just_liquid_glass 0.8.0

liquid glass for flutter with fewer bugs and support for a wider variety of sdf shapes

0.8.0

• Per-blob blend radius (GlassBlob.blendRadius, null to take GlassOptions.blendRadius as before). A junction fuses over the smaller of its two blobs' radii, so blendRadius: 0 keeps one blob crisp against every neighbour without touching the rest of the layer, and raising one above the layer default only bites where the blob on the other side was raised too. The shader no longer has a global blend-radius uniform at all: it rides in a slot the packed blob layout had spare, and the fold carries the locally dominant blob's radius alongside the distance, so a crisp blob at one end of a layer does not sharpen junctions at the other. Layers that never set it render bit-identically to before.

0.7.0

• Drop shadows, on by default (GlassOptions.shadowRadius, shadowIntensity, shadowOffset; shadowIntensity: 0 restores the old look and all of its cost). iOS puts one under every glass control, and without it glass over a same-toned backdrop loses its footing. It is cast by the same merged distance field the glass is, read on its outside instead of its inside, so it follows the blobby silhouette — merge bridges, distortion pushes, sector cuts and all — with no second pass, no extra texture, and no path to build: the glass pass (or the flat/opaque fill, which cast it too) emits it under its own coverage in the same fragment. The falloff is a smoothstep across ±radius, which is a blurred edge's profile to within a rounding step and has compact support, so every clip and bounding rect grows by exactly the radius (biased by the offset) and no more. A layer usually reaches its own edge, so the shadow is drawn outside the GlassLayer's bounds, like every other Flutter shadow — an ancestor that clips will cut it.
• Fixed the child shifting about a pixel and jittering back and forth while a blob animates (present since 0.6.0, at any childRefractionIntensity, including 0). The blob-region clip bounds the child's save layer, and Impeller sizes and positions that texture in physical pixels in global space, so the clip has to land on the physical grid — rounding it to whole logical pixels, as it did, leaves it off-grid at any fractional device pixel ratio (2.625 on a typical Android phone) or fractional layer position, and the child gets rasterized at a different subpixel phase every frame the bounds move. Both the clip and the child refraction filter's texture rect now snap to the physical grid; test/pixel_snap_test.dart pins it.
• The child is now refracted too (glass mode): its content bends through the bevel like the backdrop does. Strength comes from GlassOptions.childRefractionIntensity, which defaults to following refractionIntensity; set it to 0 for the old flat-child look. Costs about what the old mask did — the refraction runs in the same single pass (a new child.frag via an ordinary ImageFilterLayer, no backdrop read) that replaces the ShaderMask, evaluating coverage at the destination pixel while fetching color from the displaced source, so the silhouette stays crisp while the content swims inside it. Flat mode and non-Impeller backends keep the plain mask.

0.6.0

• Continuous corners are now fitted to Flutter's RSuperellipse (RoundedSuperellipseBorder, SwiftUI's .continuous) instead of an exponent-4 superellipse norm.
• Layers whose blob tints are all fully opaque no longer create a BackdropFilter at all. Nothing of the backdrop survives an opaque tint, so the same picture (tint, edge tint, shine, coverage) is drawn as an ordinary canvas shader — bit-identical output, pinned by test/opaque_path_test.dart — and the layer stops paying Impeller's per-backdrop-filter cost, which is a full-render-target flip every frame whether or not anything moved. The decision is made per frame at paint time, so animating a tint's alpha moves a layer between the two paths on its own.
• GlassLayer.backdropGroupKey / GlassLayer.useBackdropGroup (opt-in, off by default): several translucent glass layers can share one backdrop read instead of forcing a render-target flip each. Grouped layers all sample what was behind the group, so overlapping ones no longer refract each other — usually invisible at a decent blurRadius, and free for panes that don't overlap.
• Flat mode's fill and the shine pass now shade the blob bounds without the refraction and blur padding, which only ever widened the backdrop read.
• The child mask is clipped to the blob region before it paints. ShaderMask pushes a save layer over its whole size and evaluates the field across all of it, so a small panel in a big layer was paying for a layer-sized offscreen and a layer-sized SDF pass every frame, per layer
• Fixed a latent crash: the backdrop's clip layer was held in a bare field rather than a LayerHandle, so a paint that skipped the clip could leave a disposed layer to be reused on the next one.

0.5.0

• Added distortion blobs and GlassSwell

0.4.0

• Continuous corners are now controlled with a double that lerps from round corners instead of an enum flag.
• blobBuilder allows positioning blobs relative to current layout, pretty important for implementing Widgets!

0.3.0

• Apple-style continuous ("squircle") corners: GlassBlob.cornerContinuity blends the corner profile from circular arcs (0) to continuous corners (1). It's a plain lerpable double, so the silhouette can be animated — e.g. a fully rounded blob morphs from a true circle to an Apple-squircle.

0.2.0

• Edge tint (GlassOptions.edgeTint, opt-in — default transparent): a color spread across the bevel band, deepening toward the silhouette like the absorption of real tinted glass; keeps the outline legible over same-colored backdrops (white on white).

0.1.0

• Initial release: GlassLayer with SDF smooth-min merged GlassBlobs (rotation, elliptical half-extents, corner rounding, annular holes, angular sectors, per-blob tint).
• Glass mode (Impeller): single-pass refraction, tint and rim shine via BackdropFilter + ImageFilter.shader; backdrop blur composed as an inner engine ImageFilter.blur, so wide radii stay clean and flat-cost. Requires Flutter >= 3.41 (flutter#170820 fixed by flutter#177687).
• Flat mode (all backends): the merged blobby silhouette as a plain tint fill. GlassMode.glass resolves per-backend at runtime, falling back to flat where shader backdrop filters are unavailable.
• Motion shine (GlassOptions.motionShine, default on): the rim highlight tracks device roll via the accelerometer, keeping the light anchored in world space like iOS 26's Liquid Glass. One shared, ref-counted sensor subscription; ticks repaint only the shine pass. Falls back to the static shineDirection under reduced motion, without an accelerometer, in flat mode, or when backgrounded.