help with minim & P3D

Core Library Questions

dattasaur..

in Core Library Questions • 7 months ago

I've written a code where I use some data coming from Arduino to control the perspective orientation of a cube & control an audio sample using band pass filters & draw the respective waveform. Now the orientation of cube displaces the waveform. I mean to say when i make changes in the band pass filter & rotate the cube, the waveform goes out of the screen(changes it's position vertically).

I need serious help here. Thanks in advance.

here's the code;

import fullscreen.*;
import processing.serial.*;
import ddf.minim.*;
import ddf.minim.effects.*;
Minim minim;
AudioPlayer player;
BandPass bpf;
FullScreen fs;
Serial port;
String X_data = "";
String Y_data = "";
String data = "";
int index= 0;
int x = 0;
int y = 0;
void setup()
{
size(1300, 700, P3D);
minim = new Minim(this);
String audioFile = selectInput();
fs = new FullScreen(this);
fs.enter();
port = new Serial(this, "COM3", 9600);
port.bufferUntil('.');
player = minim.loadFile(audioFile);
player.loop();
bpf = new BandPass(440, 20, player.sampleRate());
player.addEffect(bpf);
smooth();
}
void draw()
{
lights();
background(0);
//graph
for(int i = 0; i < player.right.size()-1; i++)
{
float x1 = map(i, 0, player.bufferSize(), 0, width);
float x2 = map(i+1, 0, player.bufferSize(), 0, width);
//line(x1, height/4 - player.left.get(i)*50, x1, height/4 - player.left.get(i+1)*50);
line(x1, 3*height/4 - player.right.get(i)*50, x2, 3*height/4 - player.right.get(i+1)*50);
}
// map the blob position to the range [100, 10000], an arbitrary range of passBand frequencies
float passBand = map(x, 0, width, 100, 2000);
bpf.setFreq(passBand);
float bandWidth = map(y, 0, height, 50, 500);
bpf.setBandWidth(bandWidth);
// prints the new values of the coefficients in the console
bpf.printCoeff();
//translation of cube
float cameraY = height/2.0;
float fov = y/float(width) * PI/2;
float cameraZ = cameraY / tan(fov / 2.0);
float aspect = float(width)/float(height);
perspective(fov, aspect, cameraZ/10.0, cameraZ*10.0);
translate(width/2+30, height/2, 0);
rotateX(-PI/6);
rotateY(PI/3 + x/float(height) * PI);
stroke(255, 0, 8, 60);
strokeWeight(3);
noFill();
box(45);
translate(0, 0, -50);
}
void serialEvent (Serial port)
{
data = port.readStringUntil('.');
data = data.substring(0, data.length() - 1);
index = data.indexOf(",");
X_data = data.substring(0, index);
X_data = trim(X_data);
x = int(X_data);
Y_data = data.substring(index+1, data.length());
Y_data = trim(Y_data);
y = int(Y_data);
}
void stop()
{
player.close();
minim.stop();
super.stop();
}

Replies(1)

Chrisir

Re: help with minim & P3D

7 months ago

since nobody answers, let me make a comment

I don't have serial and so on, but afaik you can just call perspective(); to use the standard
perspective.
Both perspectives seem to work parallel within draw()

And I gave the line of the waveform a z-value.

In my example you see both waveform and cube.

Hope this helps.

Greetings, Chrisir

//
//import fullscreen.*;
//import processing.serial.*;
import ddf.minim.*;
import ddf.minim.effects.*;
Minim minim;
AudioPlayer player;
BandPass bpf;
//FullScreen fs;
//Serial port;
String X_data = "";
String Y_data = "";
String data = "";
int index= 0;
int x = 0;
int y = 220;
void setup()
{
size(1300, 700, P3D);
minim = new Minim(this);
String audioFile = selectInput();
//fs = new FullScreen(this);
///fs.enter();
//port = new Serial(this, "COM3", 9600);
// port.bufferUntil('.');
player = minim.loadFile(audioFile);
player.loop();
bpf = new BandPass(440, 20, player.sampleRate());
player.addEffect(bpf);
//smooth();
}
void draw()
{
lights();
background(0);
//
//graph *********************************************************
//camera();
perspective();
stroke(255);
for (int i = 0; i < player.right.size()-1; i++)
{
float x1 = map(i, 0, player.bufferSize(), 0, width);
float x2 = map(i+1, 0, player.bufferSize(), 0, width);
//line(x1, height/4 - player.left.get(i)*50, x1, height/4 - player.left.get(i+1)*50);
line(x1, 3*height/4 - player.right.get(i)*50, -550.0,
x2, 3*height/4 - player.right.get(i+1)*50, -550.0 );
}
// map the blob position to the range [100, 10000], an arbitrary range of passBand frequencies
float passBand = map(x, 0, width, 100, 2000);
bpf.setFreq(passBand);
float bandWidth = map(y, 0, height, 50, 500);
bpf.setBandWidth(bandWidth);
// prints the new values of the coefficients in the console
bpf.printCoeff();
//translation of cube *************************************************************
float cameraY = height/2.0;
float fov = y/float(width) * PI/2;
float cameraZ = cameraY / tan(fov / 2.0);
float aspect = float(width)/float(height);
perspective(fov, aspect, cameraZ/10.0, cameraZ*10.0);
translate(width/2+30, height/2, 0);
rotateX(-PI/6);
rotateY(PI/3 + x/float(height) * PI);
stroke(255, 0, 8, 60);
strokeWeight(3);
noFill();
box(45);
translate(0, 0, -50);
}
//void serialEvent (Serial port)
//{
// data = port.readStringUntil('.');
// data = data.substring(0, data.length() - 1);
//
// index = data.indexOf(",");
//
// X_data = data.substring(0, index);
// X_data = trim(X_data);
// x = int(X_data);
//
// Y_data = data.substring(index+1, data.length());
// Y_data = trim(Y_data);
// y = int(Y_data);
//}
void stop()
{
player.close();
minim.stop();
super.stop();
}

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