HarmoFlow / Updates

What’s happeningwith HarmoFlow.

Explore versioned highlights and changes through clear visuals. Get to know HarmoFlow through its product film and guides.

01 / Release history

Every release, in detail.

Explore highlights and detailed changes by version.

Ver.0.1.2

What changed in Ver.0.1.2

Select layers and change their settings from the pie menu, with improved drawing across UV island boundaries and transparent PNG export. Scenes containing new 3D paths cannot be opened in Ver.0.1.1 or earlier, so keep a copy of the file from before the changes.

Watch on YouTube

Version highlights

Select layers. Adjust settings.

Open a layer list with thumbnails from the pie menu in the 3D view or UV Editor. Toggle six settings beside each card.

Read the guide
Draw across UV boundaries.

The regular 3D brush can paint across UV island boundaries on connected surfaces of the same part. Lines and fills of paths newly created in the 3D view no longer break or jump at those boundaries.

Read the guide
Keep unpainted areas transparent.

PNG export excludes the automatic Base used for display. It reflects semi-transparent painting, masks, and layer opacity, while keeping imported textures and Fill layers you added.

Read the guide

Detailed changes

New features
  • The pie menu now opens a layer list with thumbnails. Hold the right button, slide to Layers, and release over a card to select it. Available in the 3D view and UV Editor.
  • Toggle Visibility, Lock, Clipping, Alpha lock, Stroke height, and Solo beside each card. Slide to a setting and release to change only that setting.
Improvements
  • Selecting a Path layer switches to the Path tool; selecting a Paint layer switches to the brush. If Blur, UV Shell Fill, or Polygon Fill is active, that painting mode is preserved.
  • PNG export excludes the automatically added Base used for display, leaving unpainted areas transparent. Semi-transparent painting, masks, and layer opacity are reflected; imported textures and Fill layers you added remain included.
Fixes
  • The regular brush in the 3D view can now paint across UV island boundaries on connected surfaces of the same part.
  • Fixed lines and fills of paths newly created in the 3D view breaking or jumping elsewhere at UV island boundaries. Paths previously saved with UV coordinates must be recreated in the 3D view.
Notes & considerations
  • Scenes containing new 3D paths cannot be opened in Ver.0.1.1 or earlier. Keep the file from before the changes if you also need to use the scene in an older version.
  • Download the ZIP for your chosen edition from the BOOTH distribution page, extract it, and run the EXE inside to install.
  • The material catalog is included with the app. The first use of an image material requires an internet connection to retrieve its data. Downloaded materials can then be used offline.
  • The version.json attached to the GitHub release contains version information used by the app to check for updates.
View release announcement
Ver.0.1.1

What changed in Ver.0.1.1

Three updates: a pie menu, recompositing optimization, and automatic update notifications.

Watch on YouTube

Version highlights

Concept diagram; the actual interface, item count, and layout may differ.
Pie menu added

A pie menu has been added.

Both bars use the same scale. Shorter is faster.
Faster response through recompositing optimization

Recompositing optimization improves responsiveness: opacity changes are approximately 29× faster with 1,000 layers of opaque materials at 4K (median: 922 ms → 32 ms). Measured in the development environment (RTX 4070 SUPER / Core i5-12400F / DDR4 64GB). Gains vary by operation and environment.

Concept diagram; it does not show the actual interface or notification placement.
Automatic update notifications added

A feature that automatically notifies you of updates has been added.

Detailed changes

New features
  • Pie menu added
  • Automatic update notifications added
Improvements
  • Recompositing optimization improves responsiveness: opacity changes are approximately 29× faster with 1,000 layers of opaque materials at 4K (median: 922 ms → 32 ms). Measured in the development environment (RTX 4070 SUPER / Core i5-12400F / DDR4 64GB). Gains vary by operation and environment.

02 / Product introduction

See it in motion.

Paint directly on a 3D model. Build up color and surface detail. Get to know HarmoFlow in the product film.

This film introduces HarmoFlow. It does not describe changes for a particular version.

Watch on YouTube

03 / Explore the workflow

Paint. Layer. Refine.

A visual introduction to the core tools, with guides to help you try them.

3D viewUV Editor

3D & UV painting

From the surface to the UVs.

Paint directly in the 3D view and UV Editor. Apply color, roughness, and other enabled PBR channels in the same stroke.

LayerMaskComposite

Layers & masks

Build it up. Reveal what matters.

Separate your work into layers and control visibility with masks. Refine the composite while keeping the painted content.

GeometryEdge placement

Geometry-based weathering

Let the shape guide the detail.

Place procedural patterns on convex edges, concave edges, or occluded areas. Use mesh maps to refine the strength and distribution of weathering.

Original brightnessGradient map

Editable color adjustments

Keep your color choices editable.

Add Color Adjustment, Tone Curve, or Gradient Map as an adjustment layer. Refine the composite below and edit the settings again after saving.

Concept diagrams explain the tools; they are not app screenshots or exact output previews.