android, object picking and DXF fixes

Patched the three regressions.

• Android Ctrl/copy mode
  • core/src/main/kotlin/com/github/alfu32/sketch/ui/ToolController.kt
  • Android now syncs copyMode from the live Ctrl modifier every frame for tools that support copy mode.
  • This avoids relying on libGDX receiving raw Ctrl key events, which Android was intercepting.
• Android render save
  • core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  • core/src/main/kotlin/com/github/alfu32/sketch/render/RenderController.kt
  • Save on Android now opens the system ACTION_CREATE_DOCUMENT picker and writes the rendered PNG through SAF.
  • It no longer silently saves to app-local storage instead of showing the dialog.
• Object picking inside larger object bounds
  • core/src/main/kotlin/com/github/alfu32/sketch/tools/SelectTool.kt
  • Removed the coarse AABB fallback from click-picking.
  • Object click-pick now requires an actual face or line hit, so an outer object no longer wins just because the ray passes through its bounds.

DXF import/export is fixed at the core path.

• core/src/main/kotlin/com/github/alfu32/sketch/export/MeshIo.kt
  - DXF import now parses:
  - LINE
  - LWPOLYLINE
  - POLYLINE / VERTEX / SEQEND
  - 3DFACE
  - SOLID
  - TRACE
  - DXF export now writes both:
  - LINE
  - 3DFACE
  - added DXF-specific geometry APIs so lines are no longer lost on import/export

  • core/src/main/kotlin/com/github/alfu32/sketch/model/GroupScene.kt
    • added MeshSegment
    • added createImportedPrototype(...) so imported objects can contain both faces and explicit linework
    • existing createMeshPrototype(...) now delegates to it
  • core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
    • DXF import now places both imported faces and imported lines into the created prototype
    • DXF export now exports both world triangles and world segments
    • selected export works for line segments too
    • export label changed from DXF 3DFACE (.dxf) to DXF LINE + 3DFACE (.dxf)
    • export status text is now generic enough for non-triangle DXF entities

  Checked:

  • GRADLE_USER_HOME=.gradle-user ./gradlew :core:compileKotlin -q

  Current behavior:

  • DXF import still follows the existing mesh-import flow:
    • create prototype
    • click to place object
  • DXF export emits explicit lines plus triangle faces
  • if a DXF has faces but no explicit lines, triangle edges are generated only when no DXF line entities were imported

  Remaining limitation:

  • exporter writes LINE + 3DFACE only; it does not try to recreate original DXF higher-level entities like LWPOLYLINE on export.

Global Illumination/Raytracing

changelog from 4.8.9 to 4.9.1:

4.9.1

• Improved the new offline renderer preview and output stability.
• Fixed saved render images being vertically flipped.
• Fixed render framing/camera mapping so the offline render matches the current view much more closely.
• Fixed directional/sun light contribution in offline rendering.
• Fixed path-tracing striping/banding artefacts.
• Fixed stale previous-pass/block artefacts in progressive rendering.
• Fixed render-window preview sizing so the preview no longer grows to the full internal buffer size.
• Added render size presets while keeping the preview window at a manageable fixed display size.
• Added a global render light level control for both raytrace and GI/path-trace.
• Added camera light intensity control.
• Added an option to disable tile pruning, with pruning now off by default.
• Improved transparent-material rendering so transmitted rays:
  • pass through transparent surfaces,
  • are tinted by material color,
  • and are dimmed according to alpha.

4.9.0

• Added a new Rendering toolbar and render window.
• Added two offline rendering modes:
  • Raytrace
  • GI / Pathtrace
• Added progressive rendering passes from coarse to fine, ordered from image center toward the borders.
• Added Stop and Save controls for offline rendering.
• Added live compositing of the offline render over the captured GPU framebuffer.
• Added blur and blend controls for the render overlay.
• Added simple glass transmission/refraction support.
• Added desktop/Android parallel tile rendering with worker pool support.
• Kept web rendering on the single-threaded fallback path.
• Added worker-count control in the render window.
• Added resolution display in the render window.

Shorter store/update-note version:

• Introduced a new offline rendering window with Raytrace and GI/Pathtrace modes.
• Added progressive center-out rendering, save/stop controls, worker-count control, size presets, blur/blend controls, and adjustable lighting.
• Improved transparency handling for glass-like materials.
• Fixed multiple offline renderer issues including framing, lighting, vertical save flip, striping, and progressive pass artefacts.

UX/jar plugins/dimension bounds

4.8.9

In Short:

• Hotspot dragging now previews the resulting geometry in wireframe and shows live movement measurements.
• Array tool previews now show far more copies.
• Desktop now supports precompiled jar plugins.
• Plugin loading is disabled on unsupported Web/Android runtimes.
• Dimension selection bounds are now tight and correct.

