Toska 0.2.1-prealpha

Toska 0.2.1 (pre-alpha)

If you have Toska 0.2.0: it offers this update by itself (Toska › Check for Updates…). If you have 0.1.0:
download this version once by hand and drag it into Applications.

New

• Brushwork that follows the picture. When the agent paints many strokes over an area, the strokes can now follow
  the forms in the picture instead of all running one way inside a box, stay inside the shape they belong to with a
  soft boundary, press and lift like a hand stroke, and stop where the colour changes. This is the first step of
  teaching the agent the brushwork of different painters and materials.
• A second try after a rejected pass. When the agent's own review undoes a pass for mechanical-looking brushwork,
  the agent now gets the reason and one more attempt, instead of stopping.

Fixed

• Every Toska package now includes the updater. A development build could be made without Check for Updates….

Known limits

• The new brushwork is early. In our own test (repainting a Degas pastel) the review still undid the first passes;
  nothing is lost when that happens, the painting stays as it was.
• Apple Silicon Macs only, macOS 14 or later.
• This is a pre-alpha: expect rough edges, and keep copies of paintings you care about.

Toska 0.2.0-prealpha

Toska 0.2.0 (pre-alpha)

If you have Toska 0.1.0: download this version once by hand and drag it into Applications. From this version on,
Toska tells you when a new version is out and installs it for you (Toska › Check for Updates…).

New

• Colour mixing. The agent's glazes, blends and wet brushes can now mix colour the way paint does instead of
  averaging RGB, so blue over yellow gives green instead of grey. Five mixing models are built in (RGB, linear light,
  perceptual, spectral and pigment), and the agent picks pigment mixing first for the brushes that support it.
  Painting that follows a reference image does not use the new mixing yet.
• Redesigned agent panel, with new Layers and Brushes tabs that show what the agent made and which brushes
  it used.
• Updates. Toska checks for a new version and installs it when you quit. It never restarts while the agent is
  painting.

Fixed

• Wash strokes with some brushes could lose strips of paint. This was a rare timing fault in the paint engine.
• A correct first pass on an empty canvas was sometimes undone by the agent's own review as "a flat block".

Known limits

• Apple Silicon Macs only, macOS 14 or later.
• This is a pre-alpha: expect rough edges, and keep copies of paintings you care about.

Update feed

appcast.xml here is what an installed Toska reads to find a new version. It is replaced at every release. Download Toska from the newest release, not from here.

Toska 0.1.0 (pre-alpha)

Signed and notarized by Apple. macOS 14 or later, Apple silicon.