[Bf-committers] Proposed Noise Modifier

[Greg Zaal]

Just my 2 cents:

"Displacement" in terms of the English definition means "the action of
moving something from its place or position".

While I know that in CG terms it refers to individual vertex displacement
using some texture to give detail or randomness to a mesh, the English
definition would still describe this new function of displacing the
instance as a whole. I think it would be most intuitive to join the
proposed modifier with the Displacement modifier as Campbell suggested,
with a Constant/Texture/Noise enum. And unless I'm misunderstanding, I
don't really see the point of the vertex noise idea - just use a small
colour noise texture with the displacement modifier set to RGB>XYZ (though
perhaps this textureless way is much faster?)

Plus the modifier list is long enough already :)

Cheers (and thanks for this great feature!)
Greg Zaal


On 17 February 2014 16:20, Jonathan Williamson <jonathan at cgcookie.com>wrote:

> I don't have a strong opinion one way or the other, except that I think the
> proposed and existing functionality and both very important to have.
>
> I have not tested the patch yet, but from the descriptions it seems to me
> that the proposed Noise modifier is really Mesh Noise + Object Offset.
>
> The Object Offset (via the Whole Mesh Mode) is really beneficial when
> arraying objects and is something we've not be able to do before. Am I
> correct in thinking it can offset object instances within an array?
>
> Jonathan Williamson
> http://cgcookie.com
>
>
> On Sun, Feb 16, 2014 at 3:19 PM, Thomas Beck <software at plasmasolutions.de
> >wrote:
>
> > Hi Patrice,
> >
> > I find your modifier very useful and needed! Every time when we are
> working
> > here in the studio with array modifiers we have the same problem:
> > Randomizing those perfectly aligned clones. We are at the moment using a
> > tiny little script but we would love to have it on the modifier stack.
> >
> > I agree with Campell on the other side though that when it comes to
> > randomizing vertices a displacement modifier is "enough" (if you could
> say
> > that as an artist...we want always more ;)) But as you clearly stated,
> the
> > two first options are more or less a by-product of your real work and I
> > could not see any harm on having a specialized modifier for randomizing
> > stuff - only possibilities.
> >
> > I'm looking forward to seeing your work improve and I'm happy that there
> is
> > some optimizing efforts going on from Campbell in the displacement mod
> > (that is awesome btw too).
> >
> > Good work so far! Will subscribe to the task...
> >
> >
> >
> >
> > 2014-02-16 16:58 GMT+01:00 Patrice Bertrand <
> patrice.bertrand.eu at gmail.com
> > >:
> >
> > > Hi,
> > > Keep in mind that the main goal is to add randomness to arrays of
> objects
> > > and to dedicated objects, which clearly the displacement modifier will
> > not
> > > do.  The "individual vertices" mode is just a simple by-product, like
> > > "while we're at it we could as well shift vertices".   When it comes to
> > > shifting vertices, clearly, this is very coarse, and
> displacement+texture
> > > is far more powerfull and flexible.  But overall I don't think the
> > proposed
> > > noise modifier is redundant.
> > > This being said, I did think of adding a 'along normal' option to the
> > > vertex mode, which would act a tiny bit like a displacement, albeit
> > without
> > > any of the patterns that textures allow.
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