This issue I get [Camera Focus]

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DannyRyu
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Message 13364 - Posted: 6 Nov 2014, 6:20:19 UTC

Camera depends on Focus through Camera DoF.
So I'm using DoF settings in Cycles.
But this Animation I'm working on wont render fast on my PC(By that I mean I got 40 frames in 2 days), so how can i get around this with keeping DoF?
Thanks!
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Message 13367 - Posted: 6 Nov 2014, 19:17:48 UTC - in response to Message 13364.  
Last modified: 6 Nov 2014, 19:27:25 UTC

Typically what causes a cyclic dependency in Blender is that you made the location of B depend on A but the location of A already depended on B through some other means. In this way Blender has no way of knowing where either A or B actually is in the scene, only that they are positioned relative to each other somehow.

I don't know what your specific issue looks like, but normally one would make a hidden object in the scene (positioned relative to the scene, not the camera) and use that as the DoF focus. That way, when you move the camera, the focus stays on the same spot. Alternatively you can animate the camera DoF value directly if it has no focus object.

[Edit:] Changed the title of the thread slightly to be more on topic
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Message 13370 - Posted: 7 Nov 2014, 7:23:11 UTC - in response to Message 13367.  

Thanks,Im using an Empty as a focus for my camera.
Than the focused empty if parented to the camera so the focus moves with the camera
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Message boards : Problems and Help : This issue I get [Camera Focus]