TLDR

• Added live hotspot drag feedback:
  • shows the hotspot movement line
  • shows measurement feedback while dragging
  • shows a wireframe preview of the future geometry driven by the hotspot
• Increased array/multiplier preview capacity:
  • ghost/wireframe preview limit raised from 32 to 10000
• Added desktop support for precompiled plugin jars:
  • plugin manager can now load .jar plugins in addition to Groovy script plugins
  • jar plugins can expose their entry point through:
    • META-INF/services/com.github.alfu32.sketch.plugin.Plugin
    • or manifest Plugin-Class / K3D-Plugin-Class / Octodraw-Plugin-Class
• Restricted plugins to supported runtimes:
  • plugin loading is now disabled on Web and Android
  • avoids unsupported runtime/classloading paths on those targets
• Fixed dimension bounding boxes:
  • selection/frame bounds now use the actual rendered dimension geometry
  • extension lines, dimension line, and slash markers are all accounted for
  • bounds are now tight instead of oversized/wrong

staged loading/fixes/maintenance

4.8.8

• Added staged model loading with visible progress instead of a long blind startup stall.
• File loading now initializes the app scene first, then loads the model in steps.
• Added a modal load dialog with progress feedback and an Abort button.
• Scene application during load is now chunked across frames, so the UI stays responsive while loading.
• Opening a file now creates a .bak copy as part of the staged load flow.
• Aborting a load no longer overwrites the target file or the previously opened file.
• Camera is reset to a valid default position immediately when a load starts.
• Added Edit Selected Object action for entering object edit mode more directly.
• Fixed object click-picking regression where objects were not selected correctly by direct click.
• Fixed orbit camera target auto-glue on faces, including root faces and object faces.
• Fixed hotspot-driven object geometry refresh so stale face shells are no longer left visible after deformation.

4.8.7

• Added a numeric Circle segments setting to Model Settings.
• Circle preview and generated geometry now use the configured segment count.
• Default circle segment count is now 24.
• Added internal optimizations for model delete/change handling.
• Added asynchronous/background spatial indexing work for model/query structures.
• Reduced excessive render/status feedback caused by indexing progress spam.
• Fixed linear/multiple translate array multiplication spacing faults.
• Disabled Snap bundle generation from the default desktop bundle pipeline to stop unrelated desktop builds from failing on Snap packaging.

4.8.6 -> 4.8.8 overall

• Major work on model loading, scene application, and persistence safety.
• Better responsiveness and feedback when opening large files.
• Safer cancel behavior during load.
• Better object editing workflow.
• Fixes for object picking, camera face snapping, and hotspot-driven geometry updates.

array tools

feat(tools): arrays and array hotspots

implemented the array tools and fixed the existing translate-multiple behavior.

What changed

• core/src/main/kotlin/com/github/alfu32/sketch/tools/MultipleCopyTools.kt
  • fixed CopyMultipleTool
    • step direction now comes from a - o
    • copy count now comes from the span of b - o projected onto that step direction
    • the old tool was using the final span direction and projecting the measure onto it, which was the wrong geometry
  • added PlanarTranslateMultipleTool
    • repeats in the xoz plane
    • offsets are built from the measured step components on x and z
  • added VolumetricTranslateMultipleTool
    • repeats in x, y, and z
    • offsets are built from the measured step components on all three axes
  • added proper preview rendering for planar/volumetric translated arrays
• core/src/main/kotlin/com/github/alfu32/sketch/model/GroupScene.kt
  • fixed hotspot multiplier behavior to match the same semantics
  • for hotspots:
    • o = referencePosition
    • a = hotspot definition position
    • b = runtime target / instance value
  • MULTIPLY_LINEAR now uses the measured step vector from o -> a
  • MULTIPLY_VOLUMETRIC now uses per-axis step ratios from o -> a and o -> b
  • I did not invent a new planar hotspot operation; planar hotspot behavior is the ny = 0 case of volumetric multiplication
• core/src/main/kotlin/com/github/alfu32/sketch/ui/ToolId.kt
  • added:
    • PLANAR_TRANSLATE_MULTIPLE
    • VOLUMETRIC_TRANSLATE_MULTIPLE
• core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  • registered both new tools
  • added them to the built-in tool command palette list
• core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt
  • added both tools to the modification toolbar
  • added icon-name/color mapping fallbacks
• core/src/main/kotlin/com/github/alfu32/sketch/ui/ToolInputProcessor.kt
  • added both tools to the M-cycle with the other transform tools

feat(tools): arrays and array hotspots

implemented the array tools and fixed the existing translate-multiple behavior.

