[Bf-cycles] Bucket rendering

[David]

Hi Brecht,

On BlenderArtists.com it has been mentioned that, at the conference using buckets for Cycles rendering might be considered as a way of overcoming memory limitations.

Could this function as a fail-safe, rather than a default method?
The graphic card's memory is calculated, if there will not be enough memory available to render, then (rather than the render failing) the process switches to using buckets?

Would bucket rendering on a GPU function similar to Blender's internal renderer and other bucket rendering engines, segmented render sections completed in turn, if so how do you maintain attractive real time viewport editing updates?

Thank you,

David Black
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