, which has been around since at least 2014. The "3D" and "Fixed" tags usually indicate: 3D Content Optimization : Files specifically encoded in Side-by-Side (SBS) Over-Under (OU) formats designed for 3D TVs and VR headsets. "Fixed" Links
If this is a specific fix or "mod" for a 3D application or game, please provide the name of the software (e.g., a Unity project, a specific game engine, or a 3D modeling tool like Website/Content Management: worldfree4u3d fixed