Matte Assist Ml Render Failure Mocha Pro Verified
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3.1 Quick Checks
- ✅ Restart the host application and Mocha Pro.
- ✅ Reboot the workstation.
- ✅ Test on a new, short clip (e.g., 5 seconds, 1920×1080, progressive).
For Windows Users (NVIDIA/AMD)
- NVIDIA: Do NOT use Game Ready drivers. Install NVIDIA Studio Drivers (version 535 or newer). Game Ready drivers optimize for frame rate, not ML computation stability.
- AMD: Disable "Radeon Anti-Lag" and "Enhanced Sync" globally for the host application. These interrupt compute queues.
3.5 Check Disk & Permissions
- Temporary render folder must be writable:
- Windows:
%TEMP%\BorisFX - macOS:
/tmp/BorisFX
- Windows:
- Ensure at least 20 GB free space on system drive.
- Temporarily disable real‑time antivirus (e.g., Defender, CrowdStrike) – they may block
.onnxmodel execution.
3.4 Adjust Memory & Render Settings
- In Mocha Pro:
- Preferences → GPU → Disable GPU for ML (fallback to CPU – slower but stable).
- Reduce Matte Assist → Max Frame Chunk Size to 2 or 4.
- In After Effects (if host): Increase memory reserved for other apps (Edit → Preferences → Memory & Performance).
6. Licensing / Plugin Host Conflict
Some users report ML failures when Mocha Pro is run as a plugin inside After Effects 2022 or earlier, particularly with multi-frame rendering enabled. matte assist ml render failure mocha pro verified
Fix:
- Launch Mocha Pro as a standalone app (from the Start menu or Applications folder), load the same project file, and try Matte Assist there.
- In After Effects, disable Preferences → Memory & Performance → Enable Multi-Frame Rendering temporarily.
3. Step‑by‑Step Troubleshooting (for users/administrators)
Likely causes
- Insufficient or corrupted input frames — missing frames, dropped frames, or corrupted source clips break ML inference.
- Severe motion blur or low contrast — ML matte models and Mocha planar trackers both struggle when foreground/background edges lack definition.
- Incorrect timeline/format settings — mismatched frame rates, resolutions, or color profiles can cause render mismatches.
- Alpha/matte channel misconfiguration — premultiplied versus straight alpha or wrong channel routing.
- Memory/GPU resource limits — out-of-memory errors during ML inference or GPU driver/compute failures.
- Incompatible or outdated plugins — version mismatch between Matte Assist, Mocha Pro, host compositor (After Effects/Nuke), or CUDA/OpenCL drivers.
- Tracker failure (Mocha Pro verified) — planar tracking drift, incorrect layer selection, or insufficient track points causing matte misplacement.