Cinema 4D Render Takes Automation

All 1,988 Cinema 4D takes reached final delivery format overnight, with zero human intervention.

The system tracked every take to a rendered state across two GPUs, rendering 73,100 frames in total. It recovered from crashes and disk pressure on its own. The operator never woke up to fix anything.

Without automation, a person had to babysit the render machine all night.

The job held 1,988 distinct takes, each a unique mix of character state, animation phase, color, and frame range. Rendering them by hand meant: check what finished, restart the command-line renderer on the right take, catch crashes, and convert raw files before the disk filled. One overnight run needed constant interruptions.

One batch file launches a five-process pipeline that runs the whole render unattended.

Two render workers (one per GPU) pull their queue from a shared CSV and drive Cinema 4D's command-line renderer. A status updater scans output files every 25 seconds to track exact progress. A converter turns finished raw frames into compressed delivery files and reclaims disk. A supervisor watches all of it and restarts on failure.

Crash recovery, disk watchdog, and self-restart let the run finish without anyone present.

When a render crashes, it drops an error flag; the supervisor restarts the pipeline, and after 3 failures reboots the machine to clear GPU memory leaks. A disk-space watchdog forces emergency conversion before storage fills. The CSV is the single source of truth, so both GPUs work different rows with no locking.

Progress is measured against real output files, not process exit codes.

The status updater reconciles the CSV against frames that actually exist on disk, catching partial renders and frames that vanished after being marked done. A rolling average of real frame timings drives a live ETA. The result: a render the machine finishes itself, delivered in a 2-day build of 684 lines of Python.