From deeb8ac54f71d4322a778336db9a7aec411c23ce Mon Sep 17 00:00:00 2001 From: Gabriel Schneider Date: Mon, 28 Sep 2026 16:44:51 -0300 Subject: G1: Lift, soft elevation shadows (off by default) `Lift` (a GUI toggle, capability lift) lifts the focused pane on a critically damped spring (animation.Spring: closed form, about 240 ms to settle, velocity kept across retargets, settled = no frames) and floats notices. The core puts the lift on the regions (Region.lift, on the wire); the GUI casts from it: a soft shadow is decor, an erf rectangle on one quad grown by 3 sigma (decor.frag, flag 0x10000000), in the quad's own space so a track's transform carries it; darken-only, the caster's rect left alone, alpha pre-warped for linear light and IGN-dithered. Cast last in its group, so a neighbour's rails and rules darken with its text; a notice's before its rule. Strength is capped per theme so text over the darkest shadow keeps min(its contrast, 4.5) (test over the native themes). Opt-in until the focus lift/dim default is decided. Feel review material: docs/effects.md. Test-mode PARDES_TEST_SERIES keeps every captured frame. Shared files touched: pardes.zig (two fields, one nextWake line), detached/wire.zig (lift on the region), config.zig, builtins.zig (capability), gui.zig. Not touched: Messages.zig, mouse.zig, tty, host_io. --- src/pardes.zig | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'src/pardes.zig') diff --git a/src/pardes.zig b/src/pardes.zig index f559b125..449ef798 100644 --- a/src/pardes.zig +++ b/src/pardes.zig @@ -4111,6 +4111,10 @@ pub const Pardes = struct { theme_file_generation: u32 = 0, theme_file_pane: u8 = 0, chrome_animation: colors.ChromeAnimation = colors.ChromeAnimation.init(colors.initial_chrome), + /// Each pane's lift off the page (Lift): 1 while it has the focus, on a + /// spring. `lift_serials` says whose it is, so a reused slot starts flat. + lifts: [MAX_PANES]animation.Spring = @splat(.{}), + lift_serials: [MAX_PANES]u32 = @splat(0), animate_theme_changes: bool = false, native_images: bool = false, /// The shell can take a changed image a few rows at a time (a texture row @@ -6213,6 +6217,7 @@ pub const Pardes = struct { pub fn nextWake(p: *const Pardes) ?u64 { const next = p.stepped_ns + animation.frame_ns; if (p.chrome_animation.isActive() or p.presentation.animating()) return next; + for (p.lifts) |spring| if (!spring.settled) return next; var frames: ?u64 = null; if (p.look_hover_wait) |waiting| { const delay = config.look_preview_delay_frames orelse return next; -- cgit v1.3