The render-frame (Y-up) translation that turns a mesh produced against fromOffset (IFC Z-up; absent means the raw frame) into one produced against toOffset. Render-frame coordinates are world - offset, so the mesh moves by -delta.
fromOffset
toOffset
world - offset
-delta
The render-frame (Y-up) translation that turns a mesh produced against
fromOffset(IFC Z-up; absent means the raw frame) into one produced againsttoOffset. Render-frame coordinates areworld - offset, so the mesh moves by-delta.