Simple Collider
Matthias Patscheider
This release fixes two crashes: one when creating colliders from curve, text, or metaball objects, and one in the Oriented Minimum BBox collider on degenerate geometry.
Bug Fixes
- #674: Fixed a crash when creating a collider from a curve, text, or metaball object with "Use Modifier Stack" disabled (the default).
- #673: Fixed the Oriented Minimum BBox collider crashing on degenerate/flat geometry with no triangular convex-hull face to orient from (now skips that island with a warning instead), and fixed its scratch mesh/object leaking as orphan data-blocks on every use.
This release adds scene-wide collider validation and an alternative CoACD-based Auto Convex backend, alongside a round of responsiveness and stability fixes for collider creation and conversion.
Features & Improvements
- #548: Validation Checks (BETA) — a new "Validate Colliders" report (N-panel) that scans the scene or current selection for common collider problems: missing colliders, non-manifold geometry, flipped normals, oversized triangle counts, colliders that are too small, mismatched bounding boxes, too many colliders per render mesh, naming-convention mismatches, missing parenting, missing physics materials, and (optional, off by default) heuristic checks for shapes that don't match their claimed type (box, convex, etc.) or that could use a simpler primitive. Every check can be toggled and tuned individually in preferences.
- #583: Auto Convex (High Precision) using CoACD — an alternative convex decomposition backend alongside the existing V-HACD integration, producing tighter hulls at the cost of being significantly slower, with its own set of preferences (resolution, MCTS search parameters, preprocessing mode, etc.).
- #660: Auto Convex (both V-HACD and CoACD) now runs asynchronously with a live progress overlay (phase, percentage, elapsed time) instead of freezing Blender for the duration of the run — Escape cancels a run in progress.
- #642: Capsule collider generation is no longer marked BETA.
- #552: Improved handling of multi-scene setups and ignored linked libraries.
- #555: New Post Processing preferences tab with "Auto Apply on Creation" options — automatically limit newly created colliders to a target triangle count and/or move their origin to match their parent's, right after creation.
- #631, #638, #641: Various responsiveness improvements to collider creation/conversion (fewer redundant depsgraph evaluations and a cached modifier-stack bake while dragging modal parameters).
- #640: The modal HUD now allows typing numeric values directly instead of only mouse-dragging.
- #635: Updated 3D viewport navigation and HUD colors/backdrop during collider creation.
- #634: Changed default keybindings for several operators.
- #627: Added a "reload add-on" button to preferences for easier development.
- #628: A warning is now shown when creating a collider for an object with no rigid body set.
- #636, #637: Convert operators are now disabled (rather than failing) when the current selection isn't a valid target.
- #643: Removed the debug-only preferences flag (Prefs.debug) and the dead debug_parenting_off flag, along with the code paths behind them.
- The update checker now respects Blender's "Allow Online Access" preference before making its network request, and the manifest now declares this network permission.
Bug Fixes
- #558, #639: Fixed a false negative in parent-inverse shear detection that could let a sheared parent transform silently distort a collider.
- #630: Fixed collider instances not being initialized properly in some scenes.
- #629: Fixed a crash when interacting with sphere segment counts below 2.
- #625: Fixed viewport drawing overlays being removed when an operator failed.
- #644, #645, #646, #647, #648: Hardened Validation Checks — fixed a crash on regex metacharacters in the naming check, render-object types (curve/surface/font/metaball) being skipped by several checks, one object's failure aborting the entire scan, results persisting across file loads instead of being scoped per file, and added progress feedback for large-scene scans.
- #660: Fixed a crash and silent transform/parenting loss on hulls when an Auto Convex job finished while the mouse wasn't over the 3D viewport.
Known limitations
- Validation Checks ships as BETA: expect rough edges, and please report issues so they can be addressed before its BETA label is removed.
Release Notes
Simple Collider v1.1.6
This update introduces K-DOP colliders, a Convert to Empty operator, macOS ARM64 support for Auto Convex, a significantly improved capsule generation algorithm, and major performance fixes for loose-island collider generation on large assets. A big shout-out to amechtley, who contributed the macOS support, performance fixes, and tests in this update!
