Hi hashers ....

I produced a litle sequence to demonstrate the density property ...

I put togheter 5 movies .. in the wall the bricks are using default properties ( density = 1 Kg/dm2 )

Sphere´s density:

Sequence 1 = 0,2 Kg/dm2
Sequence 2 = 0,6 Kg/dm2
Sequence 3 = 1 Kg/dm2
Sequence 4 = 2 Kg/dm2
Sequence 5 = 1 kg/dm2 / Elasticity = 1

Great test Marcos.

I have to agree - excellent way of demonstrating the differences

WOW! More! More!

cool. Is there any kind of pre-roll needed for the bricks to "settle" on each other? Do they have to be modeled with a gap so they know they are separate?

Nice test, Marcos!

Awesome! You almost did all the work for a new 'Cosmic Bowling' demonstration! I caught my 'apprentice' viewing the Cosmic Bowling tutorial...that is antiquated info and needs to be 'Newton-i-fied'.

Very scientific. Highly appreciated...care to post the project?

That is a great example of showing how density works, Marcos, thank you.


If it helps, a while ago I wrote this for Exercise 17:
Click to view attachment

pre-roll isn't needed.. I modeled just 1 brick then construct the wall in the choreography using it...


I'll upload the project later ( it is in my other computer )....

More tests coming ....

Here is the project....

Great projects Marcos! Keep'em coming. I got one noob question though... not directly related to newton... Is there a clever way to stack those bricks, or do you have to do it manually?

Hi Stian ....

I did it manually ... brick on brick ..... I don't know if there is a way to construct the wall automatically

Really cool demonstration.

So, your sort of a '3D mason'...

Yeah---since every brick needs to have it's center point on the zero's (zeroX-zeroY-zeroZ) there is really no way to copy-paste in the model window and still have the simulation work...

When I remember right (it's a long time ago), I have such a plugin .
It was built for the troll sample, because I'm a lazy guy :-)
I will look this evening for this .

Very useful and a bright example - thanks Xtaz & Steffen!

There can be these?
http://www.hash.com/NewtonPhysics/samples/resolution.mov
http://www.hash.com/NewtonPhysics/samples/troll.zip

Have (re)found the brick plugin now.
Download here
It's pc only (maybe at the weekend the mac version too)
Start it from the chor ,
select in the plugindialog the model to import
space means the distance between the importet models (should not be 0 , otherwise there is a intersection at simulationstart)
scaling means that the both outer models in uneven rows are scaled in x to 50%

The model(cache) that you want to import should have set the Newton properties before this plugin run's , this avoids you from setting this manually in all imported models .

Steffen is the only guy I know that during a casual conversation can reveal he's got a really cool plugin he coded just lying around somewhere. You've outdid your self again Steffen I was just wondering if there was something available to do that.

I was wondering if the ball was actually rolling ... downloaded the chor, ran simulate, and the answer appears to be yes. I see the project already had a texture, though not your original animations.

So is it correct to say that this simulates friction, gravity, directional inertia, rotational inertia, and collisions (including transfer/conservation of energy)? What other physics are involved in this simulation?

Thanks!

Wohoo! It worked like a charm. You are a genius