Method getScene

Source/Falcor/Scene/SceneBuilder.cpp:326–409

    }

    ref<Scene> SceneBuilder::getScene()
    {
        if (mpScene) return mpScene;

        // Finish loading textures. This blocks until all textures are loaded and assigned.
        mpMaterialTextureLoader.reset();

        // If no meshes were added, we create a dummy mesh to keep the scene generation working.
        // Scenes with no meshes can be useful for example when using volumes in isolation.
        if (mMeshes.empty())
        {
            logWarning("Scene contains no meshes. Creating a dummy mesh.");
            // Add a dummy (degenerate) mesh.
            auto dummyMesh = TriangleMesh::createDummy();
            auto dummyMaterial = StandardMaterial::create(mpDevice, "Dummy");
            auto meshID = addTriangleMesh(dummyMesh, dummyMaterial);
            Node dummyNode = { "Dummy", float4x4::identity(), float4x4::identity() };
            NodeID nodeID = addNode(dummyNode);
            addMeshInstance(nodeID, meshID);
        }

        // Post-process the scene data.
        TimeReport timeReport;

        // Prepare displacement maps. This either removes them (if requested in build flags)
        // or makes sure that normal maps are removed if displacement is in use.
        prepareDisplacementMaps();

        prepareSceneGraph();
        prepareMeshes();
        removeUnusedMeshes();
        flattenStaticMeshInstances();
        pretransformStaticMeshes();
        unifyTriangleWinding();
        optimizeSceneGraph();
        calculateMeshBoundingBoxes();
        createMeshGroups();
        optimizeGeometry();
        sortMeshes();
        createGlobalBuffers();
        createCurveGlobalBuffers();
        collectVolumeGrids();
        removeDuplicateSDFGrids();

        timeReport.measure("Post processing geometry");

        optimizeMaterials();
        removeDuplicateMaterials();
        quantizeTexCoords();

        timeReport.measure("Optimizing materials");

        // Prepare scene resources.
        createSceneGraph();
        createMeshData();
        createMeshBoundingBoxes();
        createCurveData();
        calculateCurveBoundingBoxes();