Features & Improvements
- #614: macOS ARM64 Support — Auto Convex is now available on macOS ARM64 (Apple Silicon). The binary is signed and notarized with Apple, with a minimum supported version of macOS 11.0 (Big Sur). (amechtley)
- #562: Convert to Empty — new operator that converts collider mesh objects to Blender Empty objects using primitive display types (cube, sphere, etc.) for engines that support lightweight empty-based collision.
- #616: K-DOP Collider — added a new K-DOP (Discrete Oriented Polytope) collider type with support for 14-DOP and 18-DOP slab configurations.
- #615: Improved capsule collider accuracy — replaced the bounding-box depth calculation with axis-projected hemisphere fitting, producing significantly tighter capsules.
- #618: Improved triangle count operator — replaced the naive step-loop with a binary search approach and added a configurable iterations setting for better accuracy and speed.
Bug Fixes
- #617: Fixed oriented bounding box rotation being incorrectly reset when a custom rotation is active.
- #558: Fixed inverse matrix cleanup overriding custom rotation on oriented bounding boxes.
- #603: Fixed loose-island collider generation hanging and crashing on large assets — eliminated O(N²) island detection, O(N²) hide calls, O(N²) name searches, O(N) depsgraph rebuilds per parenting call, and orphaned mesh data accumulation. Up to ~84× speedup on large meshes. (amechtley)
- #609: Fixed T-key collider group toggle causing unnecessary renames when groups share the same naming formula, and fixed O(N²) rename loop in the group toggle handler. (amechtley)
- [#622] (https://github.com/Weisl/simple_collider/issues/622):Fixed: Addon settings not initialized on registration (preset, material, groups)
Full Blender 5.0 Support
Simple Collider v1.1.1
This update focuses on UI improvements, bug fixes, and enhanced compatibility with Blender 4.5.
Features & Improvements
- #556: UI Improvement: Added menu indicator to Pie Menu.
- #564: UI: Added Support section to preferences.
- #565: Physics Materials: Now uses Nodes for Collision materials.
- #568: Added post-processing cleanup for matrix_parent_inverse on uniformly scaled base meshes.
Bug Fixes
Simple Collider v1.1.0
This update introduces support for Blender 4.5 and includes several new features.
Features
- #546: Improve collider auto-renaming with sequential numbering.
- #547: Added operator to copy parent pivot for colliders.
- #549: Added maximum triangle limit for collider shapes operator.
- #553: Ensured compatibility and tested for Blender 4.5.
- #545: Added preference to disable automatic material creation for colliders.
- #523: Linked collision collection across all relevant scenes.
This release is the last version that supports the legacy add-on version and is compatible with Blender 4.1 and older.
This release fixes two crashes: one when creating colliders from curve, text, or metaball objects, and one in the Oriented Minimum BBox collider on degenerate geometry.
Bug Fixes
- #674: Fixed a crash when creating a collider from a curve, text, or metaball object with "Use Modifier Stack" disabled (the default).
- #673: Fixed the Oriented Minimum BBox collider crashing on degenerate/flat geometry with no triangular convex-hull face to orient from (now skips that island with a warning instead), and fixed its scratch mesh/object leaking as orphan data-blocks on every use.
This release adds scene-wide collider validation and an alternative CoACD-based Auto Convex backend, alongside a round of responsiveness and stability fixes for collider creation and conversion.
Features & Improvements
- #548: Validation Checks (BETA) — a new "Validate Colliders" report (N-panel) that scans the scene or current selection for common collider problems: missing colliders, non-manifold geometry, flipped normals, oversized triangle counts, colliders that are too small, mismatched bounding boxes, too many colliders per render mesh, naming-convention mismatches, missing parenting, missing physics materials, and (optional, off by default) heuristic checks for shapes that don't match their claimed type (box, convex, etc.) or that could use a simpler primitive. Every check can be toggled and tuned individually in preferences.
