and preservation.  

## Notable For  
- **Specialization**: Focused exclusively on MDL files, a format tied to Valve's early games.  
- **Legacy tool**: Maintains relevance decades after its creation due to its niche use case.  
- **Documentation**: Officially referenced in Valve's developer community resources.  

## Body  
### Functionality  
- Designed to preview MDL files without requiring in-game testing.  
- Supports basic model manipulation (e.g., rotation, scaling) for inspection.  

### Compatibility  
- Listed in Wine AppDB (ID: 1674) for testing on non-Windows systems.  
- Primarily intended for use with GoldSrc-engine titles like *Half-Life*.  

### Development Context  
- Documented in Valve Developer Community under the article ID "Half-Life_Model_Viewer."  
- No known standalone versions or updates beyond its original release.