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Tuesday, December 11, 2012

Fluid particles simulations


Simulation 1 : 2000 particles involved / different fluids' viscosity in a cube.


I played with different settings but still don't understand the following:

1- why particles agglomerate to the wall? (and do not respect the interaction radius value...)

2- why one fluid doesn't migrate over the other? (the two fluids have two different viscosity values)

Simulation 2 : two fluids particles (6k) with different mass

The fact that the fluid doesn't migrate over the other is due to the mass and not viscosity as demonstrated by the next video.


Simulation 3 : two fluids particles (12k) different mass and thick frontwall


Blender keyed particles system with path option - Tutorial



 The two particles systems to be keyed must be created first. In this example, one for the cube and one another for the sphere.

Tuesday, November 6, 2012

Blender fluid control demo / tutorial

A short video to demonstrate the fluid control feature in Blender.

A fluid box, a fluid domain and a Suzanne... that's all.

Let me know your comments.

Blender keyed particles system with path option - Tutorial


The two particles systems to be keyed must be created first.
In this example, one for the cube and one another for the sphere.

Then create a third particles system that will key the two first PS.

As you can see, the particles goes from one object to the other.

Now activate the path option, this will display the path for each particles between system1 and system2.

Play with path options (start / end) or particles system option like initial velocity...

You can view some demos videos here:
intro - simple keyed particles - http://youtu.be/8iXK6OuX2V0
intro - keyed particles with path option shaping a spider web - http://youtu.be/F6IMLSWLw5E

Let me know your comments.

fluid without gravity through a nail


Fluid domain resolution: 200

Blend file available here:
https://docs.google.com/open?id=0B2BWubg0Qrg4TmdMRl9ybkcycEU

intro - keyed particles with path option shaping a spider web


Intro to illustrate the "path" option usage in particles system.

4 particles systems keyed two by two. Path option selected in the particles systems' "render" tab to shape a sort of spider web.

Blend file here:
https://docs.google.com/open?id=0B2BWubg0Qrg4M2pZc1ZmcTdfWGc

intro - simple keyed particles


Simple animation to demonstrate keyed particles in Blender.

Blend file available here:
https://docs.google.com/open?id=0B2BWubg0Qrg4UWJzY3RNUnFpRkU

hourglass of lights - fluid particles system


Sandglass filled with a fluid particles system. Each particle is an object defined as a point of light. 500 particles are used here.

Noted that the repulsion factor is max and interaction radius is far higher than the defined particule size. This is to lower the particules ' concentration.

Blend file is here:
https://docs.google.com/open?id=0B2BWubg0Qrg4dzhGVHhHSnZsS00

Let me know you comments.

sandglass PoC with bullett physics



Sandglass with 5000 sand particles (cubes) animated with blender game engine / bullett physics.

Need a very large scale for the hourglass (dimensions 200x200x400) otherwise the bullett engine doesn't work well...

To make it stick to the reality, you need to increase the particles number and lower the size of the cubes. (I haven't enough power/ram on my PC)

Blend is here:
https://docs.google.com/open?id=0B2BWubg0Qrg4WUNlVTBCOU5EN0E

smoke variation - magnetic


Smoke variation with magnetic field

One red light and one green light, no heat texture.

Blend available here:
https://docs.google.com/open?id=0B2BWubg0Qrg4SzJ3SnVtbnAtZ3c

smoke variation - multicolor / heat texture


Another example of heat texture applied to smoke.

64 divisions only for the smoke domain.

The blend is available here:
https://docs.google.com/open?id=0B2BWubg0Qrg4VU9TTzcxcWlSS0E

smoke variation - simple


Smoke variation - simple

A scale-changing torus generating smoke.

Yellow light at the top right corner and a red light at the bottom left corner.

No heat texture applied yet.

Blend available at:
https://docs.google.com/open?id=0B2BWubg0Qrg4bTd5TW1oUDRweU0

quickexplode demo




This short video to demonstrate the "quick explode" feature in Blender.

A shape key is used to deform the text before the explosion.

Blend can be found here :
https://docs.google.com/open?id=0B2BWubg0Qrg4bVctLUNjWWk1aTA

quickfire demonstration





Quickfire demonstration

This is another video to demonstrate the "quick fire" feature. Done in a few minutes

You can refer to this tutorial as well : http://www.youtube.com/watch?v=4PS-CBHYQME&feature=g-like

Select the object, press space bar, enter "quick", select quick smoke. Then in "the object tools", select "fire".

All parameters are kept by default except the following :

- lower the "step size" value in the smoke domain material settings (under Integration) otherwise the rendered images will be pixelated. In this video, I set the value to 0.01.

- in the "Smoke High Resolution" (Smoke Domain parameters), set the divisions to a value of 2 and Noise Method to FFT.

- in the SmokeParticles, lower the number from 100000 to 10000

The color change from red to blue is done by inserting key frames on the color ramp ("Smoke heat" texture on the domain)

Blend can be found here:
https://docs.google.com/open?id=0B2BWubg0Qrg4bER0NEwyLWpQZmM

wineglass slowmotion





First project: wineglass filled in slow motion

Blend file available here:
https://docs.google.com/open?id=0B2BWubg0Qrg4UGNqOTNzVDFXZms