- #583: Auto Convex (High Precision) using CoACD — an alternative convex decomposition backend alongside the existing V-HACD integration, producing tighter hulls at the cost of being significantly slower, with its own set of preferences (resolution, MCTS search parameters, preprocessing mode, etc.).
- #660: Auto Convex (both V-HACD and CoACD) now runs asynchronously with a live progress overlay (phase, percentage, elapsed time) instead of freezing Blender for the duration of the run — Escape cancels a run in progress.
- #642: Capsule collider generation is no longer marked BETA.
- #552: Improved handling of multi-scene setups and ignored linked libraries.
- #555: New Post Processing preferences tab with "Auto Apply on Creation" options — automatically limit newly created colliders to a target triangle count and/or move their origin to match their parent's, right after creation.
- #631, #638, #641: Various responsiveness improvements to collider creation/conversion (fewer redundant depsgraph evaluations and a cached modifier-stack bake while dragging modal parameters).
- #640: The modal HUD now allows typing numeric values directly instead of only mouse-dragging.
- #635: Updated 3D viewport navigation and HUD colors/backdrop during collider creation.
- #634: Changed default keybindings for several operators.
- #627: Added a "reload add-on" button to preferences for easier development.
- #628: A warning is now shown when creating a collider for an object with no rigid body set.
- #636, #637: Convert operators are now disabled (rather than failing) when the current selection isn't a valid target.
- #643: Removed the debug-only preferences flag (Prefs.debug) and the dead debug_parenting_off flag, along with the code paths behind them.
- The update checker now respects Blender's "Allow Online Access" preference before making its network request, and the manifest now declares this network permission.
Bug Fixes
- #558, #639: Fixed a false negative in parent-inverse shear detection that could let a sheared parent transform silently distort a collider.
- #630: Fixed collider instances not being initialized properly in some scenes.
- #629: Fixed a crash when interacting with sphere segment counts below 2.
- #625: Fixed viewport drawing overlays being removed when an operator failed.
- #644, #645, #646, #647, #648: Hardened Validation Checks — fixed a crash on regex metacharacters in the naming check, render-object types (curve/surface/font/metaball) being skipped by several checks, one object's failure aborting the entire scan, results persisting across file loads instead of being scoped per file, and added progress feedback for large-scene scans.
- #660: Fixed a crash and silent transform/parenting loss on hulls when an Auto Convex job finished while the mouse wasn't over the 3D viewport.
Known limitations
- Validation Checks ships as BETA: expect rough edges, and please report issues so they can be addressed before its BETA label is removed.
Release Notes
Simple Collider v1.1.6
This update introduces K-DOP colliders, a Convert to Empty operator, macOS ARM64 support for Auto Convex, a significantly improved capsule generation algorithm, and major performance fixes for loose-island collider generation on large assets. A big shout-out to amechtley, who contributed the macOS support, performance fixes, and tests in this update!
Features & Improvements
- #614: macOS ARM64 Support — Auto Convex is now available on macOS ARM64 (Apple Silicon). The binary is signed and notarized with Apple, with a minimum supported version of macOS 11.0 (Big Sur). (amechtley)
- #562: Convert to Empty — new operator that converts collider mesh objects to Blender Empty objects using primitive display types (cube, sphere, etc.) for engines that support lightweight empty-based collision.
- #616: K-DOP Collider — added a new K-DOP (Discrete Oriented Polytope) collider type with support for 14-DOP and 18-DOP slab configurations.
- #615: Improved capsule collider accuracy — replaced the bounding-box depth calculation with axis-projected hemisphere fitting, producing significantly tighter capsules.
- #618: Improved triangle count operator — replaced the naive step-loop with a binary search approach and added a configurable iterations setting for better accuracy and speed.
Bug Fixes
- #617: Fixed oriented bounding box rotation being incorrectly reset when a custom rotation is active.
- #558: Fixed inverse matrix cleanup overriding custom rotation on oriented bounding boxes.
