Trusted by 3D artists and game studios worldwide
Three steps to understand the path from a heavy mesh to a lighter one.
Identify the GLB or other mesh you want to optimize, and check whether it includes materials or separate texture files.
Pick a target for the device and scene where the model will appear. Leave room for its silhouette and important details.
Compare the shape and materials before using the reduced mesh in a viewer, game, or print workflow.
Start with the platform you're shipping to. Published limits and recommendations are guides, not universal rules.
| Target | Triangles |
|---|---|
| Mobile games, web viewers | 5K – 20K |
| PC / console games | 20K – 50K |
| Roblox — per mesh | 20,000 Cap |
| VRChat avatar — PC / mobile | 32K–70K / 7.5K–20K |
Sources: Roblox modeling specifications · VRChat Performance Ranks. Always check current platform guidance.
| Target | Triangles |
|---|---|
| Apple AR Quick Look | 100K |
| Mobile AR / web, single item | 150K |
| Snapchat Lens — total / skinned | 100K / 60K |
| 3D banner ad | 30K |
Sources: Apple AR Quick Look · Khronos 3D Commerce Publishing Guidelines · Snap Lens Studio performance guidance.
| Consideration | Guidance |
|---|---|
| Polygon count | Not the only constraint |
| Print service upload caps | Around 1M polys / 50–64 MB |
| What actually matters | Watertight geometry, wall thickness and print resolution |
| When to reduce | When upload limits or slow slicing make it necessary |
Sources: 3D print service upload guidance · STL preparation and export guidance.
Three different ways to make a model easier to use. Only decimation directly reduces an existing mesh's triangle count.
What it is: An algorithm removes triangles that contribute least to the shape. The remaining edge flow may become irregular.
Use it when: You have a triangle budget and the model does not need clean topology for later deformation.
Triangle count: Drops toward your target · File size: Often drops too
What it is: A new surface is built over the original, often with even quads that follow the form.
Use it when: The mesh needs cleaner edge flow for rigging, deformation, sculpting or subdivision.
Triangle count: Rebuilt · File size: May drop
Explore 3D workflowsWhat it is: Data is stored more efficiently without necessarily changing the triangle count.
Use it when: Download size or an upload limit matters more than the number of triangles drawn.
Triangle count: Often unchanged · File size: Can drop
About GLB compressionGo one level deeper on polygon reduction, GLB compression or the GLB format.
Preserving UV coordinates can keep textures aligned, but strong reduction may stretch the remaining triangles. Inspect textured areas and make a less aggressive pass if details begin to distort.
Reduction removes triangles from an existing surface. Remeshing rebuilds that surface and can change the topology more substantially. Choose based on whether a smaller triangle count or cleaner edge flow matters most.
GLB, GLTF, FBX, OBJ and STL are common formats. They differ in how they store materials, textures and scene information, so check the import and export options of the tool you choose.
It depends on the model. Begin with a modest reduction, compare silhouettes and curved details, and lower the budget further only while the result still looks right at its intended viewing size.
No. This page explains mesh reduction and lets you describe a goal. Continuing opens a separate 3D studio; review its available tools and terms there before supplying a model.
Often, but not always by as much as expected. Large textures and other data may account for most of a GLB's bytes; compression addresses file size differently from polygon reduction.
Explore ideas, reference images and 3D creation workflows.
Use visual references to explore a three-dimensional idea.
Turn a written concept into a starting point for 3D creation.
Explore material and surface ideas for a 3D model.
Develop visual references for a 3D project.
Consider movement and posing as part of your 3D workflow.
Take your model idea into a broader 3D creation workflow.
Explore the 3D studio