Automatic FG baking for rendering animation?

[Jettatore]

I may not fully understand your question here. But if I am understanding you properly, then yes, it's simple. On your FG tab in Mental Ray, where it says "Map File Settings" change "overwrite existing file" to "Only use FG points from file". Then it will never try to write an FG map, and will use the one you already have, just below that, you can choose the Map manually.

[MCook]

I may not fully understand your question here. But if I am understanding you properly, then yes, it's simple. On your FG tab in Mental Ray, where it says "Map File Settings" change "overwrite existing file" to "Only use FG points from file". Then it will never try to write an FG map, and will use the one you already have, just below that, you can choose the Map manually.

That i know.

What i meant is the actual process of having to manually re-select the fg-map and set it to use map file once it was created.

If you have multiple passes or scenes this is kinda annoying task.

Why can't it just itself create the fg-map and then once finished it would utilize that map to render the animations?

[calmasacow]

there are 2 way to achieve what you are asking.

1 if you are rendering on a single machine. then get you pass all setup the way that you want it. then duplicate it. on the new "duplicate" pass set the FG map to only use points from file.

then go to the original version of the pass and then se the render type to calculate FG only.

This way the first pass writes out the map without rendering it and the second pass renders is.

2. you are rendering on a farm. you have to break the above method in to 2 separate jobs.

First job bakes the maps then second job renders the images using them.

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