SculptForge Files

Fixes from a ZBrush artist's testing, and ZTools from ZBrush.

ZBrush feel (tester feedback on 0.7)

• ZBrush input style: every zoom drag (Ctrl+right-drag, Alt-drag then release Alt, Ctrl+middle-drag) zooms out when dragged up, as in ZBrush; the SculptForge style keeps zooming in. Rotation and panning were checked and already follow the cursor as in ZBrush.
• Ctrl brushes, as in ZBrush: while Ctrl is held the left shelf shows the mask brush (MaskPen, MaskLasso, MaskRect) and its stroke (Dots, Lasso, Rect); the Brush picker (Ctrl+B or a Ctrl+click on the brush tile) and the Stroke picker opened with Ctrl held pick among them. Ctrl+Shift does the same for SelectRect and SelectLasso. Tool > Masking and Tool > Visibility keep their buttons.
• Polygroups > Group by UVs (ZBrush UV Groups): one polygroup per UV island of the visible mesh, undoable; polygroup_uv command for the console, CLI, MCP and Python.

Texture painting (ZBrush tester feedback)

• New Texture on the top shelf and in the Color palette whenever the Paint brush (or Rgb) is on and the SubTool has no texture: one click starts texture painting, running Auto UV first (with its progress in the status bar) when there are no UVs. Ctrl-hover help; also in F3 search.
• Faster texture strokes: a dab paints its texels in parallel over 16-row bands with the same result on any number of threads, and the view uploads only the 64x64 tiles that changed. A big-brush dab on a 4K texture went from 29 to 6 ms (1.3K triangles) and from 47 to 11 ms (328K triangles) on an M1 Pro (docs/performance.md).
• Checked that texture paint doesn't depend on the mesh density: a hard stamp gives the same texels on a 2-triangle plane as on an 8K-triangle one (new unit test). Paint that looks as coarse as the mesh is polypaint: the Vertex target, or polypaint shown multiplied over the texture.

ZTools from ZBrush

• SculptForge ZTool Export, a ZBrush plug-in (integrations/zbrush, ZScript, GPL-3.0-or-later, attached to releases): ZPlugin > SculptForge > Convert ZTL / Save for SculptForge writes every SubTool of a ZTool at its highest subdivision level as <name>.sf<NNN>_<SubTool>.GoZ next to the .ZTL.
• Opening a .ZTL (File > Open, drag and drop, open) opens that conversion as SubTools in order, with names, polygroups, polypaint, mask and UVs, and warns when the .ZTL is newer than the conversion; without one the message points to the plug-in. A folder of numbered .GoZ files (<name>.sculptforge) opens the same way.

Downloads

New here? install/ explains which file to pick, or install with one command: curl -fsSL https://raw.githubusercontent.com/islandmed/SculptForge/main/install/install.sh | sh (macOS / Linux), irm https://raw.githubusercontent.com/islandmed/SculptForge/main/install/install.ps1 | iex (Windows PowerShell). Each file is also attached without its version number (e.g. SculptForge-macos.dmg) so links to releases/latest/download/... always get the newest build.

The builds are not code-signed yet. macOS: right-click the app → Open the first time. Windows: if SmartScreen appears, choose More info → Run anyway. Checksums are in SHA256SUMS.txt.