[Bf-committers] Cycles velocity

Sergey Sharybin sergey.vfx at gmail.com
Mon Oct 26 14:13:39 CET 2015


If it's just distinguishing whether there is motion or not then guess
object space would work. Perhaps could be something similar implementation
to the pointyness, but would nice to investigate if we can make it
something more generic.

Will check on that in the upcoming days.

On Sun, Oct 25, 2015 at 11:44 PM, David Fenner <d4vidfenner at gmail.com>
wrote:

> Hey. Nice idea to simulate stop motion. Saved in hard drive.
>
> 2015-10-22 6:41 GMT-03:00 Manuel Rais <manu at g-lul.com>:
>
> > Hi Sergey
> >
> > Thanks for your answer.
> >
> > To be more clear, we want to use this attribute to switch from a texture
> > to another when the velocity is not null.
> > The purpose is to have a stop motion rendering with displace/bump
> changing
> > only on the moving parts.
> > Of course there's many ways to achieve this but we're searching the more
> > automatic. We have others ideas of course but less funny ☺..
> >
> > All objects in this project are baked in pc2 files and are at the center
> > of the world and their scale at 1. So I guess the world space and object
> > space are the same,  but maybe I'm wrong.
> > I know a little bit of c/cpp maybe I can  produce a patch (with a little
> > help?) if it's not too hard...
> >
> > Thanks.
> >
> > Le 21 octobre 2015 23:58:56 GMT+02:00, Sergey Sharybin <
> > sergey.vfx at gmail.com> a écrit :
> > >What is the use of such attribute?
> > >
> > >Also, due to instancing it's quite tricky to represent word-space
> > >velocity
> > >in the vertex attribute, only object space velocity is possible to be
> > >stored without major PITA.
> > >
> > >On Wed, Oct 21, 2015 at 8:07 PM, Manuel Rais <manu at g-lul.com> wrote:
> > >
> > >> Hi !
> > >>
> > >> I was wondering if it's possible to have vertex velocity in the
> > >attribute
> > >> node of Cycles.
> > >> Cycles outputs velocity in the "Vector" pass, it renders motion blur
> > >> (object and deformation), so I guess that this attribute exists
> > >somewhere...
> > >> Am I wrong ?
> > >> Is it possible to add it in the output of the attribute node ? Is it
> > >a
> > >> nightmare ?
> > >>
> > >> Thanks.
> > >>
> > >> ---
> > >> Manuel Rais
> > >> Autour de Minuit
> > >> manu at g-lul.com (mailto:manu at g-lul.com)
> > >> _______________________________________________
> > >> Bf-committers mailing list
> > >> Bf-committers at blender.org
> > >> http://lists.blender.org/mailman/listinfo/bf-committers
> > >>
> > >
> > >
> > >
> > >--
> > >With best regards, Sergey Sharybin
> >
> > ---
> > Manuel Rais
> > manu at g-lul.com
> > +33 (0)6 62 29 80 86
> > _______________________________________________
> > Bf-committers mailing list
> > Bf-committers at blender.org
> > http://lists.blender.org/mailman/listinfo/bf-committers
> >
> _______________________________________________
> Bf-committers mailing list
> Bf-committers at blender.org
> http://lists.blender.org/mailman/listinfo/bf-committers
>



-- 
With best regards, Sergey Sharybin


More information about the Bf-committers mailing list