Space Gas and nebula... Just an idea.... 2004-03-04 - By Schoenberger
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I would say you need a shader writer....
Perhaps you can get something cool with the gitane/smoke shader.
But I would say you can't tweak it into the nebula shape the customer
wants. You can offer the customer some different shapes, that's all.
Perhaps a lot of scenes with some particles, some volume shader and a
lot of compositing....
Holger Sch�nberger
technical director. animator. freelancer
The day has 24 hours, if that does not suffice, I will take the night
>> -- --Original Message-- --
>> From: owner-xsi@(protected)
>> [mailto:owner-xsi@(protected)] On Behalf Of Patrick Vier
>> Sent: Thursday, March 04, 2004 10:50 AM
>> To: XSI@(protected)
>> Cc: Ed Harriss; harry@(protected)
>> Subject: Re: Space Gas and nebula... Just an idea....
>>
>>
>> Yes, i've tested with volumic light, but, is not possible
>> to sculpt the
>> volume of the light...
>> Just an idea :
>> Modeling an object and say that it's the volume of the light.
>> Put the light inside, and the "photons" runs inside (and
>> NOT outside) the
>> volume from the light source (i use the photons word, just
>> to show the
>> idea).
>> Use the weight map on the modeling object, why not, to
>> tweak the intensity
>> of the light along the travel of the photons inside the
>> object (sometime
>> more or less intensity)
>> ... to see this inside intensity, we can use a "super
>> volumic 3d texture
>> (smoking stuff, etc...)" with a new weight map who
>> controling the intensity
>> falloff between the surface border and the center of rthe
>> object section...
>>
>> I know that my english is not perfect, but i hope that U
>> understand what i
>> mean... see tha picture attached.
>>
>> Otherwise, i've made test with particles and it's working
>> fine... will add
>> some test and post an image soon...
>>
>> Thank you to all.
>>
>> Patrick :)
>>
>> -- -- Original Message -- --
>> From: "Ben Kilgore" <ben@(protected)>
>> To: <XSI@(protected)>
>> Sent: Wednesday, March 03, 2004 4:34 AM
>> Subject: Re: Space Gas and nebula...
>>
>>
>> > Don't forget about volumic lights. This is another
>> viable option for
>> > creating these effects, with another host of limitations
>> and issues.
>> >
>> > Ben
>> >
>> > -- -- Original Message -- --
>> > From: "Eric Lampi" <ericlampi@(protected)>
>> > To: <XSI@(protected)>
>> > Sent: Tuesday, March 02, 2004 2:39 PM
>> > Subject: Re: Space Gas and nebula...
>> >
>> >
>> > > I have to agree. Unless you have a lot of experience
>> > > with XSI particles, and you have a large renderfarm
>> > > it's really not a good idea.
>> > > Let's not forget that even if you were I hope you have
>> > > several weeks to dedicate to working it out.
>> > >
>> > > These sorts of F/X are not easy to pull off, no matter
>> > > what you're using.
>> > >
>> > > Eric
>> > > --- Anthony Rossano <anthor@(protected)> wrote:
>> > > > Hi Patrick -
>> > > > This is tough to say, but you should probably save
>> > > > yourself the agony
>> > > > of trying to do this in XSI.
>> > > > 1) Volumes... can't move the camera through them
>> > > > 2) particles: really really hard to get nice smooth
>> > > > gaseous energy
>> > > > wispy rendering.
>> > > > I wish I was more confident. BUT - someone on the
>> > > > list did it- I can't
>> > > > remember who, Ed Harriss or Jeremy Birn or someone
>> > > > ....
>> > > > ATR
>> > > >
>> > > >
>> > > >
>> > > > On Tue, 2 Mar 2004 17:22:49 +0100, Patrick Vier
>> > > > wrote:
>> > > > > Post_Logic - Mail paperBonjour All,
>> > > > >
>> > > > > I must realise a test for a futur customer
>> > > > (i hope), but the
>> > > > > test is for create space gas, nova, nebula (think
>> > > > to Atacama from
>> > > > > Phoenix tools web site)...
>> > > > > and the camera travel throught the gas...
>> > > > remember the movie
>> > > > > "Contact" with Juddy Foster... something near
>> > > > that.
>> > > > >
>> > > > > I know, i will use particles and maybe
>> > > > volumic shaders... but
>> > > > > could you tell me how can use them and the way to
>> > > > do.
>> > > > >
>> > > > > Thank you.
>> > > > >
>> > > > > Patrick
>> > > > > *********
>> > > > >
>> > > > >
>> > > > >
>> > > > > Patrick Vier
>> > > > > Post Logic
>> > > > > tel 33 (0)1 46 37 77 61
>> > > > > fax 33 (0)1 46 37 55 51
>> > > > > email patrick@(protected)
>> > > > >
>> > > > >
>> > > > [ Anthony Rossano ]
>> > > > - CEO, Mesmer Inc -
>> > > > -tel: 206.782.8004-
>> > > > -fax: 206.782.8101-
>> > > > http://www.mesmer.com
>> > > > ---
>> > > > Unsubscribe? Mail Majordomo@(protected) with the
>> > > > following text in body:
>> > > > unsubscribe xsi
>> > >
>> > >
>> > > ==== >> > > Freelance 3-D Animator, F/X Artist
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