- #603: Fixed loose-island collider generation hanging and crashing on large assets — eliminated O(N²) island detection, O(N²) hide calls, O(N²) name searches, O(N) depsgraph rebuilds per parenting call, and orphaned mesh data accumulation. Up to ~84× speedup on large meshes. (amechtley)
- #609: Fixed T-key collider group toggle causing unnecessary renames when groups share the same naming formula, and fixed O(N²) rename loop in the group toggle handler. (amechtley)
- [#622] (https://github.com/Weisl/simple_collider/issues/622):Fixed: Addon settings not initialized on registration (preset, material, groups)
Full Blender 5.0 Support
Simple Collider v1.1.1
This update focuses on UI improvements, bug fixes, and enhanced compatibility with Blender 4.5.
Features & Improvements
- #556: UI Improvement: Added menu indicator to Pie Menu.
- #564: UI: Added Support section to preferences.
- #565: Physics Materials: Now uses Nodes for Collision materials.
- #568: Added post-processing cleanup for matrix_parent_inverse on uniformly scaled base meshes.
Bug Fixes
This update introduces support for Blender 4.5 and includes several new features.
Features
- #546: Improve collider auto-renaming with sequential numbering.
- #547: Added operator to copy parent pivot for colliders.
- #549: Added maximum triangle limit for collider shapes operator.
- #553: Ensured compatibility and tested for Blender 4.5.
- #545: Added preference to disable automatic material creation for colliders.
- #523: Linked collision collection across all relevant scenes.
This release is the last version that supports the legacy add-on version and is compatible with Blender 4.1 and older.
This release fixes two crashes: one when creating colliders from curve, text, or metaball objects, and one in the Oriented Minimum BBox collider on degenerate geometry.
Bug Fixes
- #674: Fixed a crash when creating a collider from a curve, text, or metaball object with "Use Modifier Stack" disabled (the default).
- #673: Fixed the Oriented Minimum BBox collider crashing on degenerate/flat geometry with no triangular convex-hull face to orient from (now skips that island with a warning instead), and fixed its scratch mesh/object leaking as orphan data-blocks on every use.
This release adds scene-wide collider validation and an alternative CoACD-based Auto Convex backend, alongside a round of responsiveness and stability fixes for collider creation and conversion.
Features & Improvements
- #548: Validation Checks (BETA) — a new "Validate Colliders" report (N-panel) that scans the scene or current selection for common collider problems: missing colliders, non-manifold geometry, flipped normals, oversized triangle counts, colliders that are too small, mismatched bounding boxes, too many colliders per render mesh, naming-convention mismatches, missing parenting, missing physics materials, and (optional, off by default) heuristic checks for shapes that don't match their claimed type (box, convex, etc.) or that could use a simpler primitive. Every check can be toggled and tuned individually in preferences.
- #583: Auto Convex (High Precision) using CoACD — an alternative convex decomposition backend alongside the existing V-HACD integration, producing tighter hulls at the cost of being significantly slower, with its own set of preferences (resolution, MCTS search parameters, preprocessing mode, etc.).
- #660: Auto Convex (both V-HACD and CoACD) now runs asynchronously with a live progress overlay (phase, percentage, elapsed time) instead of freezing Blender for the duration of the run — Escape cancels a run in progress.
- #642: Capsule collider generation is no longer marked BETA.
- #552: Improved handling of multi-scene setups and ignored linked libraries.
- #555: New Post Processing preferences tab with "Auto Apply on Creation" options — automatically limit newly created colliders to a target triangle count and/or move their origin to match their parent's, right after creation.
- #631, #638, #641: Various responsiveness improvements to collider creation/conversion (fewer redundant depsgraph evaluations and a cached modifier-stack bake while dragging modal parameters).
- #640: The modal HUD now allows typing numeric values directly instead of only mouse-dragging.
- #635: Updated 3D viewport navigation and HUD colors/backdrop during collider creation.
- #634: Changed default keybindings for several operators.
- #627: Added a "reload add-on" button to preferences for easier development.
- #628: A warning is now shown when creating a collider for an object with no rigid body set.
- #636, #637: Convert operators are now disabled (rather than failing) when the current selection isn't a valid target.
- #643: Removed the debug-only preferences flag (Prefs.debug) and the dead debug_parenting_off flag, along with the code paths behind them.
