Hi Ari - 

Bokeh can use the Z depth channel, or any other channel you choose that 
contains Z values ( well, any values but Z seems to make the most sense ) to 
control the size of the COC.  So I'm not too sure if what you're asking is 
different?  If you want normalized values ( 0 - 1 ) it's advised to scale the 
values prior to feeding them into Bokeh as any sort of lens simulation needs to 
know the scale of the world and 0 to 1 is arbitrary  ( what does a depth of 0.5 
mean to a 35mm lens? ).  You can of course use a 0-1 range when not using the 
lens simulation mode too and just make sure you near and far distances are set 
correctly. 

So if you have particles at varying depths then you can have some in focus ( at 
the focal plane ) and some out of focus. 

I would say the best bet would be to try it out... :)

Cheers

On 2011-07-13, at 7:15 PM, ari Rubenstein wrote:

> Yes, Franks got it. 
> 
> Example:
> Nuke's 6.3 beta particles moving from foreground to midground.... and a depth 
> key's luminance (particle depth) scaling each particle's bokeh (circle of 
> confusion) from large to small as they move away from camera.
> 
> This happens on a per particle basis, not uniformly on all particles at once.
> 
> Ari 
> 
> Sent from my iPhone
> 
> On Jul 13, 2011, at 5:42 PM, Frank Rueter <fr...@beingfrank.info> wrote:
> 
>> you mean the custom convole input, right?!
>> I think Ari means a control image that scales the convolve shapes in the 
>> output image.
>> 
>> 
>> 
>> On Jul 14, 2011, at 7:08 AM, Colin Doncaster wrote:
>> 
>>> Hi Ari, 
>>> 
>>> Any input channel can be used to control the scale of the effect. 
>>> 
>>> Cheers
>>> 
>>> On 2011-07-13, at 2:35 PM, ari Rubenstein wrote:
>>> 
>>>> Colin,
>>>> 
>>>> Can you confirm if now the tool can scale the bokeh based on a greyscale 
>>>> input image (such as a depth key) ?
>>>> 
>>>> Thx,
>>>> Ari
>>>> 
>>>> Sent from my iPhone
>>>> 
>>>> On Jul 11, 2011, at 3:43 PM, Colin Doncaster <co...@peregrinevfx.com> 
>>>> wrote:
>>>> 
>>>>> I can get you a trial license of http://peregrinelabs.com/bokeh if you 
>>>>> want to give it a go.  I'm sure the tool can be extended to support what 
>>>>> you're trying to do. 
>>>>> 
>>>>> cheers
>>>>> 
>>>>> On 2011-07-11, at 12:18 PM, a...@curvstudios.com wrote:
>>>>> 
>>>>>> Anyone have a nice solution / tool for animated growing / shrinking of 
>>>>>> DOF
>>>>>> Bokeh on say, particles moving away from camera ?
>>>>>> 
>>>>>> I'm trying to create Flotsam for several underwater shots with particles.
>>>>>> I can cut the particles into different depth slices, then vary their DOF
>>>>>> bokeh, and re-combine...but its in the animation proximity to camera 
>>>>>> which
>>>>>> gets difficult to prevent the dissolve anomalie...effect.
>>>>>> 
>>>>>> Has anyone used openFX Frischluft with success in this scenario ? or does
>>>>>> it exhibit the same problem ?
>>>>>> 
>>>>>> thx,
>>>>>> Ari
>>>>>> 
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