What is Polygon count?
Polygon count, usually measured in triangles, is the number of faces that make up a 3D model. It's the main measure of a model's geometric weight.
GPUs render triangles. Quads and n-gons are split into triangles before rendering, so "tris" is the honest number to compare. More triangles allow smoother curves and finer detail, but cost memory, download size and frame time.
Real examples from our library
| Model | Triangles |
|---|---|
| Electrical boxes | ~2,400 |
| Upright piano | ~3,600 |
| Tactical helmet | ~8,400 |
| Cyberpunk car | ~48,000 |
| Horse skeleton (scan) | ~135,000 |
Rough budgets
There's no fixed rule, because it depends on how many objects are on screen, the device and everything else in the scene. As a starting point: background props on mobile under ~5k, typical desktop props 5k–50k, hero objects and characters higher. Most of a model's visual quality comes from its textures, not its triangle count.
Reducing it
Decimation removes triangles automatically and is quick but messy. Retopology rebuilds the mesh cleanly. LODs swap in lighter versions with distance. Our guide to reducing polygon count walks through each option.
Written with AI assistance and reviewed by the Renderlyst team. Corrections welcome at alishbakhalid766@gmail.com.