Changelog

[1.4.0] - 2024-10-21

Mipmap texture generation, for smooth texture/SVG rendering at different 3D perspectives
XIConsole element (experimental / in development)
XIDropdown “Value” property getter/setter
XILabel string text constructor
XIElement Remove element method

Performance optimizations with DepthSort
Performance optimizations with standard renderer
- Using structs instead of per-frame object allocations
- Update caching and memory pooling
Performance optimizations in animation updater
ComputeTextDimensions issue introduced in Unity 6
HDRP render feature
TMP submesh / text rendering
Font weight rendering
Clip/stencil texture causing faded UI elements in VR/stereo

fwidth aliased factor, for smoother border rect rendering
XIStyleSheet split into multiple different USS modules
XI no longer requires configuration assets, will use default resource values if not provided
XIManager now takes an optional XIConfiguration
URP default RenderPassEvent changed to BeforeRenderingTransparents (for common VR use case)

Cursor display element
Custom style:
- --xi-cursor-pass for passing class from hovered elements to cursor/pointer display

Asset is now installed as a package
XIDocument modals are applied with the UXML embedded stylesheets from document root

XIDropdown additional constructor that accepts choice list
Layout property getter for XIElement
XIPanel to manage document attachment in XIManager
Custom style:
- --xi-coloring for choosing different color targets for source properties
Stereo support macros in xi shaders
Ability to change render pass event in config
OnPointerMiss callback, useful for detecing when a pointer input hasn’t hit a document

Performance issues resolved with reducing GC allocations
Performance issues with clipping update
Performance issues with hierarchy update
XIHeading and XIParagraph elements addeded to registry
Stylesheet updater and inherited style propagation
- This fixes weird text issues / glitches found when hovering over text fields (font seemed to change during hover)
XIDocument updates when UIDocument visual tree asset is modified
Null exception by checking for null materials on draw mesh calls
UXML style source paths now point to local paths
Issues with rendering XI document in VR/Quest/stereo environment
Issues found in build
- calling DirtyStyleSheets while not in editor
- Profiler usage while non in editor

uint keys are used for style property logic, internally
Structs are used in places of classes where reasonable
Hierarchy update logic is more efficient
XIDocument attachment logic with XIManager and XIPanel
Background images are now handled with unity property ‘background-image’
Demo icons are no longer serialized properties in document manager but are set within uss

XIMonitor window for debugging and monitoring
Support for masked password fields
Slider progress indicator
XI Default Runtime Theme reference to XI Pixel Panel
Updating of styles when adding / changing stylesheets of XI documents
New demo examples
XIHeading and XIParagraph elements
Font asset cache
Cascading / inheritable custom styles
Support for unity font-style uss property (normal, bold, italic)
Custom styles:
- --xi-text-decoration for rendering underline and strike-through text
- --xi-font-family for taking in a list of font names in order of fallback precendence
- --xi-background-image-emission for applying emissions to background images
Namespaces for all code in samples

Performance issues with text rendering
Performance issues with stencil clipping implementation
Improve performance with reducing matrix calculations
Null exception when disabling XI documents
Gradient shader bug when changing the number of stops in the gradient of an element
Rect material config reference is now valid
HDRP shadergraph missing image filter
Text layout/rendering stretching issues, text now renders accurately with UI Builder
Text clipping issue with decorative text and alternate typefaces
Concurrent modification error in XIRender when switching scenes/cameras

Improved demo sample
Rename XI.hlsl to Rect.hlsl
Renderer file organization
Shader fill/solid shrink epsilon calculation
XI Standard Renderer now expects user-created renderer config instead of the old individual properties
Renderer config now takes a list of available font assets instead of one
images using -unity-background-image-tint-color now use added style --xi-background-image-emission instead of --xi-color-emission
Certain custom styles now cascade down to child elements
XI Keyboard prefab now has “Stretch” document scale mode