cleanup and refactoring

raytracer/nvpro_core/nvvkhl/gltf_scene.cpp

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-FileCopyrightText: Copyright (c) 2014-2022 NVIDIA CORPORATION
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "gltf_scene.hpp"
+
+#include <filesystem>
+#include "nvh/timesampler.hpp"
+
+
+void nvvkhl::Scene::load(const std::string& filename, nvh::GltfAttributes requested, nvh::GltfAttributes forced)
+{
+  nvh::ScopedTimer st(std::string(__FUNCTION__) + "\n");
+  LOGI("%s%s\n", nvh::ScopedTimer::indent().c_str(), filename.c_str());
+
+  m_scene    = {};
+  m_model    = {};
+  m_filename = filename;
+
+  nvh::Stopwatch sw;
+
+  tinygltf::TinyGLTF tcontext;
+  std::string        warn;
+  std::string        error;
+
+  auto ext = std::filesystem::path(filename).extension().string();
+  bool result{false};
+  if(ext == ".gltf")
+  {
+    result = tcontext.LoadASCIIFromFile(&m_model, &error, &warn, filename);
+  }
+  else if(ext == ".glb")
+  {
+    result = tcontext.LoadBinaryFromFile(&m_model, &error, &warn, filename);
+  }
+
+  if(!result)
+  {
+    LOGW("%s%s\n", st.indent().c_str(), warn.c_str());
+    LOGE("%s%s\n", st.indent().c_str(), error.c_str());
+    assert(!"Error while loading scene");
+  }
+
+  m_scene.importMaterials(m_model);
+  m_scene.importDrawableNodes(m_model, requested, forced);
+}
+
+void nvvkhl::Scene::destroy()
+{
+  m_scene    = {};
+  m_model    = {};
+  m_filename = {};
+}