Re: Shattering glass?

["Morten Bartholdy" <xsi(at)colorshopvfx.dk>]

The glass shards need to look very real Kim, and regarding the simulation - 
I don't need it for motion but for positioning x number of pieces in space. 
Imagine a lightbulb that explodes and sends shards in all directions taking 
a snapshot with fast shutter when the cloud of shards is app. 60 cm across. 
So if you have a script that switches from passive to active it would help 
me. Then I just need to find a sort of automated way to model those 100+ 
pieces of glass. I suspect I may get away with having 20-30 unique versions 
whereas fever than that would be too visible for a still. The beauty of 
Blastcode is it builds all those pieces from a crack map - that would be 
nice to have in XSI.

Morten Bartholdy
3D & VFX Artist





----- Original Message ----- 
From: "kim aldis" <xsi(at)kim-aldis.co.uk>
To: <XSI(at)Softimage.COM>
Sent: Friday, February 01, 2008 6:19 PM
Subject: RE: Shattering glass?


> How real, Morten. I may have something that will work for you. Uses rigid
> bodies but it automatically sets a switch animation from passive to active
> dependent upon distance from a centre. Then use gravity or object to kick
> the segments off.
>
> > -----Original Message-----
> > From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On
> > Behalf Of Morten Bartholdy
> > Sent: 01 February 2008 15:02
> > To: XSI(at)Softimage.COM
> > Subject: Re: Shattering glass?
> >
> > Thanks for the suggestions guys. I need to make 100+ pieces of
> > irregular
> > broken curved glass pieces for highres still work, so I would
> > appreciate
> > some level of automatization - I guess we might be better off doing
> > this
> > with Blastcode in Maya :(
> >
> > Morten Bartholdy
> > 3D & VFX Artist
> >
> >
> >
> > ----- Original Message -----
> > From: "Alan Fregtman" <alan.fregtman(at)gmail.com>
> > To: <XSI(at)Softimage.COM>
> > Sent: Friday, February 01, 2008 3:32 AM
> > Subject: Re: Shattering glass?
> >
> >
> > > Or online and free and awesome:
> > > http://vectormagic.stanford.edu/
> > >
> > >
> > > On Jan 31, 2008 10:53 AM, Juan Brockhaus <juanb(at)the-mill.com> wrote:
> > >> Hi,
> > >>
> > >> haven't done shattered glass (as far as I remember...), but this
> > little
> > >> software helped me a few times to convert bitmaps to curves:
> > >>
> > >> www.wissenuk.com/products/traceline.htm
> > >>
> > >> Juan
> > >>
> > >>
> > >>
> > >>
> > >> Joe Laffey wrote:
> > >> > On Thu, 31 Jan 2008, Robert Chapman wrote:
> > >> >
> > >> >> Had to do this yesterday, got the director to provide a 'shatter'
> > >> >> image and
> > >> >> spent about half an hour tracing it with the add polygon edge
> > tool.
> > >> >> Once
> > >> >> complete its pretty easy to loop through each poly, extract and
> > >> >> extrude for
> > >> >> thickness. granted this particular glass shatter wasnt that
> > >> >> complicated, for
> > >> >> something more complex I would automate by using the 'trace'
> > feature
> > >> >> in
> > >> >> illustrator/flash of a suitable bitmap shatter and output an .ai
> > file
> > >> >> for
> > >> >> further seperating and  extruding.
> > >> >>
> > >> >
> > >> >
> > >> > I did a glass shatter with a custom pattern by drawing the lines
> > in
> > >> > Illustrator, creating the pattern. Then in Illustrator I used the
> > >> > Pathfinder features to give the lines thickness (convert them to
> > >> > polygons,
> > >> > not strokes). Then still in Illustrator I booleaned those out of a
> > >> > rectangle. This gave me the basic shape with fine cracks (make the
> > >> > lines
> > >> > real thin). I think I did the dynamics for that one in LW, but it
> > would
> > >> > be
> > >> > about the same in XSI.
> > >> >
> > >> >
> > >> > --
> > >> > Joe Laffey                |       Visual Effects for Film and
> > Video
> > >> > LAFFEY Computer Imaging   |     ----------------------------------
> > ---
> > >> > St. Louis, MO             |       Show Reel
> > http://LAFFEY.tv/?e08931
> > >> > USA                       |     ----------------------------------
> > ---
> > >> > .                         |        -*- Digital Fusion Plugins -*-
> > >> > ------------------------------------------------------------------
> > --------
> > >> > Mail here will be rejected --> "Real Trap"
> > <r_trap(at)laffeycomputer.com>
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