ShaderGlassSurface class - primitives library

Constructors

ShaderGlassSurface({required Glass glass, required GlassShape shape, required Widget child, double intensity = 1.0, double thickness = 0.6, double refraction = 1.35, double blurSigma = 12, double lightAngle = -1.2, Key? key}): Creates a shader-rendered glass surface. The physical parameters default to the values fresnel's theme uses, so this is usable standalone.
const

Properties

blurSigma → double: Gaussian sigma applied under the shader, in logical pixels. Runs as a composed ui.ImageFilter.blur because Flutter's separable pass beats any multi-tap loop written in the fragment shader.
final
child → Widget: Content composited above the material. Also what sizes the surface: the shader region is measured from the child, not from incoming constraints.
final
glass → Glass: The material. Glass.identity renders child untouched.
final
hashCode → int: The hash code for this object.
no setterinherited
intensity → double: System glass intensity, 0–1. Scales the whole effect toward "off" so this surface tracks the OS preference the way native glass does.
final
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
lightAngle → double: Direction of the specular highlight, in radians. Matches Apple's top-leading key light by default; changing it per surface breaks the illusion that one light source lit the whole screen.
final
refraction → double: Index-of-refraction analogue. Higher bends edge samples further; past roughly 2.0 the lensing reads as a defect rather than glass.
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
shape → GlassShape: Outline the surface is clipped to, and the shape the signed-distance field is built from — refraction follows this edge.
final
thickness → double: How deep the slab reads, 0–1. Drives the falloff that stops the surface looking like a decal.
final

Methods

createElement() → StatefulElement: Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<ShaderGlassSurface>: Creates the mutable state for this widget at a given location in the tree.
override
debugDescribeChildren() → List<DiagnosticsNode>: Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void: Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode: Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String: A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String: Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String: Returns a one-line detailed description of the object.
inherited
toStringShort() → String: A short, textual description of this widget.
inherited

Operators

operator ==(Object other) → bool: The equality operator.
inherited

Static Properties

isSupported → bool: Whether this renderer can run at all. False on Skia and web, where callers must use FallbackGlassSurface instead.
no setter