O

Object (OBJ) mode 
Objects
    viewing animation 
    translating 
    moving 
    dynamics simulation 
    scaling 
    keyframes 
    rotating 
    previewing 
    transformation in a hierarchy 
    surface polygons 
    edges 
    modifying 
    plotting
        shape 
        trajectory 
    translation timing 
    linking to trajectory 
    linking to path 
    creating
        from skinned curves 
        by revolution 
        by extrusion  
        by extrusion 
        hierarchies 
    selecting 
        single 
        shapes 
        multiple 
    associating
        3D texture to 
        material to 
        light to 
    adding text notes 
    setting up for mental ray [1] [2]
    matte 
    editing [1] [2]
    information 
    importing 
    null 
    grid 
    dodecahedron 
    icosahedron 
    octahedron 
    tetrahedron 
    torus 
    cone 
    cylinders 
    sphere 
    cube 
    see also Primitives 
    primitive 
    fcurves 
    resetting fcurves 
    key points 
    copying
        textures 
        material 
        fcurves 
    exporting 
    removing wave from 
    attaching wave to 
    reordering polygons 
    aligning 
    merging a group 
    mirroring 
    randomizing surface points 
    converting 
        patch 
        curves 
    bevelling 
    normals [1] [2]
    points 
    substituting geometry [1] [2]
    instantiation 
    duplicating 
        animated 
    ghosted 
    displaying
        surface 
        as bounding box 
    hiding 
    deleting [1] [2]
    deformation [1] [2]
    removing constraints 
    tangency constraints 
    constraint limits [1] [2]
    bounding planes 
    constraining
        clusters to 
        to clusters 
        scaling 
        direction 
        orientation 
        position 
    animating with
        keyframes [1] [2]
        channels [1] [2]
    framing with camera [1] [2]
    Boolean operations 
Obstacles
    displaying 
    cutting links 
    assigning 
Octahedron 
Offsetting texture maps 
Opening
    IRIX shell 
    NURBS surfaces 
    closed curves or surfaces 
Operations
    redoing 
    undoing 
    Boolean 
Optimizing
    materials [1] [2]
    number of polygons [1] [2]
Options
    setting for browsers 
    check boxes 
    radio button 
Orbiting camera [1] [2]
Orientation, constraints 
Origin, repositioning camera 
Ortho window 
    XYZ options 
Orthographic camera, see Turntable option 
Output
    Accom frames 
    Abekas frames 
    mental ray renderer 
    shaders 
    to film