What changed

• core/src/main/kotlin/com/github/alfu32/sketch/tools/MultipleCopyTools.kt
  • fixed CopyMultipleTool
    • step direction now comes from a - o
    • copy count now comes from the span of b - o projected onto that step direction
    • the old tool was using the final span direction and projecting the measure onto it, which was the wrong geometry
  • added PlanarTranslateMultipleTool
    • repeats in the xoz plane
    • offsets are built from the measured step components on x and z
  • added VolumetricTranslateMultipleTool
    • repeats in x, y, and z
    • offsets are built from the measured step components on all three axes
  • added proper preview rendering for planar/volumetric translated arrays
• core/src/main/kotlin/com/github/alfu32/sketch/model/GroupScene.kt
  • fixed hotspot multiplier behavior to match the same semantics
  • for hotspots:
    • o = referencePosition
    • a = hotspot definition position
    • b = runtime target / instance value
  • MULTIPLY_LINEAR now uses the measured step vector from o -> a
  • MULTIPLY_VOLUMETRIC now uses per-axis step ratios from o -> a and o -> b
  • I did not invent a new planar hotspot operation; planar hotspot behavior is the ny = 0 case of volumetric multiplication
• core/src/main/kotlin/com/github/alfu32/sketch/ui/ToolId.kt
  • added:
    • PLANAR_TRANSLATE_MULTIPLE
    • VOLUMETRIC_TRANSLATE_MULTIPLE
• core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  • registered both new tools
  • added them to the built-in tool command palette list
• core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt
  • added both tools to the modification toolbar
  • added icon-name/color mapping fallbacks
• core/src/main/kotlin/com/github/alfu32/sketch/ui/ToolInputProcessor.kt
  • added both tools to the M-cycle with the other transform tools

fix(tools): arrays and array hotspots

• core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt:5987
  - PLANAR_TRANSLATE_MULTIPLE now maps to multiple-copy-translate-planar
  - VOLUMETRIC_TRANSLATE_MULTIPLE now maps to multiple-copy-translate-volumetric

fix(snapcraft): release

• Moved the Snapcraft project file to the repo root:
  - snapcraft.yaml

  • Removed the old nested config:
    • snap/snapcraft.yaml
  • Kept the GUI assets under:
    • snap/gui/octodraw.desktop
    • snap/gui/icon.png

  Gradle change

  • lwjgl3/build.gradle
    • bundleLinuxSnap now copies:
      • root snapcraft.yaml into the Snapcraft project root
      • snap/ into the staged snap/ directory
    • local Snap build still uses Snapcraft, not mksquashfs

  CI change

  • .github/workflows/release.yml
    • Linux CI no longer installs Snapcraft
    • Linux CI no longer runs :lwjgl3:bundleLinuxSnap
    • Linux CI no longer uploads *.snap

extra array tools

feat(tools): arrays and array hotspots

implemented the array tools and fixed the existing translate-multiple behavior.

What changed

• core/src/main/kotlin/com/github/alfu32/sketch/tools/MultipleCopyTools.kt
  • fixed CopyMultipleTool
    • step direction now comes from a - o
    • copy count now comes from the span of b - o projected onto that step direction
    • the old tool was using the final span direction and projecting the measure onto it, which was the wrong geometry
  • added PlanarTranslateMultipleTool
    • repeats in the xoz plane
    • offsets are built from the measured step components on x and z
  • added VolumetricTranslateMultipleTool
    • repeats in x, y, and z
    • offsets are built from the measured step components on all three axes
  • added proper preview rendering for planar/volumetric translated arrays
• core/src/main/kotlin/com/github/alfu32/sketch/model/GroupScene.kt
  • fixed hotspot multiplier behavior to match the same semantics
  • for hotspots:
    • o = referencePosition
    • a = hotspot definition position
    • b = runtime target / instance value
  • MULTIPLY_LINEAR now uses the measured step vector from o -> a
  • MULTIPLY_VOLUMETRIC now uses per-axis step ratios from o -> a and o -> b
  • I did not invent a new planar hotspot operation; planar hotspot behavior is the ny = 0 case of volumetric multiplication
• core/src/main/kotlin/com/github/alfu32/sketch/ui/ToolId.kt
  • added:
    • PLANAR_TRANSLATE_MULTIPLE
    • VOLUMETRIC_TRANSLATE_MULTIPLE
• core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  • registered both new tools
  • added them to the built-in tool command palette list
• core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt
  • added both tools to the modification toolbar
  • added icon-name/color mapping fallbacks
• core/src/main/kotlin/com/github/alfu32/sketch/ui/ToolInputProcessor.kt
  • added both tools to the M-cycle with the other transform tools

feat(tools): arrays and array hotspots

implemented the array tools and fixed the existing translate-multiple behavior.

