Convert OBJ to 3DS — For Game Modding & Legacy 3ds Max Pipelines
Here’s when you actually need .3ds in 2024: you’re modding a classic game (GTA, Flight Simulator, Source engine), feeding assets into a legacy render farm, or importing into a CAD tool that refuses anything newer. For everything else, [OBJ to GLB](/convert/obj-to-glb) or [OBJ to STL](/convert/obj-to-stl) is probably what you want.
Last updated Mar 2026
Drag OBJ file here (with MTL & textures), or upload a ZIP
Supports .obj files (+ .mtl, textures, or .zip) up to 150MB
Usually under 3 seconds — depends on file size.
What You Should Know
What Changes During Conversion
Geometry is preserved but all faces are triangulated (3DS only supports triangles). OBJ quads and n-gons are split. The 3DS format imposes a 65,536 vertex limit per mesh — larger meshes are automatically split into multiple objects. Object names are truncated to 10 characters (a legacy DOS limitation). Basic materials (diffuse color, specular, diffuse texture map) are approximated from .mtl data. UV coordinates are preserved.
3DS Format Limitations
3DS is a 1990s-era binary format with hard constraints: 65,536 vertex limit per object, 10-character object names, triangles only, no PBR materials, no vertex colors, and no scene hierarchy beyond simple nesting. It stores geometry in a chunked binary structure. Despite these limitations, the format remains useful for legacy interoperability — it's one of the most widely recognized 3D formats in history.
OBJ vs 3DS: Quick Comparison
| Feature | OBJ | 3DS |
|---|---|---|
| Geometry | Polygons (quads, n-gons) | Triangles only (65K vertex limit) |
| Materials | Phong/Blinn (.mtl) | Basic (diffuse, specular) |
| UV Coordinates | Supported | Supported |
| Object Names | Unlimited length | 10 characters max |
| Primary Use | Universal interchange | Legacy DCC, game modding |
| File Type | Text (ASCII) | Binary (chunked) |
Use OBJ for modern interchange, modeling, and archival. Use 3DS when your target tool or pipeline specifically requires .3ds format input.
When to Convert OBJ to 3DS
Game Modding
Many classic game modding tools (GTA modding suites, older Source engine importers, Flight Simulator scenery tools) require .3ds input. Convert OBJ assets from Blender to 3DS for these legacy modding pipelines.
Legacy Render Farm Compatibility
Some production studios maintain render pipelines built around 3ds Max scenes that reference .3ds assets. Convert new OBJ models to 3DS to integrate with these existing asset management systems.
CAD and BIM Import
Certain CAD and BIM tools (older versions of AutoCAD, SketchUp importers, some architectural visualization plugins) accept 3DS for geometry import. Convert OBJ architectural models to 3DS for these workflows.