Quad Restore — Deterministic Tris To Quads

blenderVfxMaster in Modeling


DETERMINISTIC TRIS TO QUADS

Quad Restore

Have a triangulated model you’d like to edit as quads again? Quad Restore looks for triangle pairs it can join without moving the existing vertices. Preview the proposed diagonals first, or create a separate result and compare it with the source.

Quad Restore — promotional cover

Cover illustration. The screenshots and previews below are labelled separately.

01 / EXAMPLES

Look at the topology

A closer look at the restored topology, plus three side-by-side comparisons.

The recovered quad pattern

RESULT · View full size ↗

01 / RESULT

The recovered quad pattern

Look at the face structure in this close-up, not just the smooth shading. The existing surface is still the basis of the result.

Input, Blender conversion and Quad Restore

BEFORE / AFTER · View full size ↗

02 / BEFORE / AFTER

Input, Blender conversion and Quad Restore

The first side-by-side example compares the triangulated input, Blender’s Tris to Quads and Quad Restore.

The same comparison on another part

BEFORE / AFTER · View full size ↗

03 / BEFORE / AFTER

The same comparison on another part

A second component shows how the tools handle a different piece of geometry.

Curved hard-surface parts

BEFORE / AFTER · View full size ↗

04 / BEFORE / AFTER

Curved hard-surface parts

The third example adds another shape to compare. Remaining triangle counts vary with the input.

02 / FEATURES

What Quad Restore does

Here’s what you can do with it.

01

Preview first, or restore

Select Diagonals highlights the edges the tool expects to remove. Use it to check the pairings, or run Restore Quads to create the result.

02

Keep the original object

By default, the restored mesh is a separate result. Use Replace Original only when you’re happy with it.

03

Keep the shape you already have

The tool reuses the existing vertices rather than projecting a new surface. It retains transforms, material slots and supported face-material assignments while joining recoverable triangle pairs.

04

Use it on recoverable triangulation

Game assets, downloaded models, CAD-to-mesh exports and hard-surface parts can contain useful triangle pairings. How well they recover depends on the topology that’s already there.

05

Compare three real examples

The product examples report 14,261 input triangles becoming 7,108 quads with 45 triangles left. Two more inputs—22,937 and 10,098 triangles—left 127 and 72 triangles respectively. Those are example results, not promised counts for your mesh.

06

Process meshes locally

Geometry is processed on your computer. The topology examples below show model results; the cover illustration is separate.

07

Expect some triangles to remain

Borders, junctions, damaged topology and meshes built from native triangles can leave unpaired faces. You may still need manual cleanup for deformation or a specific edge flow.

03 / IN BLENDER

Previewing and restoring in Blender

The add-on in Preferences

BLENDER PREFERENCES · View full size ↗

05 / BLENDER PREFERENCES

The add-on in Preferences

This is the installed Quad Restore entry in Blender Preferences.

Preview and restore from the sidebar

CONTROLS · View full size ↗

06 / CONTROLS

Preview and restore from the sidebar

The AI Quad sidebar puts the preview and restore actions beside the selected mesh.

04 / GET STARTED

Try it on a working copy

  1. 01

    Duplicate the working mesh and fully triangulate it.

  2. 02

    Select it and open the AI Quad sidebar.

  3. 03

    Use Select Diagonals to preview, or run Restore Quads.

  4. 04

    Compare the topology and surface with the original.

  5. 05

    Keep the separate result, or replace the original after checking it.

05 / GOOD TO KNOW

Which meshes to use

  • Blender 5.2. Tested on macOS Apple Silicon.
  • Use a fully triangulated working copy.
  • Check borders, thin parts and complex junctions.
  • Keep the source until you’ve checked the result.

Does it rebuild the surface?

No. It joins recoverable triangle pairs using the existing vertices. It isn’t a general-purpose replacement for retopology.

Will it remove every triangle?

Not always. Borders, junctions and areas without a reliable pairing can still contain triangles.


  • $20
$20

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Details
Published about 1 year ago
Blender Version 5.2
Extension Type N/A
License GPL