A clear path to your camera
Let’s get you connected.
Setup and connection help for OpenCam Tracker on iPhone and iPad, with Michele Virtual Production Studio in Cinema 4D R26.
Connect to Cinema 4D
- Connect the tracking device and receiver computer to a reachable local network. Grant the app’s local-network permission when prompted.
- Open Michele Virtual Production Studio → Live tracking in Cinema 4D R26. Bind or copy the camera you want to drive.
- Set Listen IPv4 to
0.0.0.0, Listen UDP port to5000, and Tracker Camera ID to1. Click Start OpenCam Tracker receiver. - In OpenCam Tracker, enter the Cinema 4D computer’s LAN IPv4 address as the destination. Match port
5000and Camera ID1, then start sending. - Look for accepted tracking packets from your device in Cinema 4D’s UDP receipt log. Hold the device still, align the tracker to the current virtual camera pose, then enable Drive camera from tracker.
Connection questions
The receiver shows zero UDP packets.
Check that OpenCam is sending to the receiving computer’s address, not the phone’s address. Match port 5000, start the receiver, and confirm local-network access. Guest Wi-Fi, client isolation, VPN routing or firewall settings can prevent the two devices from reaching each other. Only one receiver should listen on the same interface and port.
Packets arrive, but tracking stays at zero.
Read the rejection reason in the receipt log. The receiver accepts compatible 29-byte D1 camera frames. A plain-text UDP test confirms receipt but is not a valid tracking frame. A Camera ID mismatch appears separately under other IDs. Match Camera ID 1 on the sender and receiver.
What does “Tracking stale” mean?
The receiver has not received a recent valid tracking frame. Resume continuous sending in OpenCam and check the network connection. The receiver holds the last camera pose while tracking is stale. A successful UDP send on the device does not prove delivery; the receiver log confirms arrival.
Valid tracking arrives, but the camera does not move.
Confirm that the intended camera is bound and that Drive camera from tracker is enabled. Keep the Studio window open and the correct Cinema 4D document active. Align while the device is stationary before enabling drive.
Why do I have tracking but no video picture?
This Cinema 4D UDP receiver receives camera-tracking frames. Video is a separate input. Use the Studio’s Video & chroma tools to place a video file on a backdrop or footage card.
Which iPhone or iPad can I use?
Use a device supported by the OpenCam Tracker build you have installed. Sensor-based features depend on that device’s hardware and available permissions. Include your device model, system version and app version when asking about compatibility.