You are currently browsing the Thiago Costa posts tagged: Simulation


Exocortex SlipstreamFX – Smoke Simulator

Ben Houston’s Exocortex approached me to help on the development of a realtime smoke simulator for Softimage ICE. This is the outcome which I just got permission to show.

SlipstreamRT for Softimage is a proprietary real-time smoke simulator developed for Softimage’s ICE system in collaboration with [exocortex.com/ Exocortex Technologies, Inc.] This video is posted with permission from Exocortex Technologies, Inc. For licensing information please contact [email:info@exocortex.com]

 

I’ve worked on most of the components of the solver including boundary conditions (laminar flow, turbulent flow), vortex shedding, the vorticity equation and particle splitting algorithms.

Most of the tests on this video are done by myself, I’ve also implemented all the workflow and controls demoed in the video.

-Thiago

My work on Assassins Creed Lineage

Just finish working on these series of short films for Assassins Creed 2. The game looks amazing as well!

This project was a joint effort between Hybride (Film studio Acquired by Ubisoft) and Ubisoft Digital Arts (Ubisoft’s own Film studio).

I’ve developed the workflows/tools and lead the Technical Directors ( as well as pipeline development) during the project at Ubisoft.

This was quite an experience and I’m happy with the results, although I wish we had more than 5 months to produce the whole thing… :)
In my opinion (and not because I worked on it) this is the first adaptation of a “game to film” that makes into the form a short film, and doesn’t let me (completely) down. It actually leaves that feeling that we could explore more of this universe in a full length feature film.

YouTube Preview Image

I would be looking forward to work on a full feature film for this brand, with a lot of time to produce it of course :)

More http://www.youtube.com/user/assassinscreed
or  http://www.assassinscreed.com/

Mesher for the SPH

There are at least 3 different meshers for ICE particles that can be used with the SPH:

Pwrapper from 3daliens

emPolygonizer

And Guillaume Laforge is doing this pretty cool project that constructs a fast scalar field in ICE and passes to the polygonizer in a grid structure.

The coolest stuff for me is that the distance function on Guillaume’s polygonizer is an ICE compound! So you can play with it right there and manage to change the way the polygonizer will weight the surface.

It’s exciting to see all these people developing these tools and they are all compatible with my SPH solver, have fun!

Mesher by Eric Mootz

SPH Fluids, looking for testers!

Hello, we are looking for testers to join the SPH fluids simulator for ICE.

This is a free set of nodes for ICE, all you need is register to get access to the testing group, Addon, sample scenes and documentation.


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Subscribe to ICE SPH Fluids
Email:

Visit this group

Microsoft Zune

Package of 6 animations done at Nervo.tv for Zune.
My participation on this project started on RnD, and how we would make the simulation work on the cube shape, then how to animate it. I also did most of the lighting work and the final compositing/color grading.

Few interesting things from this project:
The “Boxes” animation was done simulating rigid bodies in XSI, and a lot of layered animation on top.
The “Liquids” one I had to write a little script to allow me import a sequence of meshes, that came from a standard particle simulation. To then enable people to tweak it later, in a mesh state and apply relax operations etc.
The “Sweets” one was very tricky too, each frame of the animation is a different object. Like a 3d stop motion technique.

This project was fun and challenging at the same time, I’m pretty happy how it turned out.

To see some original sketches/concepts just follow Fabiana’s website

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Credits – project page http://nervo.tv/index.html?sect=5&proj=zune
Creative Director: Nando Costa
3D Artists: Thiago Costa, Jeff Norombaba, Joshua Cox, Catherine Langevin, Gabriel Beauvais
Compositing: Thiago Costa, Jeff Norombaba, Alphonse Swineheart, Robbie Johnstone
Storyboard Artist: Fabiana Fortes
Music: Darrin Wiener

ICE – Particle density

Based on the number of neighboring particles, this compound can adjust the color around the boundaries of a particle cloud.
The range is calculated based on the number of points in the island, so a gradient is smoothly blended to the particle color.

This can be used in any region of the stack. Plug the Execute Color in one ICEtree port and you are good to go.
However if you want the color to update with the simulation, you must use this in the simulation region.

TC Sketch v1.1 – Grease pencil for XSI.

Like the grease pencil tool for Maya, this tool allows you to draw with the sketch tool for 2d animation/per frame annotation, directly in the XSI viewport.
Changes V1.1

  • Assembled the XSI Bezier curve tool, CV Curve tool and Curve Text tool to be used from the TC_sketch PPG
  • Added the “edit frames” command, now you can move your frames in time, selecting a frame in the listbox and using the “up” and “down” buttons.
  • Added the code to work on linux system.
  • The current frame stays visible until the next frame.
  • The listbox now let you navigate/select frames to edit.
  • “Default frame duration” option in the setup tab was renamed to “Last frame duration”. So now it just affects the last frame of the animation.
  • Re worked the entire keyframing command

Features V1.0

  • Drawing mode Auto-keyframing (selectability/visibility).
  • Curves color and Visibility/Selectability overrides.
  • Curve editing The “nav slider” in the “Edit Frames” group is useful to edit/add curves to existing frames. Change this slider will jump the XSI timeline to where the sketched curve is in time.
  • Auto-select curves option will automatically select all the curves for that given frame.
  • XSI Brush tool and View Proportional Transform Tool can be called from the TC_sketch PPG.
  • The Sketch tool creates a standard XSI curve, so you can use any XSI deformer tools on it.

Download addon from the Softimage Community

Here is a video showing this tool


Nike Multiplicity

Little animation for Nike. Did simulation, rendering, everything in XSI.
Compositing and creative direction by Nervo.tv

Simulation was really fun to do, the rigid body solver worked perfectly with a bunch of groups, two environments and animated RB constraints.

CMT – Celebrity Bull Riding Challenge

I was the Lead 3d for this project with Adam Gault and Carlo Vega.
Marcelo Souza helped me a lot to deliver a bunch of animations of the bull.

One thing I can say is that Carlo and Adam are really great people to work with!
If you have the chance, don’t miss it!
They did saved my 3d renders adding a lot of nice colors and style to it.