What changed

• core/src/main/kotlin/com/github/alfu32/sketch/tools/MultipleCopyTools.kt
  • fixed CopyMultipleTool
    • step direction now comes from a - o
    • copy count now comes from the span of b - o projected onto that step direction
    • the old tool was using the final span direction and projecting the measure onto it, which was the wrong geometry
  • added PlanarTranslateMultipleTool
    • repeats in the xoz plane
    • offsets are built from the measured step components on x and z
  • added VolumetricTranslateMultipleTool
    • repeats in x, y, and z
    • offsets are built from the measured step components on all three axes
  • added proper preview rendering for planar/volumetric translated arrays
• core/src/main/kotlin/com/github/alfu32/sketch/model/GroupScene.kt
  • fixed hotspot multiplier behavior to match the same semantics
  • for hotspots:
    • o = referencePosition
    • a = hotspot definition position
    • b = runtime target / instance value
  • MULTIPLY_LINEAR now uses the measured step vector from o -> a
  • MULTIPLY_VOLUMETRIC now uses per-axis step ratios from o -> a and o -> b
  • I did not invent a new planar hotspot operation; planar hotspot behavior is the ny = 0 case of volumetric multiplication
• core/src/main/kotlin/com/github/alfu32/sketch/ui/ToolId.kt
  • added:
    • PLANAR_TRANSLATE_MULTIPLE
    • VOLUMETRIC_TRANSLATE_MULTIPLE
• core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  • registered both new tools
  • added them to the built-in tool command palette list
• core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt
  • added both tools to the modification toolbar
  • added icon-name/color mapping fallbacks
• core/src/main/kotlin/com/github/alfu32/sketch/ui/ToolInputProcessor.kt
  • added both tools to the M-cycle with the other transform tools

fix(tools): arrays and array hotspots

• core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt:5987
  - PLANAR_TRANSLATE_MULTIPLE now maps to multiple-copy-translate-planar
  - VOLUMETRIC_TRANSLATE_MULTIPLE now maps to multiple-copy-translate-volumetric

fix(snapcraft): release

• Moved the Snapcraft project file to the repo root:
  - snapcraft.yaml

  • Removed the old nested config:
    • snap/snapcraft.yaml
  • Kept the GUI assets under:
    • snap/gui/octodraw.desktop
    • snap/gui/icon.png

  Gradle change

  • lwjgl3/build.gradle
    • bundleLinuxSnap now copies:
      • root snapcraft.yaml into the Snapcraft project root
      • snap/ into the staged snap/ directory
    • local Snap build still uses Snapcraft, not mksquashfs

  CI change

  • .github/workflows/release.yml
    • Linux CI no longer installs Snapcraft
    • Linux CI no longer runs :lwjgl3:bundleLinuxSnap
    • Linux CI no longer uploads *.snap

performance improvements

• 34f88e2 fix(model): indexing
• b269c60 feat(model): indexing
• 88d7c5b fix(snap): platform detection failure
• 9e73f83 improve(model): pick handling, line-to-line intersect
• c0db7bd fix(snap-build): snap package faults
• 62623f4 fix(snap-build): snap package faults
• 86b3461 fix(snap-build): snap package faults

fix(model): indexing

• core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  - computeGroupFaceMeshVisualStamp(...) already now includes the group world transform, so moved instances invalidate correctly
  - I also added syncGroupFaceBundles() on every render pass, not only during root face-mesh rebuild
  - that forces dead/deleted child-group mesh bundles to be dropped even when the root face mesh itself did not need rebuilding
• core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  - computeGroupFaceMeshVisualStamp(...) already now includes the group world transform, so moved instances invalidate correctly
  - I also added syncGroupFaceBundles() on every render pass, not only during root face-mesh rebuild
  - that forces dead/deleted child-group mesh bundles to be dropped even when the root face mesh itself did not need rebuilding

fix(snap): permissions

feat(model): indexing

• core/src/main/kotlin/com/github/alfu32/sketch/Main.kt

  • computeGroupFaceMeshVisualStamp(...) already now includes the group world transform, so moved instances invalidate correctly
  • I also added syncGroupFaceBundles() on every render pass, not only during root face-mesh rebuild
  • that forces dead/deleted child-group mesh bundles to be dropped even when the root face mesh itself did not need rebuilding
    relevant fixes are:

• no per-frame frustum/index render path

• no mutation-path index rebuild while drawing lines

• no indexed prefilter on group volume selection

• group face bundles now invalidate on transform changes

• deleted group bundles are synced out every frame

fix(snap): platform detection failure

patched lwjgl3/build.gradle.

