Multiprocessing in BG Renderer Max

BG Renderer Max lets you launch multiple aerender instances simultaneously — as you could do by manually launching BG Renderer multiple times before.

The key difference now is control. You can see the actual progress for each composition, no matter how many processes run at the same time.

Multiprocessing works by rendering to a frame sequence and compiling the video file at the end.

BG Renderer Max supports rendering to .PNG, .JPG, .TIFF, .TGA, .EXR, .PSD, and .DPX image sequence formats. Note that .PSD and .DPX sequences cannot be compiled to video.

Read more about supported formats.

Enable Multiprocessing in the Render Settings

The thread counter appears near the main button. Set the number of render threads you want your machine to handle simultaneously.

IMPORTANT: Start with 2–4 threads and gradually increase depending on available RAM and the load your CPU can handle.

You can also:

• Compile sequence to video file
• Render sequences with audio
• Control the versioning behavior
• Remove sequences after the render is finished

Limitations

After Effects rendering capacity is mostly limited by your machine’s RAM. After Effects 17.5 and newer are very RAM-hungry, so the limiting factors are RAM and I/O throughput, not CPU core count. Make sure you have a fast SSD, and if possible, keep your cache and renders on separate SSDs to avoid an I/O bottleneck.

We recommend keeping the thread count to no more than half your physical cores (and no more than 8 threads regardless).

Keeping a web browser (especially Google Chrome) open during rendering can significantly increase render times due to high RAM consumption.