Created
April 25, 2018 13:14
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twisting lines
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| int[][] result; | |
| float t, c; | |
| float ease(float p) { | |
| return 3*p*p - 2*p*p*p; | |
| } | |
| float ease(float p, float g) { | |
| if (p < 0.5) | |
| return 0.5 * pow(2*p, g); | |
| else | |
| return 1 - 0.5 * pow(2*(1 - p), g); | |
| } | |
| float mn = .5*sqrt(3), ia = atan(sqrt(.5)); | |
| void push() { | |
| pushMatrix(); | |
| pushStyle(); | |
| } | |
| void pop(){ | |
| popStyle(); | |
| popMatrix(); | |
| } | |
| float c01(float g){ | |
| return constrain(g,0,1); | |
| } | |
| void draw() { | |
| if(!recording){ | |
| t = mouseX*1.0/width; | |
| c = mouseY*1.0/height; | |
| if(mousePressed) | |
| println(c); | |
| draw_(); | |
| } | |
| else { | |
| for (int i=0; i<width*height; i++) | |
| for (int a=0; a<3; a++) | |
| result[i][a] = 0; | |
| c = 0; | |
| for (int sa=0; sa<samplesPerFrame; sa++) { | |
| t = map(frameCount-1 + sa*shutterAngle/samplesPerFrame, 0, numFrames, 0, 1); | |
| draw_(); | |
| loadPixels(); | |
| for (int i=0; i<pixels.length; i++) { | |
| result[i][0] += pixels[i] >> 16 & 0xff; | |
| result[i][1] += pixels[i] >> 8 & 0xff; | |
| result[i][2] += pixels[i] & 0xff; | |
| } | |
| } | |
| loadPixels(); | |
| for (int i=0; i<pixels.length; i++) | |
| pixels[i] = 0xff << 24 | | |
| int(result[i][0]*1.0/samplesPerFrame) << 16 | | |
| int(result[i][1]*1.0/samplesPerFrame) << 8 | | |
| int(result[i][2]*1.0/samplesPerFrame); | |
| updatePixels(); | |
| saveFrame("f###.gif"); | |
| if (frameCount==numFrames) | |
| exit(); | |
| } | |
| } | |
| ////////////////////////////////////////////////////////////////////////////// | |
| int samplesPerFrame = 8; | |
| int numFrames = 500; | |
| float shutterAngle = .5; | |
| boolean recording = false; | |
| void setup() { | |
| size(750,750,P3D); | |
| smooth(8); | |
| result = new int[width*height][3]; | |
| rectMode(CENTER); | |
| stroke(0); | |
| noFill(); | |
| strokeWeight(4); | |
| } | |
| float x, y, z, tt; | |
| int N = 40; | |
| float l = 500; | |
| PImage f1, f2; | |
| float sp = 72, h = 220; | |
| color cb = color(250); | |
| void thing(){ | |
| for(int i=0; i<N; i++){ | |
| y = h*sin(2.5*TWO_PI*t - .3*i); | |
| z = -sp*i - 10; | |
| strokeWeight(9*exp(.0003*z)); | |
| stroke(0,255*exp(.001*z)); | |
| push(); | |
| rotate(.075*i - PI*t); | |
| translate(0,y,0); | |
| line(-l/2,0,z,l/2,0,z); | |
| pop(); | |
| } | |
| } | |
| void draw_() { | |
| background(cb); | |
| push(); | |
| translate(width/2, height/2); | |
| thing(); | |
| pop(); | |
| f1 = get(); | |
| background(cb); | |
| push(); | |
| translate(width/2, height/2); | |
| scale(1.005,1.01,1); | |
| thing(); | |
| pop(); | |
| f2 = get(); | |
| background(cb); | |
| push(); | |
| translate(width/2, height/2); | |
| scale(1.01,1.02,1); | |
| thing(); | |
| pop(); | |
| loadPixels(); | |
| f1.loadPixels(); | |
| f2.loadPixels(); | |
| for(int i=0; i<pixels.length; i++) | |
| pixels[i] = color(red(f1.pixels[i]),green(f2.pixels[i]),blue(pixels[i])); | |
| updatePixels(); | |
| } |
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