Created
January 8, 2018 23:58
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evil triangles
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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 = 120; | |
| float shutterAngle = 1; | |
| boolean recording = false; | |
| void setup() { | |
| size(800, 600, P3D); | |
| smooth(8); | |
| result = new int[width*height][3]; | |
| rectMode(CENTER); | |
| fill(255); | |
| noStroke(); | |
| blendMode(EXCLUSION); | |
| } | |
| float x, y, z, tt; | |
| int N = 12; | |
| float r = 40, sp = 2*r*mn; | |
| PImage f1, f2, f3; | |
| void tri(){ | |
| beginShape(); | |
| for(int i=0; i<3; i++) | |
| vertex(r*sin(TWO_PI*i/3), r*cos(TWO_PI*i/3)); | |
| endShape(); | |
| } | |
| void drawTris(){ | |
| for (int i=-N; i<N; i++) { | |
| for (int j=-N; j<N; j++) { | |
| x = i*sp; | |
| y = j*mn*sp; | |
| if(j%2 != 0) | |
| x += .5*sp; | |
| push(); | |
| translate(x,y); | |
| rotate(HALF_PI); | |
| scale(pow(2,0.5+0.5*cos(TWO_PI*t - 0.01*dist(x,y,0,0)))); | |
| tri(); | |
| pop(); | |
| } | |
| } | |
| } | |
| void draw_() { | |
| blendMode(EXCLUSION); | |
| background(0); | |
| push(); | |
| translate(width/2, height/2); | |
| rotate(-HALF_PI); | |
| drawTris(); | |
| f1 = get(); | |
| background(0); | |
| push(); | |
| scale(1.006); | |
| drawTris(); | |
| pop(); | |
| f2 = get(); | |
| background(0); | |
| push(); | |
| scale(1.012); | |
| drawTris(); | |
| pop(); | |
| f3 = get(); | |
| pop(); | |
| background(0); | |
| loadPixels(); | |
| f1.loadPixels(); | |
| f2.loadPixels(); | |
| f3.loadPixels(); | |
| for(int i=0; i<pixels.length; i++) | |
| pixels[i] = color(20+.9*red(f1.pixels[i]),20+.9*green(f2.pixels[i]),20+.9*blue(f3.pixels[i])); | |
| updatePixels(); | |
| } |
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