yuemoon99/blenderbatchrenderer

BlenderBatchRenderer is a Windows-only desktop tool for managing long Blender render jobs without babysitting them. Built with Python and PyQt6, it adds a queue manager on top of Blender's command-line rendering so you can line up multiple projects and walk away. The queue accepts Blender project files by drag-and-drop. When you add a file, the tool reads the project in the background and pulls out the scene parameters automatically: camera, resolution, output folder, start and end frames. From there you can duplicate tasks quickly if you need to render the same scene from multiple cameras or angles. Resource management is a key feature. You can cap how much CPU the render process uses, choosing 25, 50, 75, or 100 percent, so the computer remains usable for other work during a long render. For projects with heavy physics simulations or complex materials that tend to develop memory leaks over time, the tool has a per-frame independent process mode: it kills and restarts Blender after each frame completes, which prevents the slowdown that normally builds up across hundreds of frames. Progress tracking parses Blender's internal logs and shows status down to the tile and sample level within each frame. If a render session is interrupted by a crash or power loss, a scan-and-fill feature checks the output folder and automatically queues only the missing frames, so you do not need to re-render from the start. Once the full queue finishes, the tool can automatically shut down, restart, or put the computer to sleep, useful when leaving a render running overnight. The tool is Windows-only because it relies on Windows-specific system APIs. It requires Python 3.8 or later and an existing Blender installation. The project is MIT licensed.