Fade effect

SimplyEnvision

Hi there, I'm trying to get my animation to appear smoother, so I thought I'd take the previous frame and paint it with some transparency onto the current frame. I have done this in another animation, and I pretty much copied it onto this one, so I'm doing something wrong and I can't see it. Also, for some reason translate(width/2, height/2); won't work if written in setup(), which I thought was a bit strange. It would make sense to be able to do the translation only once at the beginning, right?

Here's my code so far:

PImage fade;

void setup(){

  size(1280, 720, P3D);
  smooth();


  fade = get(0, 0, width, height);


}

void draw(){  

  background(0);
  tint( 255, 255, 255, 254);
  translate(width/2, height/2);

  image(fade, -width/2, -height/2);
  noTint();


  colorMode(HSB, 100);


  filter.paintCircle(bassDominantFreq, 1);
  filter.paintCircle(midsDominantFreq, 2);
  filter.paintCircle(trebleDominantFreq, 3);

  fade = get(-width/2, -height/2, width/2, height/2);


}

Now, as far as I understand, the coordinates should be correct: top left corner would be -width/2, -height/2, and lower right corner would be width/2, height/2.

Any ideas?

TfGuy44

Doesn't run. Error on line 27: Can't find anything named filter.

SimplyEnvision

Ok, I tried to clear unrelated things off the code to make it easier to read. This is it exactly how it is when I run it:

import ddf.minim.analysis.*;
import ddf.minim.*;

Minim minim;
AudioInput in;
FFT fft;
BeatDetect beat;
Filter filter;
FreqAndNote freqAndNote;
FreqAndColour freqAndColour;

int w;
int time = 0;
int radius = 0; 

int bass = 300;
int mids = 1000;
int treble = 4000;

float [][] bassArray;
float [][] bassDominantFreq;
float [][] midsArray;
float [][] midsDominantFreq;
float [][] trebleArray;
float [][] trebleDominantFreq;

PImage fade;




void setup(){

  size(1280, 720, P3D);
  smooth();

  minim = new Minim(this);
  in = minim.getLineIn(Minim.STEREO, 512);
  fft = new FFT(in.bufferSize(), in.sampleRate());
  fft.logAverages(60, 7);

  w = width/fft.avgSize();
  strokeWeight(w);
  strokeCap(SQUARE);  

  filter = new Filter();
  freqAndNote = new FreqAndNote();
  freqAndColour = new FreqAndColour();

  fade = get(0, 0, width, height);
  //fade = get(-width/2, -height/2, width/2, height/2); 

  // A beat detection object song SOUND_ENERGY mode with a sensitivity of 10 milliseconds
  beat = new BeatDetect();




}

void draw(){  


  beat.detect(in.mix);

  background(0);
  tint( 255, 255, 255, 254);
  translate(width/2, height/2);

  image(fade, -width/2, -height/2);
  noTint();


  fft.forward(in.mix);

  filter.run(fft);

  colorMode(HSB, 100);

  bassArray = filter.filter(0, bass, filter.fftArray);
  bassDominantFreq = filter.dominantFreq(bassArray);
  midsArray = filter.filter(bass, mids, filter.fftArray);
  midsDominantFreq = filter.dominantFreq(midsArray);
  trebleArray = filter.filter(mids, treble, filter.fftArray);
  trebleDominantFreq = filter.dominantFreq(trebleArray);


  filter.paintCircle(bassDominantFreq, 1);
  filter.paintCircle(midsDominantFreq, 2);
  filter.paintCircle(trebleDominantFreq, 3);
  time--;

  fade = get(-width/2, -height/2, width/2, height/2);



}

I also wrote other classes, example Filter, but I think they are unrelated to the issue.

SimplyEnvision

Double posted by accident.