From 0a2694e935fa8a79f1a399f2d2cbc643f8c3734e Mon Sep 17 00:00:00 2001 From: Gabriel Schneider Date: Tue, 29 Sep 2026 08:28:40 -0300 Subject: G13: Parallax, lapis's dots drift with the text at a quarter of its speed Parallax on|off (off, a pixel shell's; Chrome.fx bit 3). A body region carries its first line (Region.line, a file's scroll or a terminal's grid offset; the wire's region record grows a u32). The GUI offsets each body's page dots by a quarter of its line in rows, and of G6's glide offset while one runs, so the pattern drifts with the text and settles with it; the cell shader reads it from the instance's serial slot, whose per-cell dissolve noise G7 left unused (the dead noise code goes). Tests: a scrolled body tells its line; the shift handed to the shader is a quarter of it within the dots' period. Measured in a capture: four lines move the dots 13 px (140 px / 4 mod 22). Gates as before, goldens byte-identical. Feel review: .scratch/render/parallax/. --- src/config.zig | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'src/config.zig') diff --git a/src/config.zig b/src/config.zig index 22e65c46..d11cbe76 100644 --- a/src/config.zig +++ b/src/config.zig @@ -125,6 +125,7 @@ pub const leader_path = paths: { if (builtins.capabilities.lift) table.set(.SelectionGlow, null); if (builtins.capabilities.lift) table.set(.HoverGlow, null); if (builtins.capabilities.lift) table.set(.Occlusion, null); + if (builtins.capabilities.lift) table.set(.Parallax, null); if (builtins.capabilities.lift) table.set(.Lift, null); table.set(.Motion, null); table.set(.InactiveDim, null); @@ -678,6 +679,9 @@ pub const Runtime = struct { /// G12: pane bodies darken faintly toward their edges (ambient /// occlusion, at most 2%), a pixel shell's. occlusion: bool = false, + /// G13: a theme's page pattern under the bodies (lapis's dots) moves + /// with the text at a quarter of its speed, a pixel shell's. + parallax: bool = false, /// How long a message stays after the key or click that dismisses it. message_linger_ms: u16 = 800, /// How long its fall into the row takes, easing out (ยง8.1: arriving, @@ -901,7 +905,7 @@ pub const Runtime = struct { /// The message timings a setting word sets, each in milliseconds. pub const MessageTime = enum { linger, fall, dissolve }; - pub const Toggle = enum { colors, wrap, tree_context_tag_style, tag_bottom, debug, focus_tint, syntax_bold, verbose, message_animation, ligatures, cursor_blink, selection_glow, hover_glow, occlusion }; + pub const Toggle = enum { colors, wrap, tree_context_tag_style, tag_bottom, debug, focus_tint, syntax_bold, verbose, message_animation, ligatures, cursor_blink, selection_glow, hover_glow, occlusion, parallax }; /// A bundled post pass, a Shadertoy file in shaders/post/: the CRT, and /// G4's bloom, vignette and grain (docs/effects.md). pub const Scene = enum { crt, bloom, vignette, grain }; @@ -963,6 +967,7 @@ pub const Runtime = struct { .{ .word = "SelectionGlow", .action = .{ .toggle = .selection_glow }, .availability = .lift, .doc = "A soft halo of the selection's colour round it in the body, on or off." }, .{ .word = "HoverGlow", .action = .{ .toggle = .hover_glow }, .availability = .lift, .doc = "A soft underline of light under the word a look-hover would open, on or off." }, .{ .word = "Occlusion", .action = .{ .toggle = .occlusion }, .availability = .lift, .doc = "Pane bodies darken faintly toward their edges, on or off." }, + .{ .word = "Parallax", .action = .{ .toggle = .parallax }, .availability = .lift, .doc = "A theme's page pattern moves with the text at a quarter of its speed, on or off." }, .{ .word = "Lift", .action = .lift, .availability = .lift, .doc = "How the focused pane stands off the page: off, shadow, rim or auto." }, .{ .word = "Motion", .action = .motion, .doc = "How animations move: off, crisp, smooth, bouncy or playful." }, .{ .word = "InactiveDim", .action = .inactive_dim, .doc = "Fade the unfocused panes' text by a percentage, 0 through 100, 0 off." }, @@ -1039,9 +1044,9 @@ pub const Runtime = struct { .toggle => |field| if (field == .ligatures) { if (setting.availability != .ligatures) @compileError("the ligatures toggle must use the ligatures capability"); - } else if (field == .cursor_blink or field == .selection_glow or field == .hover_glow or field == .occlusion) { + } else if (field == .cursor_blink or field == .selection_glow or field == .hover_glow or field == .occlusion or field == .parallax) { if (setting.availability != .lift) - @compileError("CursorBlink, SelectionGlow, HoverGlow and Occlusion must use the lift capability (a pixel shell's)"); + @compileError("CursorBlink, SelectionGlow, HoverGlow, Occlusion and Parallax must use the lift capability (a pixel shell's)"); } else if (setting.availability != null) @compileError("unconditional toggles cannot carry a backend capability"), else => if (setting.availability != null) @@ -1699,6 +1704,7 @@ pub const Runtime = struct { .selection_glow => "SelectionGlow on\n", .hover_glow => "HoverGlow on\n", .occlusion => "Occlusion on\n", + .parallax => "Parallax on\n", }, .shell => "Shell requested (new panes) fish\n", .tagline_size => "TaglineSize 73\n", -- cgit v1.3