Forum: Carrara

Subject: Underwater torpedo wake

Michael_C opened this issue on Aug 08, 2006 · 5 posts

Michael_C posted Tue, 08 August 2006 at 7:39 AM

Attached Link: Underwater series

I'm putting together an underwater scene with a torpedo running and looking for ways to do the 3D torpedo wake in either Carrara 5 Pro or Poser 6.  My intial attempt in Poser was a smoke object turned horizontal.  This sort of worked but will need several replications for a substantial wake.  It seems like a volumetric solution would be better.  I'd like some twists and turns in the wake and it will be fairly long.  Any suggestions?  Thanks.

(This is for the continuation of the series linked.)

Michael

 

 

My Store - My Gallery - My Freebies - My Web Site

bluetone posted Wed, 09 August 2006 at 9:56 AM

I would think a Particle object that you then animate it's motion with the particles being bubbles and have them set to 'Free' would work out. Give them plenty of 'Life' so that they survive long enough to work, and set them to have a slight negative 'Z' gravity setting so that they float up in the water.

As far as a wake on the surface, LOTS of people have tried many different methods to create a wake. The best that I know of involves creating a 2d video, then using it as a displacement map on the surface of your water.

Let us all know how it all works out for you!

Michael_C posted Sat, 12 August 2006 at 9:43 AM

Thanks, blue.  I think your suggestion will work.  I don't expect the wakes will be a significant part of the render, but sometimes that attention to detail makes gives a much better result.  Looks like I have some experimantation in front of me.

My Store - My Gallery - My Freebies - My Web Site

Michael_C posted Sun, 13 August 2006 at 1:59 PM

I've been fooling with bluetone's suggestion and getting pretty nice results.  However I haven't worked with particle emitters much and I have question.  I've adjusted the gravity effects to cause the bubbles to rise, but they only go so high as if there's a limit.  See the attached side view.  Any thoughts?

 

My Store - My Gallery - My Freebies - My Web Site

Michael_C posted Sat, 19 August 2006 at 4:15 PM

I did some experimenting and a little thinking and answered my own question.  The apparent bounding of particles is the consequence of physics.  If there is no variation of mass I get the nice cylinder attached. 

My Store - My Gallery - My Freebies - My Web Site