3D Viewers 3DM 3DS 3MF AMF COPC DAE DST EPT FBX GCode GLTF GLTFS GM IFC JSON LAS LDraw MMD OBJ PCD PDB PLY PRWM Splat STEP+ STL SVG USDZ VRML VTK XYZ Assimp A-Frame AR-VR Quick Viewer JSON Legacy WebGPU: GLTF OBJ PDB