[Bf-compositor] Feature suggestion for CHROMATIC ABBRATION

[Jeroen Bakker]

Hi Milin,

Does not really sound like a compositor question, but still it is a very 
interesting research question. The distortion node is not an accurate 
dispersion algorithm. It uses screen space calculation for the chromatic 
abbration. I assume you will need an accurate model of your camera setup 
in order to remove the chromatic abbration.
Have you tried using the motion trackers lens distortion (k1, k2, k3) 
per channel. I assume (not knowing for certain) that that setup is more 
likely to work as the algorithm is more correct (but still not accurate).

Otherwise it should help if you can distribute some examples and let see 
how users will solve it.

Regards,
Jeroen
  - At Mind -

On 11/29/2014 12:17 PM, Milin Patel wrote:
> Hi, my name is Milin
> I use blender for many versatile works,
> recently i made VR HMD (Virtual reality stuff) and i used convex lense 
> and i got Chromatic abbration , i thought i could fix it using 
> negative value of "Dispersion" in lense distortion node.
> But i found that there is no negative values allowed to enter in 
> Dispersion.
> so my request is that can you make it to allow to add Negative values 
> in that Dispersion value ?
> Looking forward to your positive reply.
>
>
>
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