p5.js noFill() Function

The noFill() function is used to disable the filling geometry. If noStroke() and noFill() function are called simultaneously then nothing will be drawn on the screen. Syntax:

noFill()

Parameters: This function does not accept any parameter. Below examples illustrate the noFill() function in p5.js: Example 1:

javascript

function setup() { 
    
    // Create Canvas of given size 
    createCanvas(400, 300); 
} 

function draw() { 
    
    // Set the background color 
    background(220); 
    
    // Use fill() function to fill color
    fill('green')
    // Draw a line 
    rect(50, 50, 150, 150); 
    
    // Use noFill() function
    noFill();
  
    // Draw a line 
    rect(100, 100, 150, 150); 
}

Output:

Example 2:

javascript

function setup() { 
    
    // Create Canvas of given size 
    createCanvas(400, 300); 
} 

function draw() { 
    
    // Set the background color 
    background(220); 
    
    // Use noFill() function
    noFill();
    
    // Draw a line 
    circle(140, 100, 150);
    
    // Use fill() function to fill color
    fill('green')
    // Draw a line 
    circle(240, 100, 150); 
}

Output:

Reference: https://p5js.org/reference/#/p5/nofill

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