Week 11: Dynamic Mask + Noise + Random Bezier
In Class Task 1: Dynamic Mask
We reviewed masks and this time animated them to create a more dynamic mask over our Paris image.
//Task 1 Dynamic Mask in Shape of Ellipse
PImage img;
PGraphics mask;
float diam;
void setup() {
size(800, 800);
img=loadImage("paris.jpg");
frameRate(10);
}
void draw() {
background(255, 0, 0);
image(img, 0, 0);
//mask
mask=createGraphics(img.width, img.height);
mask.beginDraw();
mask.background(0);
mask.noStroke();
for (int i=0; i<50; i++) {
//mask.fill(255); //the mask is opaque
mask.fill(255, 100); //mask is transparent
diam = random(50, 150);
mask.ellipse(random(mask.width/4, mask.width-120), random(mask.height/10, mask.height-100), diam, diam);
}
mask.endDraw();
//apply mask to the img
img.mask(mask);
}
In Class Lesson 1: Noise
I then learned about noise which is a technique in code that allows you to randomly generate art.
//random lines across the screen
float x, y;
void setup(){
size(600, 400);
background(255);
}
void draw(){
//vertical lines
//x=random(width);
stroke(0, 20);
x=map(noise(0.01*frameCount), 0, 1, 0, width);
line(x, 0, x, height);
//horizontal lines
stroke(0, 20);
y=map(noise(0.01*frameCount+5), 0, 1, 0, height);
line(0, y, width, y);
}
I really enjoyed this use of Noise. The squiggly tube of circles reminds me of either a slinky with a mind of it's own or intestines...strange right?
//noise vs random circles
float x, y;
float t;
void setup(){
size(800,800);
background(0);
}
void draw(){
fill(255);
//ellipse(random(width), random(height), 80,80);
x = map(noise(0.01*t), 0, 1, 0, width);
y = map(noise(0.013*t), 0, 1, 0, height);
ellipse(x, y, 80, 80);
t=t+1;
}
I then played around with color and opacity for this one by learning how to apply noise to rgba (red, green, blue, opacity).
//noise rgba
float x, y, diam;
float t;
float r, g, b, a;
void setup(){
size(800,800);
background(255);
}
void draw(){
fill(r, g, b, a);
//ellipse(random(width), random(height), 80,80);
x = map(noise(0.01*t), 0, 1, 0, width);
y = map(noise(0.013*t), 0, 1, 0, height);
diam = map(noise(0.01*t+10), 0, 1, 20, 100);
//color
r = map(noise(0.01*t+15), 0, 1, 0, 255);
g = map(noise(0.01*t+20), 0, 1, 0, 255);
b = map(noise(0.01*t+25), 0, 1, 0, 255);
a = map(noise(0.01*t+30), 0, 1, 0, 100);
ellipse(x, y, diam, diam);
t=t+1;
}
Using noise, I applied this new code to the dynamic mask mentioned earlier.
//Task 1 Dynamic Mask with Noise
PImage img;
PGraphics mask;
float diam;
void setup() {
size(800, 800);
img=loadImage("paris.jpg");
//frameRate(10);
}
void draw() {
background(255, 0, 0);
image(img, 0, 0);
//mask
mask=createGraphics(img.width, img.height);
mask.beginDraw();
mask.background(0);
mask.noStroke();
for (int i=0; i<150; i++) {
//mask.fill(255); //the mask is opaque
mask.fill(255, 100); //mask is transparent
float x=map(noise(0.01*frameCount, i+5), 0, 1, 0, mask.width);
float y=map(noise(0.01*frameCount+5, i+10), 0, 1, 0, mask.height);
float w=map(noise(0.01*frameCount+10, i+15), 0, 1, 20, 200);
float h=map(noise(0.01*frameCount+15, i+20), 0, 1, 20, 200);
mask.rect(x, y, w, h);
}
mask.endDraw();
//apply mask to the img
img.mask(mask);
}
In Class Lesson 2: Random Bezier
Next I learned about Bezier, a simple way to randomly generate art.
I felt this first Bezier practice looked like loose hair clumped together.
// bezier randomizer
float x1, y1, x2, y2, x3, y3, x4, y4;
void setup(){
size(800,800);
background(255);
}
void draw(){
noFill();
x1=random(width);
x2=random(width);
x3=random(width);
x4=random(width);
y1=random(height);
y2=random(height);
y3=random(height);
y4=random(height);
bezier(x1, y1, x2, y2, x3, y3, x4, y4);
}
We then took it a step further and added noise to the Bezier.
// bezier randomizer
float x1, y1, x2, y2, x3, y3, x4, y4;
void setup() {
size(800, 800);
background(255);
frameRate(100);
}
void draw() {
stroke(#A920E5, 20);
noFill();
x1=map(noise(0.001*frameCount), 0, 1, 0, width);
x2=map(noise(0.001*frameCount+5), 0, 1, 0, width);
x3=map(noise(0.001*frameCount+10), 0, 1, 0, width);
x4=map(noise(0.001*frameCount+15), 0, 1, 0, width);
y1=map(noise(0.001*frameCount+20), 0, 1, 0, height);
y2=map(noise(0.001*frameCount+25), 0, 1, 0, height);
y3=map(noise(0.001*frameCount+30), 0, 1, 0, height);
y4=map(noise(0.001*frameCount+35), 0, 1, 0, height);
bezier(x1, y1, x2, y2, x3, y3, x4, y4);
stroke(#2032E5, 20);
x1=map(noise(0.001*frameCount+50), 0, 1, 0, width);
x2=map(noise(0.001*frameCount+55), 0, 1, 0, width);
x3=map(noise(0.001*frameCount+60), 0, 1, 0, width);
x4=map(noise(0.001*frameCount+65), 0, 1, 0, width);
y1=map(noise(0.001*frameCount+70), 0, 1, 0, height);
y2=map(noise(0.001*frameCount+75), 0, 1, 0, height);
y3=map(noise(0.001*frameCount+80), 0, 1, 0, height);
y4=map(noise(0.001*frameCount+85), 0, 1, 0, height);
bezier(x1, y1, x2, y2, x3, y3, x4, y4);
}
void keyPressed() {
if (key=='s') {
int random_number=int(random(100));
save(random_number+"bezier"+"rob"+".png");
}
}