AssimpThe official Open-Asset-Importer-Library Repository. Loads 40+ 3D-file-formats into one unified and clean data structure.
MeshIOCloudCompare plugin for loading COLLADA, glTF, and IFC-SPF 3D models
COLLADAViewer2An OBSOLETE instructional OS X application to load/display COLLADA Models and export to compact binary representations.
importer-exporter3D City Database client for high-performance import and export of 3D city model data
android-3d-model-viewerAndroid app to load 3D models in obj, stl, dae & gltf format using pure OpenGL ES 2.0. Published on Play Store https://play.google.com/store/apps/details?id=org.andresoviedo.dddmodel2
Exploring-SceneKit👾 An app created to explorer the features of SceneKit iOS framework. Assets load (Model I/O), interaction, animation, classical rendering (Blinn-Phong), physically based rendering.