To get a good MP4, your model needs to actually do something on screen.
Usually a 3D asset, a specialized animation file, or an AI-generated scene.
You likely used an unsupported codec like H.265 or ProRes inside an MP4 container. Go back and ensure your video codec is strictly set to H.264 .
If your model is in a standard 3D format (like .OBJ, .FBX, or .GLTF), importing it into a dedicated suite is best. Free, open-source, and incredibly powerful. Cinema 4D: Great for motion graphics.
What is your (e.g., 1080p, 4K, or vertical for mobile)? Something went wrong and an AI response wasn't generated.
Set Video Encoder to (or hardware encoders like NVIDIA NVENC if available). Step 4: Rendering and Exporting