What changed

• Snap app command now goes through a wrapper:
  • command: bin/octodraw-launch
• The build now generates bin/octodraw-launch inside the snap
• The wrapper sets pragmatic desktop env fallbacks before execing the real launcher:
  • XDG_RUNTIME_DIR=/run/user/$(id -u) if missing
  • WAYLAND_DISPLAY=wayland-0 if that socket exists
  • DISPLAY=:0 if /tmp/.X11-unix/X0 exists
  • then exec "$SNAP/octodraw-jre" "$@"

improve(model): pick handling, line-to-line intersect

plan:

• Replace the current category-based pick arbitration with a unified nearest-geometry pick path.
  • Test active-group faces/edges and child object instance faces/edges in the same hit pass.
  • Choose the nearest geometric hit in world space.
  • Only then resolve what it belongs to: object, wall, slab, frame, etc.
  • This avoids both failure modes:
    • walls/slabs behind objects winning
    • objects behind walls/slabs winning
• Wire the line spatial index into segment insertion and auto-split.
  • Compute the new segment AABB.
  • Query indexed candidate segments from that AABB.
  • Run exact intersectSegments(...) only on those candidates.
  • Do the same for endpoint snapping using a small point-radius AABB.
• Add coarse render culling at scene/group level.
  • Frustum-test world AABBs of groups/objects before drawing.
  • Use this as the first render optimization pass before any chunked cubic culling.

Implemented the three changes.

• Geometry-first object picking:
  • core/src/main/kotlin/com/github/alfu32/sketch/tools/SelectTool.kt
  • basic pick resolution now uses a unified nearest-hit pool for voxels/faces/edges/dimensions/texts/child objects instead of category arbitration
  • architecture/HVAC root picks are now gated so a nearer child object instance can win over walls/slabs behind it
  • I did not switch category priority; the decision is still based on geometric hit distance
• Indexed segment insertion / auto-split:
  • core/src/main/kotlin/com/github/alfu32/sketch/model/DraftLineStore.kt
  • endpoint snapping now queries a small indexed AABB around the point
  • segment insertion now queries indexed candidate segments from the new segment AABB before running exact intersectSegments(...)
  • that removes the full-scan path from the normal insertion/split workflow
• Coarse render culling:
  • core/src/main/kotlin/com/github/alfu32/sketch/model/GroupScene.kt
  • core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  • added queryGroupsByFrustum(...) using the group spatial index plus frustum/AABB filtering
  • child object/group faces are now rendered through per-group mesh bundles and only submitted when in view
  • child group draft lines are also culled by the same visible-group set

Important scope note:

• this is scene/group-level culling, not cubic chunk culling
• root geometry is still rendered as one root mesh; the culling now applies to child object/group geometry first, which is what we agreed to do before any finer chunking

fix(snap-build): snap package faults

• added install badges

fix(snap-build): snap package faults

• added install badges

fix(snap-build): snap package faults

• added install badges

4.8.2: fix(snap-store): snap package pipelines

• 34f88e2 fix(model): indexing
• b269c60 feat(model): indexing
• 88d7c5b fix(snap): platform detection failure
• 9e73f83 improve(model): pick handling, line-to-line intersect
• c0db7bd fix(snap-build): snap package faults
• 62623f4 fix(snap-build): snap package faults
• 86b3461 fix(snap-build): snap package faults

fix(model): indexing

• core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  - computeGroupFaceMeshVisualStamp(...) already now includes the group world transform, so moved instances invalidate correctly
  - I also added syncGroupFaceBundles() on every render pass, not only during root face-mesh rebuild
  - that forces dead/deleted child-group mesh bundles to be dropped even when the root face mesh itself did not need rebuilding
• core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  - computeGroupFaceMeshVisualStamp(...) already now includes the group world transform, so moved instances invalidate correctly
  - I also added syncGroupFaceBundles() on every render pass, not only during root face-mesh rebuild
  - that forces dead/deleted child-group mesh bundles to be dropped even when the root face mesh itself did not need rebuilding

fix(snap): permissions

feat(model): indexing

• core/src/main/kotlin/com/github/alfu32/sketch/Main.kt

  • computeGroupFaceMeshVisualStamp(...) already now includes the group world transform, so moved instances invalidate correctly
  • I also added syncGroupFaceBundles() on every render pass, not only during root face-mesh rebuild
  • that forces dead/deleted child-group mesh bundles to be dropped even when the root face mesh itself did not need rebuilding
    relevant fixes are:

• no per-frame frustum/index render path

• no mutation-path index rebuild while drawing lines

• no indexed prefilter on group volume selection

• group face bundles now invalidate on transform changes

• deleted group bundles are synced out every frame

fix(snap): platform detection failure

patched lwjgl3/build.gradle.

What changed

• Snap app command now goes through a wrapper:
  • command: bin/octodraw-launch
• The build now generates bin/octodraw-launch inside the snap
• The wrapper sets pragmatic desktop env fallbacks before execing the real launcher:
  • XDG_RUNTIME_DIR=/run/user/$(id -u) if missing
  • WAYLAND_DISPLAY=wayland-0 if that socket exists
  • DISPLAY=:0 if /tmp/.X11-unix/X0 exists
  • then exec "$SNAP/octodraw-jre" "$@"

improve(model): pick handling, line-to-line intersect

plan:

• Replace the current category-based pick arbitration with a unified nearest-geometry pick path.
  • Test active-group faces/edges and child object instance faces/edges in the same hit pass.
  • Choose the nearest geometric hit in world space.
  • Only then resolve what it belongs to: object, wall, slab, frame, etc.
  • This avoids both failure modes:
    • walls/slabs behind objects winning
    • objects behind walls/slabs winning
• Wire the line spatial index into segment insertion and auto-split.
  • Compute the new segment AABB.
  • Query indexed candidate segments from that AABB.
  • Run exact intersectSegments(...) only on those candidates.
  • Do the same for endpoint snapping using a small point-radius AABB.
• Add coarse render culling at scene/group level.
  • Frustum-test world AABBs of groups/objects before drawing.
  • Use this as the first render optimization pass before any chunked cubic culling.