- The update checker now respects Blender's "Allow Online Access" preference before making its network request, and the manifest now declares this network permission.
Bug Fixes
- #558, #639: Fixed a false negative in parent-inverse shear detection that could let a sheared parent transform silently distort a collider.
- #630: Fixed collider instances not being initialized properly in some scenes.
- #629: Fixed a crash when interacting with sphere segment counts below 2.
- #625: Fixed viewport drawing overlays being removed when an operator failed.
- #644, #645, #646, #647, #648: Hardened Validation Checks — fixed a crash on regex metacharacters in the naming check, render-object types (curve/surface/font/metaball) being skipped by several checks, one object's failure aborting the entire scan, results persisting across file loads instead of being scoped per file, and added progress feedback for large-scene scans.
- #660: Fixed a crash and silent transform/parenting loss on hulls when an Auto Convex job finished while the mouse wasn't over the 3D viewport.
Known limitations
- Validation Checks ships as BETA: expect rough edges, and please report issues so they can be addressed before its BETA label is removed.
Release Notes
Simple Collider v1.1.6
This update introduces K-DOP colliders, a Convert to Empty operator, macOS ARM64 support for Auto Convex, a significantly improved capsule generation algorithm, and major performance fixes for loose-island collider generation on large assets. A big shout-out to amechtley, who contributed the macOS support, performance fixes, and tests in this update!
Features & Improvements
- #614: macOS ARM64 Support — Auto Convex is now available on macOS ARM64 (Apple Silicon). The binary is signed and notarized with Apple, with a minimum supported version of macOS 11.0 (Big Sur). (amechtley)
- #562: Convert to Empty — new operator that converts collider mesh objects to Blender Empty objects using primitive display types (cube, sphere, etc.) for engines that support lightweight empty-based collision.
- #616: K-DOP Collider — added a new K-DOP (Discrete Oriented Polytope) collider type with support for 14-DOP and 18-DOP slab configurations.
- #615: Improved capsule collider accuracy — replaced the bounding-box depth calculation with axis-projected hemisphere fitting, producing significantly tighter capsules.
- #618: Improved triangle count operator — replaced the naive step-loop with a binary search approach and added a configurable iterations setting for better accuracy and speed.
Bug Fixes
- #617: Fixed oriented bounding box rotation being incorrectly reset when a custom rotation is active.
- #558: Fixed inverse matrix cleanup overriding custom rotation on oriented bounding boxes.
- #603: Fixed loose-island collider generation hanging and crashing on large assets — eliminated O(N²) island detection, O(N²) hide calls, O(N²) name searches, O(N) depsgraph rebuilds per parenting call, and orphaned mesh data accumulation. Up to ~84× speedup on large meshes. (amechtley)
- #609: Fixed T-key collider group toggle causing unnecessary renames when groups share the same naming formula, and fixed O(N²) rename loop in the group toggle handler. (amechtley)
- [#622] (https://github.com/Weisl/simple_collider/issues/622):Fixed: Addon settings not initialized on registration (preset, material, groups)
Full Blender 5.0 Support
Simple Collider v1.1.1
This update focuses on UI improvements, bug fixes, and enhanced compatibility with Blender 4.5.
Features & Improvements
- #556: UI Improvement: Added menu indicator to Pie Menu.
- #564: UI: Added Support section to preferences.
- #565: Physics Materials: Now uses Nodes for Collision materials.
- #568: Added post-processing cleanup for matrix_parent_inverse on uniformly scaled base meshes.
Bug Fixes
This update introduces support for Blender 4.5 and includes several new features.
Features
- #546: Improve collider auto-renaming with sequential numbering.
- #547: Added operator to copy parent pivot for colliders.
- #549: Added maximum triangle limit for collider shapes operator.
- #553: Ensured compatibility and tested for Blender 4.5.
- #545: Added preference to disable automatic material creation for colliders.
- #523: Linked collision collection across all relevant scenes.
This release is the last version that supports the legacy add-on version and is compatible with Blender 4.1 and older.
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