[3.0.1]

Fixed mask stacking when adding/removing mask component;
ScrollRectSoftMaskHandler updated to watch only viewport-parented mask;
Minor fixes.

[3.0]

Introducing 'Mask Mode' feature to draw mask as 'Normal' or 'Inverted';
Shader improvements: handling mask data by shader properties to prevent additional UV sets. Note: Requires updating custom shaders accordingly and reimporting the "TMP_SoftMaskSupport" package for compatibility.
Fixed mask stacking issues when re-parenting;
Improved performance & GC allocation;
Raised minimum support to Unity 2021.3.45f2.

Notes:

TMPTextForUISoftMask became obsolete and will be removed in further releases.
We strongly recommend doing a fresh install by deleting the old package folder to avoid potential issues. Please check the documentation for more details.

[2.0.3]

Fixed UISoftMaskWatcher to correctly share maskable materials for batching and performance optimization;
Editor improvements:

Improved swapping of unsupported TMP components;
Added ScrollRectSoftMaskHandler checker.

[2.0.2]

TMP Support:

Replacement of unsupported TMP components now requires user confirmation (previously automatic);
Fixed shader issues related to unsupported TMP objects. Note: Reimport the "TMP_SoftMaskSupport" package for compatibility;

Minor improvements and optimizations.

[2.0.1]

Added rule to instantiate external materials and allow sharing them among masks;
Editor improvements: Force TMP maskData to update when canvasMode changes;
Removed GC on ComputeFinalMaskForRendering;
Minor fixes;

[2.0]

Introduced UISoftMaskWatcher to allow assigning temporary mask materials without impacting prefab overrides;
Fixed rule to handle external materials;
Improved performance and reduced GC allocations;
Shaders updated: rectUV(float2) has been replaced with maskData(float3), which uses geometry data to enable shared materials per mask group.
Minor improvements.

Note: We strongly recommend doing a fresh install by deleting the old package folder to avoid potential issues. This update also requires updating custom shaders accordingly. Please check the documentation for more details.

[1.4.0]

Introduced ScrollRectSoftMaskHandle to improve performance when using several masks;
Fixed logic on destroying temporary materials;
Improved InitialSetup;
Blit shader updated;
Minor improvements;

[1.3.1]

Improved memory allocation: using Texture2D to prevent leaking untracked memory;
Created blit material to avoid multiple blit materials per mask.

[1.3.0]

TMP: Introduced TMPTextForUISoftMask, a TMP Text component variant to allow material preset change. Note: Any default TMP Text component will be replaced in favor of using the variant one;
Fixed logic for override mask material.

[1.2.6]

Built-In RP (Editor improvements): removed SceneViewHandle approach to prevent broken mask matrix after play scene;
Fixed assign proper mask matrix when changing rendering pipeline;
Minor improvements;

[1.2.5]

Added support to Unity 2021.3 LTS.

[1.2.4]

Built-In RP (Editor improvements): Fixed handling proper space matrix among SceneView & GameView (OverlayCanvas canvas). Note: That fix removes the workaround menu toggle for editing in SceneView;
Built-In RP: Prevent assigning mask WorldMatrix when a ScreenSpaceCamera canvas is null. Note: Unity forces an OverlayCanvas canvas when worldCamera is null);
Minor fixes.

[1.2.3]

Fixed UnassignedReferenceException when canvas is null;
Minor improvements.

[1.2.2]

Minor fix to prevent mask frame delay when starting scene.

[1.2.1]

Removed hide flags from temporary render textures to prevent crashing builds;
Fixed mask chain to assign proper rect UV when parent mask uses override transform;
MaskPreview updated: forced R16 format for performance purposes and minor improvements;
Editor improvements: improve editor to validate mask setup.

[1.2.0]

Improved compute mask chain;
Editor improvements: prevent prefabs from persisting values from source material;
Changed canvas mode callback to prevent issues when using Simulator panel only;
Shader improvements: removed statements for performance purposes;
Fixed gamma to linear conversion regression;
Updated TMP support shaders: fixed mask behavior; added listener when font material changes property. Note: Requires reimporting "TMP_SoftMaskSupport" package for compatibility;
Updated shader include files. Note: requires recompiling node-based shaders;
Minor fixes.

[1.1.1]

Fixed Mask Preview behavior and updated TMP shaders. Note: We strongly recommend reimporting "TMP_SoftMaskSupport" package for Mask Preview support;
Minor fix to prevent popping warning.

[1.1.0]

Added Mask Preview feature to debug mask output;
Added Override Transform feature to decouple mask position, scale, and rotation;
Blit mask shader updated to consider alpha channel only. Note: texture import settings require an alpha source (Input Texture Alpha or From Grayscale);
Fixed sprite rect offset: required for Packed and Multiple sprite mode;
Fixed broken sliced mode when part of an atlas.

[1.0.13]

Fixed callback when RectTranform.sizeDelta changes;
Minor fixes.

[1.0.12]

Canvas overlay mode: fixed matrix transformation to prevent scaling issues;
Shader improvements: added trim UV factor to prevent mask outbound.

[1.0.11]

Editor improvement: Fix for missing mask when performing undo/redo actions;
Fixed callback when scale changes.

[1.0.10]

Editor improvement: prevent warning on play start after editing a prefab.

[1.0.9]

Added coexisting for Gamma and Linear color spaces;
Removed keywords to avoid stripping soft mask shader variant;
Minor fixes.

[1.0.8]

Fixed enable/disable state behavior;
Minor improvements.

[1.0.7]

Added TMP font material shader change validation;
TMP package updated: Introduced support to main SDF and mobile minor fixes.

[1.0.6]

Improved atlas masking behavior;
Fixed mask rotation.

[1.0.5]

Shader improvements;
Introduced MaskUV for 9-slicing mask support;
Fixed resetting TextMesh objects during OnDisable;
General fixes.

[1.0.4]

Shader: Added support to linear color space and fixed keyword to prevent malfunctioning with Unity 6;
Added support for atlas-packed masks;
Improved functionality to allow multiple canvas modes simultaneously;
Enhanced override mask material;
Removed hidden rule for the default shader;
Built-In RP: Added a workaround menu toggle for editing in SceneView;
General fixes.

[1.0.3]

Added support for mask rotation;
Improvements to allow maskable object state for runtime purposes;
Shader improvements and general fixes.

[1.0.2]

Mask: changed to sprite type in favor of preventing user-duplicated assets;
Shader: fixed mask distortion outside bounds;
Performance and general fixes.

[1.0.1]

WorldCanvas mode improvements;
Shader: fixed instruction to allow transparent-white masks;
Added MenuItem to force include shaders in build;
General fixes.

[1.0]

First release.

AMS UI Soft Mask