From cc53d411ef38331356f7c179d192cebecbcd4fcb Mon Sep 17 00:00:00 2001
From: Alexandre <mateialex@outlook.fr>
Date: Tue, 1 Sep 2026 19:04:20 +0200
Subject: [PATCH] Added a flake

---
 flake.nix                  | 82 ++++++++++++++++++++++++++++++++++++++
 src/Engine/engine/loader.h | 30 ++++++++++++++
 2 files changed, 112 insertions(+)
 create mode 100644 flake.nix

diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..99d0f30
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,82 @@
+{
+  description = "General Vulkan dev environment";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          config.allowUnfree = true;
+        };
+      in {
+        devShells.default = pkgs.mkShell {
+          name = "vulkan";
+          hardeningDisable = [ "fortify" ];
+
+          packages = with pkgs; [
+            # Shader compile
+            shader-slang
+            glslang
+            # Vulkan
+            vulkan-headers
+            vulkan-loader
+            vulkan-validation-layers
+            vulkan-tools
+            vulkan-utility-libraries
+            vk-bootstrap
+            vulkan-memory-allocator
+            vulkan-volk
+            # Wayland
+            wayland
+            wayland-protocols
+            wayland-scanner
+            libxkbcommon
+            # Miniaudio
+            libpulseaudio
+            libpulseaudio.dev
+            # Other libraries
+            glfw3
+            SDL2
+            sdl3
+            fmt
+            imgui
+            tinyobjloader
+            nlohmann_json
+            tinygltf
+#            fastgltf
+            stb
+            ktx-tools
+            glm
+            cmake
+            ninja
+            pkg-config
+            # Debug
+            gdb
+            renderdoc
+#            git
+          ];
+          # Environment Variables
+          LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath [
+            pkgs.vulkan-loader
+            pkgs.shaderc.lib
+            pkgs.SDL2
+            pkgs.vk-bootstrap
+            #pkgs.sdl3
+          ];
+          VK_LAYER_PATH = "${pkgs.vulkan-validation-layers}/share/vulkan/explicit_layer.d";
+          VULKAN_SDK = "${pkgs.vulkan-validation-layers}/share/vulkan/explicit_layer.d";
+          GIT="${pkgs.git}";
+
+          shellHook = ''
+            echo "Vulkan loaded"
+            unset SOURCE_DATE_EPOCH
+            echo $LD_LIBRARY_PATH
+          '';
+        };
+      });
+}
diff --git a/src/Engine/engine/loader.h b/src/Engine/engine/loader.h
index 9060fe1..c354929 100644
--- a/src/Engine/engine/loader.h
+++ b/src/Engine/engine/loader.h
@@ -74,6 +74,36 @@ std::optional<std::vector<std::shared_ptr<MeshAsset>>> loadGltfMeshes(
   std::vector<Vertex>   vertices;
 
   // Now, some gltf gymnastics to get data into the correct buffers.
+  /*
+  ====================================
+  The following comments are notes,
+  to help me build the loader,
+  based on the new fastgltf api
+  (the vkguide is using an older api)
+  ====================================
+  By reading the vkguide, I can see that
+  he's iterating on "gltf" which is an Asset.
+  In the official docs, it is stated we can get direct
+  references to the Asset class, using pointers (->)
+  For exemple with buffers: asset->buffers
+
+  But the guide is using asset.meshes ?
+  We'll need to validate if it's a real class member
+
+  Then, foreach meshes in the file, he creates a temporary mesh,
+  that he will fill with the model data.
+
+  He assign the model name from the big chunk (we'll call it the Origin)
+
+  He does some cleaning, to not merge meshes by error.
+
+  And...uh..another loop.
+
+  This time, it's using mesh.primitives, which is the iterator of the first loop.
+  It creates a new GeoSurface, foreach "primitives" ?
+
+
+  */
 
 
   // Debug things