Physically Accurate Bokeh #41553

New Issue

Chris Cook · 2014-08-24T09:44:30+02:00

Chris Cook commented

2014-08-24 09:44:30 +02:00

As of yet no physically based renderer that I am aware of can render bokeh how it should actually look. This proposal came about after seeing the anamorphic bokeh recently added. I’m not sure whether or not this is proposal is possible with the current cycles engine, but if so it would hugely improve the results of renders.
The following images (as shown) show when an object is placed on the focal plane, behind the focal plane, and in front of the focal plane.
Correct Focus
Object Too Close
Object Too Far

The first example can be recreated in blender cycles quite well. The other two cannot.
In Focus
Out Of Focus
Out Of Focus With Obstruction

As seen in the diagrams, the obstruction of one object in front of another affects the shape of the bokeh, which is what gives rise to shaped bokeh in a lens; though the object doesn’t have to be within the lens to cause this effect.
If this is not a suitable place to recommend this feature, could someone let me know where a better place to go would be?

Thanks,

Chris Cook.

As of yet no physically based renderer that I am aware of can render bokeh how it should actually look. This proposal came about after seeing the anamorphic bokeh recently added. I’m not sure whether or not this is proposal is possible with the current cycles engine, but if so it would hugely improve the results of renders. The following images (as shown) show when an object is placed on the focal plane, behind the focal plane, and in front of the focal plane. [Correct Focus ](http://alphaluma.com.au/wp-content/uploads/2014/08/CorrectFocus.jpg) [Object Too Close ](http://alphaluma.com.au/wp-content/uploads/2014/08/TooClose.jpg) [Object Too Far](http://alphaluma.com.au/wp-content/uploads/2014/08/TooFar.jpg) The first example can be recreated in blender cycles quite well. The other two cannot. [In Focus ](http://alphaluma.com.au/wp-content/uploads/2014/08/InFocus.jpg) [Out Of Focus ](http://alphaluma.com.au/wp-content/uploads/2014/08/OutOfFocus.jpg) [Out Of Focus With Obstruction ](http://alphaluma.com.au/wp-content/uploads/2014/08/OutOfFocusWithObstruction.jpg) As seen in the diagrams, the obstruction of one object in front of another affects the shape of the bokeh, which is what gives rise to shaped bokeh in a lens; though the object doesn’t have to be within the lens to cause this effect. If this is not a suitable place to recommend this feature, could someone let me know where a better place to go would be? Thanks, Chris Cook.

Chris Cook commented

2014-08-24 09:44:30 +02:00

Changed status to: 'Open'

Chris Cook commented

2014-08-24 09:44:30 +02:00

Added subscriber: @smilebags

Bastien Montagne commented

2014-08-24 14:27:59 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2014-08-24 14:27:59 +02:00

Bastien Montagne self-assigned this 2014-08-24 14:27:59 +02:00

Bastien Montagne commented

2014-08-24 14:27:59 +02:00

Please do not open design/todo tasks if you are not a developer that intends to work on it yourself. Once again, our tracker is not a place for feature requests (you can use forums or bf-funboard ML for that).

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Physically Accurate Bokeh #41553