Implemented the three changes.

• Geometry-first object picking:
  • core/src/main/kotlin/com/github/alfu32/sketch/tools/SelectTool.kt
  • basic pick resolution now uses a unified nearest-hit pool for voxels/faces/edges/dimensions/texts/child objects instead of category arbitration
  • architecture/HVAC root picks are now gated so a nearer child object instance can win over walls/slabs behind it
  • I did not switch category priority; the decision is still based on geometric hit distance
• Indexed segment insertion / auto-split:
  • core/src/main/kotlin/com/github/alfu32/sketch/model/DraftLineStore.kt
  • endpoint snapping now queries a small indexed AABB around the point
  • segment insertion now queries indexed candidate segments from the new segment AABB before running exact intersectSegments(...)
  • that removes the full-scan path from the normal insertion/split workflow
• Coarse render culling:
  • core/src/main/kotlin/com/github/alfu32/sketch/model/GroupScene.kt
  • core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  • added queryGroupsByFrustum(...) using the group spatial index plus frustum/AABB filtering
  • child object/group faces are now rendered through per-group mesh bundles and only submitted when in view
  • child group draft lines are also culled by the same visible-group set

Important scope note:

• this is scene/group-level culling, not cubic chunk culling
• root geometry is still rendered as one root mesh; the culling now applies to child object/group geometry first, which is what we agreed to do before any finer chunking

fix(snap-build): snap package faults

• added install badges

fix(snap-build): snap package faults

• added install badges

fix(snap-build): snap package faults

• added install badges

4.8.1: feat(ui): topdown and leftright layout,png export

fix(android): ctrl key

Android Ctrl handling is now stateful instead of relying only on transient meta flags:
- core/src/main/kotlin/com/github/alfu32/sketch/InputModifiers.kt:11
- android/src/main/kotlin/com/github/alfu32/sketch/android/AndroidLauncher.kt:30
- this keeps Ctrl active while dragging for move-copy / rotate-copy, and clears it on focus loss/destroy
fix(ui-toolbars): auto resizing issue

• Non-resizable toolbars now ignore stale saved width/height and repack from content:
  • core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt:5029
  • so changing toolbar button size now resizes the toolbar windows correctly

feat(ui): resizable text

• Added UI text scaling presets:
  • 1x, 1.5x, 2x
  • wired in UI Settings
  • persisted in prefs
  • applied to VisUI skin fonts and relaid out live

fix(ui): resize effect propagation failure

patched the UI scale refresh path in core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt.

• rebuildToolbarsForUiScaleChange() now finishes with a full UI refresh instead of only marking layout dirty, so icon-size changes reflow immediately too: core/src/main/kotlin/com/
  github/alfu32/sketch/ui/SketchUiOverlay.kt:4523
• Added recursive layout invalidation/validation for the full actor tree, not just top-level widgets: core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt:4550
• Rebuilds the right dock scroll container on scale changes, resets the cached dock width, and immediately repositions/revalidates panels and toolbars: core/src/main/kotlin/com/
  github/alfu32/sketch/ui/SketchUiOverlay.kt:4568
• refreshUiForTextScaleChange() now forces an immediate full relayout/repack of dock panels, input widgets, toolbars, and floating UI instead of waiting for a later collapse/expand or
  frame pass: core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt:4592

fix(ui): resize effect propagation failure

patched the UI scale refresh path in core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt.

• rebuildToolbarsForUiScaleChange() now finishes with a full UI refresh instead of only marking layout dirty, so icon-size changes reflow immediately too: core/src/main/kotlin/com/
  github/alfu32/sketch/ui/SketchUiOverlay.kt:4523
• Added recursive layout invalidation/validation for the full actor tree, not just top-level widgets: core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt:4550
• Rebuilds the right dock scroll container on scale changes, resets the cached dock width, and immediately repositions/revalidates panels and toolbars: core/src/main/kotlin/com/
  github/alfu32/sketch/ui/SketchUiOverlay.kt:4568
• refreshUiForTextScaleChange() now forces an immediate full relayout/repack of dock panels, input widgets, toolbars, and floating UI instead of waiting for a later collapse/expand or
  frame pass: core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt:4592

fix(ui): resize effect toolbars failure

The remaining bug was exactly where the toolbar windows are positioned.

