re-org en App

lib/src/resources/mod.rs

@@ -0,0 +1,20 @@
+//! # Resources Module — Data Types
+//!
+//! Defines the three core data types that flow through the rendering pipeline: **Vertex** (CPU-side per-attribute
+//! tuple), **Mesh** (GPU geometry container with vertex/index buffers), and **Material** (appearance descriptor
+//! pairing shader ID with a compiled RenderPipeline). These are immutable after creation and consumed by Renderer
+//! for draw calls.
+//!
+//! ## Interaction with Other Modules
+//! - `pipeline_cache::build_pipeline()` reads Vertex field offsets to construct the vertex buffer layout.
+//! - `mesh::new()` uploads Vertex arrays from CPU memory into GPU vertex buffers via DeviceExt::create_buffer_init().
+//! - `material::new()` requests RenderPipelines from PipelineCache during scene initialization.
+
+pub mod material;
+pub mod mesh;
+pub mod vertex;
+
+// Re-exports
+pub use material::Material;
+pub use mesh::Mesh;
+pub use vertex::Vertex;