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Zachary Mineo avatar image
Zachary Mineo asked

Arnold Checkpointing support

https://rmanwiki.pixar.com/display/REN/Checkpointing+and+Recovery

"Checkpoints are snapshots that save the state of the image as the renderer works on it. While view-able as ordinary images, these are also slightly larger than usual because they embed extra state that the renderer needs in order to recover the render. If the render is interrupted or fails for some reason, the renderer can resume the render from the last checkpoint image. If instead, the render finishes then the extra state will be removed when writing the final version of the image."

I know that Arnold currently doesn't support it, but is this something that could be added as a feature?


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Stephen Blair answered

Arnold does support check pointing. It's called append mode.

https://docs.arnoldrenderer.com/display/A5AFMUG/EXR#EXR-Append

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So this is how im understanding this. I have 100 frames that take an hour per frame (assuming 1 machine rendering). I want a "checkpointed" render of all of those frames by the next morning, so I can somewhere define the desired amount of time per frame(ie. 5mins) that it will work on that frame for until it moves to the next frame. After it is done checkpointing all 100 frames it will then resume rendering from the beginning, picking up at the 5 min checkpoint render progress.


Is that how this works?

screenshot-2021-06-20-010517.png

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