A 3'20" Hi-Res Fractal Video made with QB, with sound !

[Jark]

The soundtrack doesn't have much influence... The DivX codec has worked fine, and I think 10.5 Mb is OK now, in 2004.

I also can slice the video into 6 subfiles, that can be merged easily with any shareware (I use Ordix Mpack for example).

Now, if someone really wants to D/L that with a 56k modem, I will pray for him :lol:

And don't forget my machine will be connected on Kazaa from 8PM Paris time...

[R@dioman]

I was hoping to travel INTO the fractal instead of hovering on top all the time. Would that be possible?

[Jark]

I was hoping to travel INTO the fractal instead of hovering on top all the time. Would that be possible?

The M-Set is flat: no hope to get inside it... But if you D/L the "Mandelbrot Endless Loop" which is also on the Dazibao (search the Fractals Section, page Fractal Videos), you will see what it gets when the zoom factor increases from 1 to 15 000 000 000...


For those who cannot D/L the 42 Mb version, I have uploaded a smaller version of 10 Mb "only".

You will find the explanations, the two videos and the source codes (everything was made with QB4.5 and MS-Paint, like all the graphics of the Mandelbrot Dazibao) here:

http://mandelbrot.dazibao.free.fr/Flight/Flight.htm

[relsoft]

Jark: Although the mandel is flat, you can make the colors a sort of a height map and render lines instead of just pixels. Just a thought though.

BTW, are all raytracing techs use this?

Ray=O+ t*direction ?

I've done a lil on raytracing for a free directional tunnel mapping but I could only render one quadrant as SQR keeps giging me errors. :*(

[Antoni Gual]

[quote="Jark"]
It is very similar to controling a missile in flight (that was my first job in 1987-1988 suring the SDI project
[quote]

You disclosed it! If tcpa goes ahead we risk having "rogue state's" missiles programmed in QB. :rotfl:

[Jark]

We already had a thread about this, Relsoft : remember you asked if it was feasible to raytrace the M-Set.

I tried once:


In fact, there are three zones in a M-Set picture: the points inside the fractal, the points outside, and the intermediate zone, where te interesting patterns are.

The only way to get a good rendering of this intermediate zone is to use a formula such as the Distance Estimator Algorithm. Still, even if the result is a continuous function, it is far from being smooth, and you cannot get a solid shape out of that.

So the solution is to use the DEA as a bumpmapping function:


It provides very nice pictures if you zoom in:


The problem is the time it takes to render just one picture... Instead of one loop per pixel, you must compute four of them to get the bumpmapping effect !

So, for the 2408 images I had to generate, I prefered to stick to a conventional rendering:

[Jark]

[quote][quote="Jark"]
It is very similar to controling a missile in flight (that was my first job in 1987-1988 suring the SDI project
[quote]

You disclosed it! If tcpa goes ahead we risk having "rogue state's" missiles programmed in QB. :rotfl:[/quote]

The weapon systems we were working on were ANTI-missiles (we called that ATBM, for Anti Tactical and Balistic Missiles). In fact, my expertise was mainly on radars, but my first programming skill was to simulate the behaviour of the complete stuff : target, radar, missile and control unit :barf:

So I could tell you a lot about the anti-missile capacities of the Patriot, that can have only three missiles in flight at the same time, and that only managed to shoot down an old Scud (very easy target compared to a SS23) with the three missiles launched on the same target, because the poor little Scud had the bad idea to arrive with a convenient attack angle...

The only targets a radar controled middle range ground to air weapon system can shoot down with a good Pk (Probability of Kill) are the commercial aircraft. They are usually unable to do anything against a military aircraft (countermeasures, jamming, escape trajectories): that's why the milicias and the terrorists use things like the Stinger, which is humanly guided.

I don't think I will do this kind of job any longer :barf: :barf: :barf:

[Antoni Gual]

So I could tell you a lot about the anti-missile capacities of the Patriot, that can have only three missiles in flight at the same time, and that only managed to shoot down an old Scud (very easy target compared to a SS23) with the three missiles launched on the same target, because the poor little Scud had the bad idea to arrive with a convenient attack angle...:

They may have hired a more motivated programmer since you leaved...

The only targets a radar controled middle range ground to air weapon system can shoot down with a good Pk (Probability of Kill) are the commercial aircraft.

From now I will remember it each time I fly...

I don't think I will do this kind of job any longer :barf: :barf: :barf:

One gets wiser with age.. I imagine that can be a very attractive job for a young guy just leaving the uni..



PS: I had the idea all that military technology industry was located in Toulouse. Is it also in Bordeaux?

[Jark]

I have quitted the military domain a long time ago (in 1989...).

In Toulouse, you will find commercial aircraft (Airbus and ATR), and some space technology.

In Bordeaux, there are to plants: one dedicated to some parts of Ariane, and another to the propulsion. Plus some smaller plants of Thales, ex-Thomson.

The rest of the french hi-tech is located mainly around Paris, where I used to work by the time. I was assigned to this SDI sub-project called TMDAS, so I spent half of my time in Huntsville, Al, where the MiCom (Missile department of the US Army) is located because Von Braun arrived here during WW2.

Reminds me something sad: a few weeks after I started working, some islamists killed several people with grenades rue de Rennes, in Paris. That's disgusting...