chore: updated demo

Author: pemattern

Cargo.lock

@@ -23,6 +23,7 @@ ratatui = "0.29.0"
 
 [dev-dependencies]
 rand = "0.9.0"
+tui-big-text = "0.7.1"
 
 [[example]]
 name = "demo"

Cargo.toml

@@ -1,4 +1,4 @@
-![Header](https://github.com/pemattern/tui-shader/blob/main/assets/stylize-other-widget.gif)
+![Header](https://github.com/pemattern/tui-shader/blob/main/assets/demo.gif)
 
 ## What is tui-shader?
 

README.md

@@ -0,0 +1,14 @@
+Output "assets/demo.gif"
+Set Margin 0
+Set Padding 0
+Set PlaybackSpeed 1
+Set FontFamily "JetBrainsMonoNL NF"
+Set FontSize 9
+Set Width 720
+Set Height 400
+Hide
+Type "cargo run --example=demo"
+Enter
+Sleep 1s
+Show
+Sleep 12s

assets/demo.gif

@@ -1,17 +1,38 @@
+use ratatui::style::Stylize;
+
+const DARK_COLOR: ratatui::style::Color = ratatui::style::Color::Rgb(75, 71, 92);
+const LIGHT_COLOR: ratatui::style::Color = ratatui::style::Color::Rgb(215, 222, 220);
+
 fn main() {
     let mut terminal = ratatui::init();
     let mut state = tui_shader::ShaderCanvasState::new_with_options(
         "shaders/dither.wgsl",
         tui_shader::ShaderCanvasOptions {
+            style_rule: tui_shader::StyleRule::Map(|sample| {
+                if sample.r() > 127 {
+                    ratatui::style::Style::new().fg(DARK_COLOR).bg(LIGHT_COLOR)
+                } else {
+                    ratatui::style::Style::new().fg(LIGHT_COLOR).bg(DARK_COLOR)
+                }
+            }),
             ..Default::default()
         },
     );
 
     let start_time = std::time::Instant::now();
+    // run at 128x32 cells
     while start_time.elapsed().as_secs() < 20 {
         terminal
             .draw(|frame| {
                 frame.render_stateful_widget(tui_shader::ShaderCanvas, frame.area(), &mut state);
+                frame.render_widget(
+                    tui_big_text::BigText::builder()
+                        .pixel_size(tui_big_text::PixelSize::Full)
+                        .lines(vec!["tui-shader".into()])
+                        .centered()
+                        .build(),
+                    frame.area().inner(ratatui::layout::Margin::new(4, 12)),
+                );
             })
             .unwrap();
         std::thread::sleep(std::time::Duration::from_millis(20));

examples/demo/demo.tape

@@ -123,7 +123,7 @@ const BAYER_8X8: array<array<f32, 8>, 8> = array(
     array(0.984375, 0.484375, 0.953125, 0.453125, 0.828125, 0.328125, 0.859375, 0.359375),
 );
 
-const margin: f32 = 0.2;
+const margin: f32 = 0.15;
 const dark_color = vec4<f32>(0.294, 0.278, 0.361, 1.0);
 const light_color = vec4<f32>(0.843, 0.871, 0.863, 1.0);