* Clean-up of node_3d_editor_plugin.{h,cpp}: removed unused code, fixed some bugs.
* Moved node_3d_editor_gizmos.{h,cpp} to editor/plugins.
* Added support for multiple gizmos per node. This means custom gizmos will no longer override the built-in ones and that multiple gizmos can be used in more complex nodes.
* Added support for handle IDs. When adding handles to a gizmo, an ID can be specified for each one, making it easier to work with gizmos that have a variable number of handles.
* Added support for subgizmos, selectable elements that can be transformed without needing a node of their own. By overriding _subgizmo_intersect_frustum() and/or _subgizmo_intersect_ray() gizmos can define which subgizmos should be selected on a region or click selection. Subgizmo transformations are applied using get/set/commit virtual methods, similar to how handles work.
* Added a new macro SNAME() that constructs and caches a local stringname.
* Subsequent usages use the cached version.
* Since these use a global static variable, a second refcounter of static usages need to be kept for cleanup time.
* Replaced all theme usages by this new macro.
* Replace all signal emission usages by this new macro.
* Replace all call_deferred usages by this new macro.
This is part of ongoing work to optimize GUI and the editor.
- Use a smaller drag threshold (8 pixels instead of 10 pixels).
- Scale the 2D editor drag threshold with the zoom to make it
work the same regardless of the current zoom level.
Neither name is a perfect match but `Curve3Texture` looked too similar to
`CurveTexture` and `Curve3D`, which made things confusing when picking a
texture type or browsing the API reference.
- To make things easier to follow, display the asset name in
confirmation dialogs.
- Display the number of conflicting files in the asset extraction dialog.
This reduces the number of clicks required to install an asset.
- Add 1-5 shortcuts to zoom between 100% and 1600% quickly
(similar to GIMP).
- When holding down Alt, go through integer zoom values if above 100%
or fractional zoom values with integer denominators if below 100%
(50%, ~33.3%, 25%, …).
Clean: remove duplicate and interior vertices (uses Bullet algorithm)
Simplify: modify the geometry for further simplification (uses VHACD
algorithm)
In the editor, single convex hull now uses the clean option.
Added a new editor entry to create a simplified convex hull, can be
useful for creating convex hull from highly tessellated triangle meshes.
