Subject: AW: Ocean/Water Tricks 2005-06-24 - By brad
Back
Remember that the color value of your shader = the distance traveled in the
normal direction of your surface. If you want to move your entire surface down,
you can pipe the shader through a Math>Scalar Basic node and subtract a value.
-Brad
-- ----Original Message-- ----
> thanks for the help Brad. After following your steps and some tweakingI am
getting pretty good ocean surfaces but the displacement "raises"the whole grid
a couple units in Y. Is that a normal thing fordisplacement? Is there a way to
stop this from occurring. Appreciateall 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
SonesGesendeeeeet: 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:unsubscribe xsi --
-Unsubscribe? Mail Majordomo@(protected) with the following text in body
:unsubscrib!
e xsi -- Cole SonesNOAALead Something Somewhere206.526.4412 WORK206.579.3343
CELL
>
> -- ----Original Message-- ---- --Unsubscribe? Mail Majordomo@(protected)
with the following text in body:unsubscribe xsi
>
> -- Cole SonesNOAALead Something Somewhere206.526.4412 WORK206.579.3343 CELL
-- ----Original Message-- ----
---
Unsubscribe? Mail Majordomo@(protected) with the following text in body:
unsubscribe xsi
|
|
