Subject: AW: Ocean/Water Tricks 2005-06-24 - By Cole Sones
Back
thanks for the help Brad. After following your steps and some tweaking I
am getting pretty good ocean surfaces but the displacement "raises" the
whole grid a couple units in Y. Is that a normal thing for displacement?
Is there a way to stop this from occurring. Appreciate all the help .
-c
brad wrote:
>There is no "easy" way to do interactive oceans and splashing effects, which
is why there's the need for 3rd party specifics such as Arete and Real Wave. If
you intend to do interaction with your surface, then you'll need your vertex
points to move in order to give you reference from which to deform for wakes
and emit particles for splashing.
>
>You can move the points using the waves operators, but they are not well
suited for the amount of randomness you need for an ocean. If you want to go
the rout of generating your waves via textures, you'll need to convert the
displacement maps to shpe animation. There are plugins out there you can find
on the various XSI site that will convert grayscale to vertex v-values, but I'm
not sure about animated ones.
>
>Then you are dealing with an enormous data set, so much of your time will be
spent figuring out ways to cheat the ocean grid resolution into something
manageable. This fact holds true for the third party apps as well, so you'd be
stuck doing this regardless.
>
>Once you have moving points for your wave action, you can use lattice deforms,
and particle effects to get all the interaction you need... displacements,
wakes, foam, etc.
>
>-Brad
>-- ----Original Message-- ----
>
>
>> Yup, I know this, thanks!
>> I should have been a bit more specific I suppose. I want to build
ainteractive ocean/sea. Something that Object A can affect the oceansurface.
Based on Brads techniques and the ones that i have here, if Iwanted to create a
wake or swell, or even a splash?
>> Thanks again.
>>
>> Marc wrote:
>>
>> You probably know this...if not...its a good start:http://www.garryrunke.com
/tutorials/Water-Tutorial.html
>>
>> -- --Urspr?ngliche Nachricht-- --Von: owner-xsi@(protected) [mailto:owner
-xsi@(protected)] Im Auftragvon Cole SonesGesendeeeet: Freitag, 24. Juni 2005
20:05An: XSIBetreff: Ocean/Water TricksAny one have any quick to render ocean
/water shadier tricks up theirsleeves that don't involve Psunami plugins? thanks
---Cole SonesNOAALead Something Somewhere206.526.4412 WORK206.579.3343 CELL--
-Unsubscribe? Mail Majordomo@(protected) with the following text in body
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>>
>> ---Unsubscribe? Mail Majordomo@(protected) with the following text in body
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>> -- Cole SonesNOAALead Something Somewhere206.526.4412 WORK206.579.3343 CELL
>>
>>
>-- ----Original Message-- ----
>
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--
Cole Sones
NOAA
Lead Something Somewhere
206.526.4412 WORK
206.579.3343 CELL
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thanks for the help Brad. After following your steps and some tweaking
I am getting pretty good ocean surfaces but the displacement "raises"
the whole grid a couple units in Y. Is that a normal thing for
displacement? Is there a way to stop this from occurring. Appreciate
all the help .<br>
<br>
-c<br>
<br>
brad wrote:<br>
<blockquote type="cite"
cite="mid20050624194637.22760.qmail@(protected)">
<pre wrap="">There is no "easy" way to do interactive oceans and splashing
effects, which is why there's the need for 3rd party specifics such as Arete
and Real Wave. If you intend to do interaction with your surface, then you'll
need your vertex points to move in order to give you reference from which to
deform for wakes and emit particles for splashing.
You can move the points using the waves operators, but they are not well suited
for the amount of randomness you need for an ocean. If you want to go the rout
of generating your waves via textures, you'll need to convert the displacement
maps to shpe animation. There are plugins out there you can find on the various
XSI site that will convert grayscale to vertex v-values, but I'm not sure about
animated ones.
Then you are dealing with an enormous data set, so much of your time will be
spent figuring out ways to cheat the ocean grid resolution into something
manageable. This fact holds true for the third party apps as well, so you'd be
stuck doing this regardless.
Once you have moving points for your wave action, you can use lattice deforms,
and particle effects to get all the interaction you need... displacements,
wakes, foam, etc.
-Brad
-- ----Original Message-- ----
</pre>
<blockquote type="cite">
<pre wrap=""> Yup, I know this, thanks!
I should have been a bit more specific I suppose. I want to build ainteractive
ocean/sea. Something that Object A can affect the oceansurface. Based on Brads
techniques and the ones that i have here, if Iwanted to create a wake or swell,
or even a splash?
Thanks again.
Marc wrote:
You probably know this...if not...its a good start:<a class="moz-txt-link
-freetext" href="http://www.garryrunke.com/tutorials/Water-Tutorial.html">http:/
/www.garryrunke.com/tutorials/Water-Tutorial.html</a>
-- --Ursprüngliche Nachricht-- --Von: <a class="moz-txt-link-abbreviated"
href="mailto:owner-xsi@(protected)">owner-xsi@(protected)</a> [<a class=
"moz-txt-link-freetext" href="mailto:owner-xsi@(protected)">mailto:owner-xsi
@(protected)</a>] Im Auftragvon Cole SonesGesendeeet: Freitag, 24. Juni 2005
20:05An: XSIBetreff: Ocean/Water TricksAny one have any quick to render ocean
/water shadier tricks up theirsleeves that don't involve Psunami plugins? thanks
---Cole SonesNOAALead Something Somewhere206.526.4412 WORK206.579.3343 CELL--
-Unsubscribe? Mail <a class="moz-txt-link-abbreviated" href="mailto:Majordomo
@(protected)">Majordomo@(protected)</a> with the following text in body
:unsubscribe xsi
---Unsubscribe? Mail <a class="moz-txt-link-abbreviated" href="mailto
:Majordomo@(protected)">Majordomo@(protected)</a> with the following text in
body:unsubscribe xsi
-- Cole SonesNOAALead Something Somewhere206.526.4412 WORK206.579.3343 CELL
</pre>
</blockquote>
<pre wrap=""><!---->-- ----Original Message-- ----
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Cole Sones
NOAA
Lead Something Somewhere
206.526.4412 WORK
206.579.3343 CELL </pre>
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