Automatic operation

GRAVITY



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Principle
The menus
Keyboard Shortcuts
Launching options
Example
Program

































Principle

This application follows dynasenza with more functions such as no gravity.

Bodies are set over a ground, they act according to a gravity field and forces determined by the collision algorithme (impact on the ground).

Each body is associated to a neural network. whose inputs are the angles of its limbs and whose outputs are torques applied to those limbs. Such a network is dynamically trained by the back-propagation algorithm of the error, from a predifened set of learning couples (input,output), the outputs aiming to preserve the balance in a dancing way.

An interactive process provides additional forces from a dynamic analysis of various sensors (such as audio fft).

A feature activated by g key (or click on gravity) satellites a bodie which distance to the hearth is greater than a threshold, press again g key restarts gravity.
Press G key satellites a bodie whose distance to the hearth is greater than a threshold, gravity is automatically restarted if the sound is low during 2 seconds or by pressing g key (or click on no gravity).
This feature is an option value when runing gravity_aud_3.js (audio) or gravity_mou_3.js (mouse).

Option is an automatic process.

A feature activated by
D key made bodies interact (dance).

Mode auto gravity
In interactive mode with audio active and G active, auto gravity (if gravity is active) or no gravity (if gravity is not active: satellisation) and, in mode audio, a little scale allows changing the sensor coefficient in order to quickly adjust the sensitivity of the audio captation. When launching the program an automatic surch determines the minimum value of the audio (so launche the programm in silence).

Mode gravity +
In gra mode when clicking on + or pressing + key a force is applied to bodies in order to liberate them from the earth gravity puting them on trajectories around the sun and fginaly out the galaxy, they travel from now on others galaxies. In plus mode when clicking on = or pressing = key a force is applied to bodies in order to put them in others universes.

WARNING:
files gravity_aud[1,4].js contain option poi, must prese . key (point) in order to liberate the bodies from the earth attraction.































The menus

MAIN
NETWORK
PARAM
SENSOR

































MAIN

HEL: help
DOC: this file
MODEL
BAL
ACT
AUTO
INI
EFF
MUSIC
EXI


































MODEL
Click on nb: number of bodies, on displ: active bodies.































BAL

Enable / disable an automatic balancing process.

ACT

Launches the whole porcess.

AUTO

Automatic mode, must been activated a sensor.

INI

Resets all bodies.

EFF

Automatic variation of effects (with or without texturing, selfing, ...).

MUSIC

Click on name.js; plays music file namle.eee.
Menus are hidden, click in the frame in order to hide the player, press ENTER key then ; key for a mini control (adjust the amplitude of the signal with keys ( and )).

EXI

Exit.































NETWORK

HELRAND
MEMO
COMPO
LEARN
MATRIX
TWIN
ALEA
INI


RAND
Defines as much random neural networks as bodies number, choose number of learning couples and the number of hidden layers.
MEMO
Defines as much neural networks as bodies number, choose the number of predefined learning couples and the number of hidden layers.
COMPO
Allows add learning couples by crossing inputs and outputs: click on a motif number, then on a law number, then finally on VALIDATE.
Choose the number of hidden layers.
LEARN
Learning process: the networks are displayed as well as the errors curve, parameters can be modified on scales.
>MATRIX
The neural weight matrices are displayed.
TWIN
For nb several bodies the inputs of the [2,nb] bodies are the outputs of the first body (like an empathyc process).
ALEA
The neural weight matrices are reseted.

INI

Removes neural networks.































Parameters menu

HEL: help
CHANGE
OUT
READ
WRITE

CHANGE

HEL: help
INI: reset
SCALES: displays scales allowing to change parameters:
       gravity
       reb: rebound
       fric: friction
       force: force of collision
       coe: transmission
       visc: viscosity
       force add: vertical force
       coe gravity: gravity coefficient
       ni: trajectory duration
       period: display rate
       limit: limit for take off
       aim: size of the aim buffer
       self: amplitude of the auto mapping
       agitate: default agitation
       plus: coefficient when in plus mode
       gravity
       testure size
       wind: window of the auto mapping
       ang: angle
       balance,visc: balance coefficient

