vertex +normals

examples/main.rs

@@ -2,16 +2,75 @@ use std::sync::Arc;
 use winit::event_loop::EventLoop;
 use winit::window::WindowBuilder;
 use wsg_lib::context::Context;
+use wsg_lib::material::Material;
+use wsg_lib::mesh::Mesh;
+use wsg_lib::pipeline_cache::PipelineCache;
+use wsg_lib::renderer::Renderer;
 
 fn main() {
     let event_loop = EventLoop::new().unwrap();
     let window = Arc::new(WindowBuilder::new().build(&event_loop).unwrap());
 
-    // Utilisation de pollster pour le bloc async
+    // Initialisation contexte matériel (device, queue, surface) Utilisation de pollster pour le bloc async
     let context = pollster::block_on(Context::new(window.clone()));
 
-    match context {
-        Ok(_) => println!("Succès : WGPU context initialisé !"),
-        Err(e) => eprintln!("Erreur lors de l'initialisation : {:?}", e),
-    }
+    // Initialisation des briques de rendu
+    let mut cache = PipelineCache::new();
+    cache
+        .register_shader("basic", "assets/shaders/basic.wgsl")
+        .unwrap();
+    let renderer = Renderer::new(&context, &cache);
+
+    // Creation d'un material (charge le basic shader via le cache)
+    let material = Material::new(&context.device, context.config.format, "basic", &mut cache);
+    // Creation d'un mesh
+    // 1. Définition des sommets (avec position et couleur pour l'interpolation)
+    let vertices = [
+        Vertex {
+            position: [-0.5, 0.5, 0.0],
+            color: [1.0, 0.0, 0.0],
+        }, // Haut-Gauche (Rouge)
+        Vertex {
+            position: [0.5, 0.5, 0.0],
+            color: [0.0, 1.0, 0.0],
+        }, // Haut-Droite (Vert)
+        Vertex {
+            position: [0.5, -0.5, 0.0],
+            color: [0.0, 0.0, 1.0],
+        }, // Bas-Droite (Bleu)
+        Vertex {
+            position: [-0.5, -0.5, 0.0],
+            color: [1.0, 1.0, 1.0],
+        }, // Bas-Gauche (Blanc)
+    ];
+    let indices: [u16; 6] = [0, 1, 2, 0, 2, 3];
+    let mesh = Mesh::new(&context.device, &vertices, Some(&indices));
+
+    // Render loop
+    event_loop
+        .run(|event, elwt| {
+            match event {
+                winit::event::Event::AboutToWait => {
+                    window.request_redraw();
+                }
+                winit::event::Event::WindowEvent {
+                    event: winit::event::WindowEvent::RedrawRequested,
+                    ..
+                } => {
+                    // Acquisition de la cible de rendu
+                    let frame = context.surface.get_current_texture().unwrap();
+                    let view = frame
+                        .texture
+                        .create_view(&wgpu::TextureViewDescriptor::default());
+
+                    // Orchestration du rendu
+                    renderer.render(&context.device, &context.queue, &view, &mesh, &material);
+
+                    // Presentation de l'image
+                    frame.present();
+                }
+                _ => (),
+            }
+        })
+        .unwrap();
 }

lib/pipeline_cache.rs

@@ -24,6 +24,7 @@ use std::sync::Arc;
 pub struct PipelineCache {
     /// Cached pipelines keyed by their shader identifier string.
     pipelines: HashMap<String, Arc<wgpu::RenderPipeline>>,
+    shader_paths: HashMap<String, String>,
 }
 
 impl PipelineCache {
@@ -31,8 +32,31 @@ impl PipelineCache {
     pub fn new() -> Self {
         Self {
             pipelines: HashMap::new(),
+            shader_paths: HashMap::new(),
         }
     }
+    /// Enregistre un chemin de shader associé à un ID.
+    /// Renvoie Ok(id) si réussi, ou une erreur si l'ID existe déjà.
+    pub fn register_shader(&mut self, id: &str, path: &str) -> Result<String, String> {
+        if self.shader_paths.contains_key(id) {
+            return Err(format!("ID '{}' already exists.", id));
+        }
+        self.shader_paths.insert(id.to_string(), path.to_string());
+        Ok(id.to_string())
+    }
+
+    /// Supprime un ID et son chemin associé.
+    /// Renvoie Ok(id) si réussi, ou une erreur si l'ID est inconnu.
+    pub fn unregister_shader(&mut self, id: &str) -> Result<String, String> {
+        if self.shader_paths.remove(id).is_none() {
+            return Err(format!("ID '{}' does not exist.", id));
+        }
+        // Optionnel : tu pourrais aussi supprimer le pipeline compilé du cache
+        // si tu veux libérer la mémoire GPU immédiatement :
+        self.pipelines.remove(id);
+
+        Ok(id.to_string())
+    }
 
     /// Retrieves a cached RenderPipeline by shader_id, or creates one on-demand if not present.
     /// Inputs: device (GPU command source), format (surface texture format for fragment output),
@@ -50,8 +74,12 @@ impl PipelineCache {
         }
 
         // Step 2: Compile a new pipeline — loads shader and builds the GPU render pipeline
-        // Note: In production you would load shaders specific to shader_id from files or embedded resources.
-        let shader = self.load_shader(device, shader_id);
+        let path = self
+            .shader_paths
+            .get(shader_id)
+            .map(|s| s.as_str())
+            .unwrap_or(shader_id);
+        let shader = self.load_shader(device, path);
         let pipeline = Self::build_pipeline(device, format, &shader);
 
         // Step 3: Cache the new pipeline behind Arc and return it
@@ -97,11 +125,16 @@ impl PipelineCache {
                 wgpu::VertexAttribute {
                     offset: 12,
                     shader_location: 1,
+                    format: wgpu::VertexFormat::Float32x3,
+                }, // normal
+                wgpu::VertexAttribute {
+                    offset: 24,
+                    shader_location: 2,
                     format: wgpu::VertexFormat::Float32x2,
                 }, // uv
                 wgpu::VertexAttribute {
-                    offset: 20,
-                    shader_location: 2,
+                    offset: 32,
+                    shader_location: 3,
                     format: wgpu::VertexFormat::Float32x4,
                 }, // color
             ],

lib/vertex.rs

@@ -8,15 +8,19 @@
 //! - `#[repr(C)]` ensures fields are laid out contiguously without Rust padding reordering, matching C ABI.
 //! - `bytemuck::Pod + bytemuck::Zeroable` enables safe `cast_slice()` conversion for GPU buffer uploads.
 
-/// Per-vertex attribute tuple: position (3D), texture coordinate (2D), color (RGBA).
+/// Per-vertex attribute tuple: position (3D), normal (3D), texture coordinate (2D), color (RGBA).
 /// Must match the vertex buffer layout in PipelineCache::build_pipeline() byte-for-byte.
 #[repr(C)]
 #[derive(Copy, Clone, Debug, bytemuck::Pod, bytemuck::Zeroable)]
 pub struct Vertex {
     /// XYZ coordinates of this vertex in world space. Offset: 0 bytes.
     pub position: [f32; 3],
-    /// UV texture coordinates. Offset: 12 bytes (after 3 × f32 = 12 bytes).
+    /// XYZ coordinates of the vertex normal. Offset: 12 bytes.
+    pub normal: [f32; 3],
+    /// UV texture coordinates. Offset: 24 bytes
     pub uv: [f32; 2],
-    /// RGBA color values. Offset: 20 bytes (after 5 × f32 = 20 bytes).
+    /// RGBA color values. Offset: 32 bytes.
     pub color: [f32; 4],
 }
+
+// Default values for stability