Method load_scene

framework/gltf_loader.cpp:497–1095

}

vkb::scene_graph::SceneC GLTFLoader::load_scene(int scene_index, VkBufferUsageFlags additional_buffer_usage_flags)
{
	PROFILE_SCOPE("Process Scene");

	auto scene = vkb::scene_graph::SceneC();

	scene.set_name("gltf_scene");

	// Check extensions
	for (auto &used_extension : model.extensionsUsed)
	{
		auto it = supported_extensions.find(used_extension);

		// Check if extension isn't supported by the GLTFLoader
		if (it == supported_extensions.end())
		{
			// If extension is required then we shouldn't allow the scene to be loaded
			if (std::ranges::find(model.extensionsRequired, used_extension) != model.extensionsRequired.end())
			{
				throw std::runtime_error("Cannot load glTF file. Contains a required unsupported extension: " + used_extension);
			}
			else
			{
				// Otherwise, if extension isn't required (but is in the file) then print a warning to the user
				LOGW("glTF file contains an unsupported extension, unexpected results may occur: {}", used_extension);
			}
		}
		else
		{
			// Extension is supported, so enable it
			LOGI("glTF file contains extension: {}", used_extension);
			it->second = true;
		}
	}

	// Load lights
	std::vector<std::unique_ptr<sg::Light>> light_components = parse_khr_lights_punctual();

	scene.set_components(std::move(light_components));

	// Load samplers
	std::vector<std::unique_ptr<vkb::scene_graph::components::SamplerC>>
	    sampler_components(model.samplers.size());

	for (size_t sampler_index = 0; sampler_index < model.samplers.size(); sampler_index++)
	{
		auto sampler                      = parse_sampler(model.samplers[sampler_index]);
		sampler_components[sampler_index] = std::move(sampler);
	}

	scene.set_components(std::move(sampler_components));

	Timer timer;
	timer.start();

	// Load images
	auto image_count = to_u32(model.images.size());