• positionTopFlowToolbars() was still reapplying saved width/height even for non-resizable toolbars, so after icon-size changes the rebuilt toolbar content grew but the host window
  got forced back to the old size and clipped the buttons.
• I fixed that in core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt:4997 so non-resizable toolbars always use current prefWidth/prefHeight, same as
  applyToolbarState() already did.

fix(ui): resize effect toolbars failure

The remaining bug was exactly where the toolbar windows are positioned.

• positionTopFlowToolbars() was still reapplying saved width/height even for non-resizable toolbars, so after icon-size changes the rebuilt toolbar content grew but the host window
  got forced back to the old size and clipped the buttons.
• I fixed that in core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt:4997 so non-resizable toolbars always use current prefWidth/prefHeight, same as
  applyToolbarState() already did.

fix(ui): toolbar relayout bug

Fixed in core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt.

• Hover expand/collapse no longer marks all toolbars for global re-layout, so moving the mouse does not snap toolbars back to their saved positions.
• Toggling Auto-collapse toolbars no longer calls positionPanels(), so manual toolbar placement is preserved.
• Collapsed toolbars now force their width from the visible button/content width instead of the title width, so plugin toolbars collapse to button-sized hosts too.

fix(ui): toolbar persistence bug

• The problem was in the persistence trigger.

• Toolbar state was only being saved from the window touchUp listener.
• With auto-collapse enabled, that is not reliable enough:
  • collapse/expand changes happen without a drag save
  • collapsed toolbars can end up with state changes that never hit that listener
• Result: the runtime layout looked correct, but the stored x/y stayed stale, so after restart you got old positions.

patched core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt.

feat(ui): linewidth and UI layout helpers

• UI Settings now has a Normal line width slider in core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt
  • wired to core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  • it drives the non-thick 2D ShapeRenderer.ShapeType.Line overlay batches: selection rect, tutorial arrow, hotspot outlines
  • this is best-effort on Android/Desktop because glLineWidth support is driver-dependent
• Toolbar padding and layout spacing were reduced in core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt
  • button cell padding: 0
  • toolbar content padding: 0
  • toolbar layout margin/gap reduced to 4f
• Added two toolbar arrangement buttons in UI Settings:
  • Flow L->R
    • lays toolbars left-to-right, wraps top-to-down, and stops before the right dock
  • Flow T->D
    • lays toolbars top-to-down, wraps left-to-right from the left edge
  • both save the resulting positions immediately
• Existing toolbar persistence stays active
  • toolbar positions are continuously persisted in act(...), so explicit arrangement and manual repositioning both survive restart

fix(ui): toolbars collapsed width glitch

• The collapsed toolbar width logic was already shrinking the content area.
• But the VisWindow title label still kept its full text, so the window pref width stayed title-driven on initial render and in auto-collapse mode.

I fixed it in core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt.

• CollapsibleWindow now stores its base title and can switch to a compact-title mode
• when a toolbar is auto-collapsed:
  • the title text is set to ""
• when expanded:
  • the full title is restored

That makes the collapsed window width depend on the visible button, not on the title text.

fix(ui): toolbars collapsed width glitch

• Collapsed toolbars no longer use an empty title.
• They now use the first 4 characters of the original title:
  - baseTitle.take(4)

feat(ui): topdown and leftright layout,png export

improve the layout l-r procedure:

• the toolbars should be sorted in such a way that they fill a maximum of space on each line
  and layout t-d procedure:
• the toolbars should be sorted by width : the largest on top to the smallest on the bottom

the png exporter will export a screenshot of the rendering buffer without the UI

• Added PNG Screenshot (*.png) to the exporter list in core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
  - desktop, web, and Android export flows now accept PNG
  - PNG export captures the rendered scene before UI/2D overlay drawing
  - desktop save, web download, and Android SAF write are all wired through the same pending export path
  • Fixed the desktop export dialog integration in core/src/main/kotlin/com/github/alfu32/sketch/Main.kt
    • it now maps the selected desktop dialog option back to the real export option
    • dialog wording is generic now, not mesh-only
    • direct file export also handles .png correctly
  • Improved toolbar L->R layout in core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt
    • uses first-fit decreasing row packing
    • fills each row more tightly instead of naive sequential wrap
    • the default top-flow placement for unsaved toolbars uses the same strategy now
  • Kept T->D width-driven in core/src/main/kotlin/com/github/alfu32/sketch/ui/SketchUiOverlay.kt
    • visible toolbars are sorted by width descending
    • largest go first/top, then wrap to the next column

feat(snap-store): snap package pipelines

What changed

• lwjgl3/build.gradle
  • added bundleLinuxSnap
  • it builds from dist/octodraw-dist--linux
  • generates:
    • meta/snap.yaml
    • meta/gui/octodraw.desktop
    • meta/gui/icon.png
  • packs the snap with mksquashfs to:
    • dist/octodraw-dist--linux.snap
  • Linux local pipelines now include it:
    • :lwjgl3:bundleLocal depends on bundleLinuxSnap on Linux
    • :lwjgl3:dev depends on bundleLinuxSnap on Linux
• .github/workflows/release.yml
  • Linux CI now installs squashfs-tools
  • Linux build job now runs:
    • :lwjgl3:bundleLinuxTar
    • :lwjgl3:bundleLinuxSnap
    • :lwjgl3:jarLinux
    • :core:pluginApiJar
  • uploaded Linux artifacts now include:
    • dist/*.snap
  • release upload now includes *.snap

fix(snap-store): snap package pipelines

Fixed.

