remove autoload

assets/shaders/default.wgsl

@@ -5,9 +5,14 @@
 
 @fragment
 fn fragment(mesh: VertexOutput) -> @location(0) vec4<f32> {
-    let bottom = vec3<f32>(1.0, 0.8, 0.2); // warm
+    var uv = mesh.uv * 2 - 1;
-    let top    = vec3<f32>(0.2, 0.6, 1.0); // cool
+    uv.x = uv.x * (u_resolution.x / u_resolution.y);
 
-    let color = mix(bottom, top, mesh.uv.y);
+    let red = vec3<f32>(1, 0, 0);
-    return vec4<f32>(color, 1.0);
+    let blue = vec3<f32>(0, 0, 1.0);
+
+    let t = step(0.5, length(uv));
+
+    let color = mix(red, blue, t);
+    return vec4<f32>(color, 1);
 }

src/main.rs

@@ -17,7 +17,6 @@ fn main() {
             Update,
             (
                 material::update_material_time,
-                material::shader_hot_reload,
                 systems::resize_fullscreen_quad,
                 systems::exit_app.run_if(input_just_pressed(KeyCode::Escape)),
                 systems::toggle_fullscreen.run_if(input_just_pressed(KeyCode::F11)),

src/material.rs

@@ -1,8 +1,7 @@
 use bevy::{
-    asset::AssetEvent,
     prelude::*,
     reflect::TypePath,
-    render::render_resource::{AsBindGroup, Shader, ShaderRef},
+    render::render_resource::{AsBindGroup, ShaderRef},
     sprite::{AlphaMode2d, Material2d},
 };
 
@@ -24,31 +23,6 @@ pub fn update_material_time(mut materials: ResMut<Assets<CustomMaterial>>, time:
     }
 }
 
-/// Listen for shader asset changes and force materials to update so the new shader is used.
-pub fn shader_hot_reload(
-    mut shader_events: EventReader<AssetEvent<Shader>>,
-    mut materials: ResMut<Assets<CustomMaterial>>,
-) {
-    let mut reload_needed = false;
-    for event in shader_events.read() {
-        match event {
-            AssetEvent::Modified { .. } => {
-                reload_needed = true;
-            }
-            _ => {}
-        }
-    }
-
-    if reload_needed {
-        // iterate all materials and 'touch' them so Bevy updates bindings using the recompiled shader
-        for (_handle, material) in materials.iter_mut() {
-            // assign to itself to mark changed
-            let cloned = material.clone();
-            *material = cloned;
-        }
-    }
-}
-
 impl Material2d for CustomMaterial {
     fn fragment_shader() -> ShaderRef {
         DEFAULT_SHADER_PATH.into()