Redo of render paths

src/Engine/Asset/MeshLoader.cpp

@@ -0,0 +1,61 @@
+#include "MeshLoader.h"
+#include "Graphics/Graphics.h"
+#include "MeshAsset.h"
+#include "Graphics/Mesh.h"
+#include <assimp/Importer.hpp>
+#include <assimp/scene.h>
+#include <assimp/postprocess.h>
+
+using namespace Seele;
+
+MeshLoader::MeshLoader(Gfx::PGraphics graphics)
+    : graphics(graphics)
+{
+}
+
+MeshLoader::~MeshLoader()
+{
+}
+
+void MeshLoader::importAsset(const std::string& path)
+{
+    futures.add(std::async(std::launch::async, &MeshLoader::import, this, path));
+}
+
+void findMeshRoots(aiNode* node, List<aiNode*>& meshNodes) 
+{
+    if(node->mNumMeshes > 0)
+    {
+        meshNodes.add(node);
+        return;
+    }
+    for(uint32 i = 0; i < node->mNumChildren; ++i)
+    {
+        findMeshRoots(node->mChildren[i], meshNodes);
+    }
+}
+
+void MeshLoader::import(const std::string& path)
+{
+    PMeshAsset asset = new MeshAsset(path);
+    asset->setStatus(Asset::Status::Loading);
+    Assimp::Importer importer;
+    const aiScene* scene = importer.ReadFile(path.c_str(),
+        aiProcess_CalcTangentSpace |
+        aiProcess_FlipUVs |
+        aiProcess_ImproveCacheLocality |
+        aiProcess_OptimizeMeshes |
+        aiProcess_GenBoundingBoxes |
+        aiProcessPreset_TargetRealtime_Fast);
+    
+    List<aiNode*> meshNodes;
+    findMeshRoots(scene->mRootNode, meshNodes);
+    for(auto meshNode : meshNodes)
+    {
+        std::cout << "Test:" << meshNode->mNumMeshes << std::endl;
+    }
+
+    PMesh mesh = new Mesh(nullptr, nullptr);
+    asset->setMesh(mesh);
+    asset->setStatus(Asset::Status::Ready);
+}