SKIN: switches body/skin mode
ILLUM: yes/no illum
EXT: switches body/skin mode
ROTY: yes/no roty of ground and sky
PART: yes/no particle
INI: reset
READ
reads parameters from file PARAM
WRITE
writes current parameters in file PARAM

OUT

HEL: help
RING
WAV
RECORD
SYNTH
PLAY
TEST
































Keyboard Shortcuts



: (colon) hides menus.
a: automatic aim.
A: automatic balance of audio amplitude (keep silence during the process)..
C: automatic change of the skin colors.
D: danse (interaction between bodies).
E automatic process.
d activates the distance test.
e displays neural network errors.
G automatic satellite.
g yes/no gravity.
G yes/no mode auto gravity.
h help.
i resets bodies.
I resets parameters.
l yes/no spot light.
M yes/no displ mouse.
m mini menu.
o yes/no ext illum texture skin.
p sky pulsation.
q exit.
r ground and sky rotation.
S yes/no see.
s self texturing.
T yes/no transparency.
t yes/no texture. a name="shortcut_(">
( Sensor_Coe-=.1. a name="shortcut_)">
( Sensor_Coe+=.1. a name="shortcut_+">
+ out of earth gravity.
- back to earth if sound low.
= out of this universe.
* dilatation variations.
; hide sensor coe scale.
, hide mini control.
. maintain bodies on earth. a name="shortcut_$">
$ displaying informations:
       forces: gravity (red), music (green), gravity + music (yellow)
       speed rota vol body (yellow circles)































Launching options

adj: automatic balance of audio amplitude (keep silence during the process), also avaible in interaction by pressing A key.
aud=n: audio sensor with n bodies.
bal: balance.
bod=n: n bodies.
cau=c: multiplier coefficient of audio signal.
cmo=c: multiplier coefficient of mouse signal.
col: shortcut C changing the skin colors.
dan: interaction between bodies (dance).
del=ns: waits ns seconds before calling audio ini (allows chaining several programs).
dis: shortcut d controlling the distances between the bodies.
eff=n: shortcut E with tempo n (500 default).
err: shortcut e displaying the error curves of the neuralk networks.
: short : hidding the menus.
gra: mode auto gravity
joy: mouse as a joystick, see file gravity_aud_joy_*.js.
       move the mouse (down up): increases the sensor value.
       an arrow (green at the bottom, red at the top) through gravity (green), satellite (yellow) and infini (red).
les: like shortcut -.
lig: shortcut l switching from standard light to spot light.
min=n: low amplitude filter.
max=n: high amplitude filter.
mod: MODEL function.
mou=n: sensor mouse with n bodies.
net: NETWORK function.
num=n: first of saved image.
off: shortcut o
poi=n: maintain bodies on earth.
pro=n: for chaining dynasensa_aud_n.js with option tim=t.
rin:
RING function.
rot: ROTY function.
sec=t: the program is killed after t seconds, then launched again (anticipating eventual memories lost).
sel: shortcut s producing the automapping.
sim=tmp.mem: simulation.
sta: dilatation variations.
syn=tmp.mem: image simulation and synthetic music.
sto=name.stock: sensor values in file name.stock (build with Store.func tool.
tex: shortcut t yes/no texture.
tex: shortcut t yes/no texture.
tim=t: the program is killed after t frames, then launched again.
tra: shortcut T enables transparency.
wav: WAV function.
wra=name.wav: write audio.
wri=name.eee: write images.

Examples

"aud=3;foc" launches the program with:
       audio sensor
       3 bodies
       automatic focal

"syn=tmp.mem;bod=3;foc;hai=3;wra=tmp.wav;wri=start/A.jpg;" launches the program with:
       image simulation and synthetic music from file tmp.mem
       3 bodies
       automatic focal
       hairs coefficient 3
       writes audio tmp.wav
       writes images start/A0001.jpg start/A0002.jpg ...
tmp.mem has been written by Sensor program.































Example

Click on gravity_aud_4.js: 4 bodies with audio.
Press : key (colon): menus appear.
Click on MUSIC: files *.js are dsplayed, click on one of them.
Use
( and
): decrease and incresse the audio sensibility.
When the bodies are satellised press + key: out of the earth influence, travle through the galaxy stars and finaly out of our galaxy through the universe.

Program

gravity.func: the program.
#include
body.func: making bodies.
#include sensor0.func: sensors management.