Cause:

...

UI improvements

changelog short

• ui settings improvements:
• settings for thin and thick line width
• font size selection (1x,1.5x,2x)
• ui improvements:
• toolbars autocollapse into a single button-width toolbar, autoexpands when hovered, optional through ui settings
• autoalign toolbars left-to right/top-down or top-to-down/left-to-right
• set selection color directly in the selection panel
• fix android control key

changelog detailed

fix(android): ctrl key

Android Ctrl handling is now stateful instead of relying only on transient meta flags
- this keeps Ctrl active while dragging for move-copy / rotate-copy, and clears it on focus loss/destroy
fix(ui-toolbars): auto resizing issue

• Non-resizable toolbars now ignore stale saved width/height and repack from content
  • changing toolbar button size now resizes the toolbar windows correctly

feat(ui): resizable text

• Added UI text scaling presets:
  • 1x, 1.5x, 2x
  • wired in UI Settings
  • persisted in prefs
  • applied to VisUI skin fonts and relaid out live

fix(ui): resize effect propagation failure

• rebuildToolbarsForUiScaleChange() now finishes with a full UI refresh instead of only marking layout dirty, so icon-size changes reflow immediately too
• Added recursive layout invalidation/validation for the full actor tree, not just top-level widgets
• Rebuilds the right dock scroll container on scale changes, resets the cached dock width, and immediately repositions/revalidates panels and toolbars
• refreshUiForTextScaleChange() now forces an immediate full relayout/repack of dock panels, input widgets, toolbars, and floating UI instead of waiting for a later collapse/expand or frame pass

fix(ui): resize effect toolbars failure

The remaining bug was exactly where the toolbar windows are positioned.

• positionTopFlowToolbars() was still reapplying saved width/height even for non-resizable toolbars, so after icon-size changes the rebuilt toolbar content grew but the host window
  got forced back to the old size and clipped the buttons.
• I fixed that so non-resizable toolbars always use current prefWidth/prefHeight, same as
  applyToolbarState() already did.

fix(ui): toolbar relayout bug

• Hover expand/collapse no longer marks all toolbars for global re-layout, so moving the mouse does not snap toolbars back to their saved positions.
• Toggling Auto-collapse toolbars no longer calls positionPanels(), so manual toolbar placement is preserved.
• Collapsed toolbars now force their width from the visible button/content width instead of the title width, so plugin toolbars collapse to button-sized hosts too.

fix(ui): toolbar persistence bug

• The problem was in the persistence trigger.

• Toolbar state was only being saved from the window touchUp listener.
• With auto-collapse enabled, that is not reliable enough:
  • collapse/expand changes happen without a drag save
  • collapsed toolbars can end up with state changes that never hit that listener
• Result: the runtime layout looked correct, but the stored x/y stayed stale, so after restart you got old positions.

feat(ui): linewidth and UI layout helpers

• UI Settings now has a Normal line width slider
  • drives the non-thick 2D ShapeRenderer.ShapeType.Line overlay batches: selection rect, tutorial arrow, hotspot outlines
  • this is best-effort on Android/Desktop because glLineWidth support is driver-dependent
• Toolbar padding and layout spacing were reduced
  • button cell padding: 0
  • toolbar content padding: 0
  • toolbar layout margin/gap reduced to 4f
• Added two toolbar arrangement buttons in UI Settings:
  • Flow L->R
    • lays toolbars left-to-right, wraps top-to-down, and stops before the right dock
  • Flow T->D
    • lays toolbars top-to-down, wraps left-to-right from the left edge
  • both save the resulting positions immediately
• Existing toolbar persistence stays active
  • toolbar positions are continuously persisted in act(...), so explicit arrangement and manual repositioning both survive restart

fix(ui): toolbars collapsed width glitch

• The collapsed toolbar width logic was already shrinking the content area.

• But the VisWindow title label still kept its full text, so the window pref width stayed title-driven on initial render and in auto-collapse mode.

• CollapsibleWindow now stores its base title and can switch to a compact-title mode

• when a toolbar is auto-collapsed:

  • the title text is set to ""

• when expanded:

  • the full title is restored

That makes the collapsed window width depend on the visible button, not on the title text.