[Bf-committers] Cycles movement blur

[Kel M]

Would this not require a BVH rebuild on each pass?

On Tue, Nov 15, 2011 at 4:23 PM, Raul Fernandez <farsthary84 at yahoo.es>wrote:

> Is interesting.... a full unbiased solution to motion blur can be instead
> or sampling (rendering) a point in time scene (static) to fully sample(in a
> random or pseudo random) way an interval scene (like the aperture size of
> the camera)
> though this may be more efficient in terms of  required samples it can be
> costly in terms of memory because you have to have simultaneous access to a
> range of scenes instead of one, I don't know how Cycles engine deal with
> memory and frame scenes tough ... those are my two cents ;)
>
>
>
> ________________________________
> De: Knapp <magick.crow at gmail.com>
> Para: bf-blender developers <bf-committers at blender.org>
> Enviado: martes 15 de noviembre de 2011 22:46
> Asunto: [Bf-committers] Cycles movement blur
>
> I was just thinking today that Cycles could do motion blur without
> taking a big CPU hit. I don't know much about all this so I bet my
> ideas is wrong or old but I thought I would post it just in case.
>
> When we do animation the computer calculates tweens and moves stuff
> for us. It does this once per frame. Cycles does many render cycles
> per frame. It struck me today that if at each cycle pass you move the
> object you would get a blur effect. I was also thinking that you might
> move it every 100 out of a 1000 pass to get interesting stutter
> effects. I look forward to hearing if  my idea was good or only trash.
> BTW I would love to see a pause on the main render. Cycles eat my CPU
> alive and does not let me do much in the background. A nice/slow
> button might be good too but I am sure I am not the first to say this.
>
> Thanks for all the really cool work!! I love cycles, dynamic paint,
> motion tracking and ocean sim! All the other stuff is more in the
> background but I am sure I will be loving it too once I find it!
>
> --
> Douglas E Knapp
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