Lorenz 4D - Lists

[RobbeK]

An animation based on previous.
Slight problem is the trajectories are not centered around the origin (0,0,0)

I downloaded some PDF's about OpenGL and I wonder if those lists can be addressed in a way (it could be handy to manipulate them , but ? )


.. arrow keys Pg U/D as usual ,,


best Rob

[ReneMiner]

Nice screensaver :D

somehow it jumps a little up and down - why is that?
I tried more precise vartype than Single (Double, Ext) but won't help much...

[RobbeK]

Hi Reneminer,

Probably I'v overlooked something -- sequence of drawing is (1 ... n) , (2 ... n+1) , (3 .. n+2) ... etc.. , probably I did something wrong during pushing and popping the coordinate system parameters --

best Rob

[Petr Schreiber]

Hi Rob,

you can use entities instead of lists - then you can manipulate each object later.
The key would be to settle up parent-child relationship between them.

I like this script a lot, can't stop watching it :)


Petr

[RobbeK]

:-)

OK, entities it will be then .. the idea is to build (concatenate , partly remove ) without starting from zero everytime. In this case it's only one to remove and one to add (I had to rebuild 200 spheres every frame ).

thanks, Rob

[Petr Schreiber]

Hi Rob,

to make it easier, you might try this special MovingSphere custom entity - it has some kind of data binding:

you pass it variable from which it should use position
it updates the position whenever the variable changes value


Petr

[Petr Schreiber]

The flexibility of thinBasic sometimes surprises even... myself :D

The same thing as above, but with OOP interface and data binding.


Petr

Note: Yes, you could add SetPos method to set the position directly, but that would lack the automagical feeling ;)

[RobbeK]

Hi Petr,


S u p e r <(-.-)>

I added the radius to the UD SphereData .. this gives incredible possibilities .. I can pre-JIT the scene (hide spheres by Radius = 0 , or simulate the time (sum of the dt values) by making the actual spheres in a time zone thicker and point-size the others etc .... )

great,
thanks again

[ReneMiner]

I was nosy, as always.
Ehhm...
Petr, what I don't understand in your SimpleDataBindingOOP-example:
Why does one want to pass scene & entity-id to the function eMovingSphere.Destroy?

[Petr Schreiber]

Well,

because it was lazy port from actor template :oops:
Of course, it could be omitted...

I will prepare new template for next thinBasic.


Petr