Production Rebuild (Premium)
Production Rebuild creates a new quad layout for dense organic, scan, and generated meshes. It is not the same operation as Smart Convert and should not be used simply to force a hard-surface asset to 100% quads.
What happens
- Premium creates or verifies a hidden full-object source backup.
- A temporary working copy is prepared for the external solver. Very dense inputs can be reduced on this disposable copy only.
- If the temporary copy inherited shape keys, they are removed from that copy before topology-changing preparation. The source and protected backup remain untouched.
- The field-based quadrangulation solver runs outside Blender's UI thread.
- The result is imported and projected back toward the protected source surface.
- Premium validates quad coverage and sampled quad aspect quality before accepting the result.
Density presets
The presets are bounded production budgets, not direct multipliers of an arbitrarily dense source:
| Preset | Approximate rule | Maximum target |
|---|---|---|
| Draft | about 12% of source, with a practical floor | 30,000 faces |
| Medium | about 20% of source | 50,000 faces |
| Standard | about 32% of source | 80,000 faces |
| High | about 48% of source | 120,000 faces |
| Ultra | about 65% of source | 180,000 faces |
For a roughly 397k-face source, the presets therefore land near 30k / 50k / 80k / 120k / 180k rather than scaling into millions of faces. The exact solver output can vary.
Hard-surface guard
Likely manufactured/hard-surface geometry is blocked from Production Rebuild by default. Use Smart Convert or Regions first. If you intentionally want a destructive rebuild, enable Allow Hard-Surface Rebuild under Advanced.
Quality validation
A rebuild is not accepted merely because it contains quads. Outputs below the required quad-coverage threshold or with pathologically stretched sampled quads can be rejected so a poor solve does not silently replace the source.
Important limits
- Production Rebuild creates new geometry; exact shape-key, vertex-index, and UV correspondence cannot be guaranteed.
- It is not a replacement for hand-authored facial or joint loops when deformation flow must be art-directed precisely.
- If the production solver binaries are unavailable, Premium may report or use a compatibility fallback rather than the preferred field-based solve.