Scene weight
One number for how expensive your scene is, broken down by what is costing you — and the only performance measure that can block a publish.
Open in the interactive manual →The interactive version has full-text search, a table of contents, and light/dark themes.
Scene weight boils a whole scene down to a single score in points, then shows you which parts of it earned those points. It's the fastest read on "is this scene too much?", and unlike the other tools on this page it has teeth: an extremely heavy scene can be refused at publish time.
Where to see it
- Scene stats (Viewport menu) — the meter sits under the live vertex/poly/draw counts and updates as you build.
- The publish dialog — the same meter, so you see the score at the moment it matters.
Reading the score
| Score | What it means |
|---|---|
| Up to 45 — light | Should run well everywhere, including older phones. |
| 45 to 100 — moderate | Fine on desktops and recent phones; older or low-end devices may drop frames. |
| Over 100 — heavy | Past the red line. Expect problems on phones and slow loads everywhere. |
The meter is stacked: each band is one category, sized by what it contributes, biggest first — so the bar itself tells you what to trim. The categories are Geometry (triangles), Draw calls, Shadows, Textures, Particles, Volumetric beams, Lights, Video, Post-processing, Scene data, and Nodes, each with the count behind it.
Weight at publish time
- Over the red line — publishing still works. It goes through with a warning naming the categories to trim.
- Over the hard cap — publishing is refused, and a dialog shows the meter plus the heaviest categories so you know exactly what to shrink. Trim and publish again.
The cap is twice the red line (200 points) — far enough above it that only genuinely extreme scenes hit it. An already-published site that's over the cap is never bricked: you can keep republishing it as long as it doesn't get any heavier.
The AI assistant and Claude over MCP see the score too — they get a weight warning as they build, so a scene assembled by chat tends to stay in budget on its own.