Thursday, October 9, 2025
HomeLanguagesJavascriptp5.js lerpColor() Function

p5.js lerpColor() Function

The lerpColor() function is used to interpolate two colors to find a third color between them. The amount of interpolation between the two colors can be set using the amt parameters. The color interpolation depends on the current color mode.

Syntax:

lerpColor(c1, c2, amt)

Parameters: This function accepts three parameters as mentioned above and described below:

  • c1: It is a p5.Color which represents the first color from which the final color will be interpolated.
  • c2: It is a p5.Color which represents the second color to which the final color will be interpolated.
  • amt: It is a number between 0 and 1 which determines which color will be used more for the interpolation. A value near 0.1 would prefer the first color more and a value near 0.9 would prefer the second color for interpolation.

Return Value: It returns a p5.Color element with the interpolated color.

The example below illustrate the lerpColor() function in p5.js:

Example:




function setup() {
  createCanvas(500, 350);
  textSize(18);
    
  text("From Color", 20, 20);
  fromColor = color("red");
  
  text("Lerped Color", 150, 20);
  
  text("To Color", 300, 20);
  toColor = color("blue");
    
  text("Adjust this slider to change the"+
             " amount of lerping", 20,  200)
  alphaSlider = createSlider(0, 100, 50);
  alphaSlider.position(20, 220);
  alphaSlider.style('width', '250px');
}
  
function draw() {
  lerpedColor = lerpColor(fromColor, toColor, alphaSlider.value() / 100);
  
  fill(fromColor);
  rect(30, 30, 50, 100);
  
  fill(lerpedColor);
  rect(170, 30, 50, 100);
  
  fill(toColor);
  rect(310, 30, 50, 100);
}


Output:
lerping-slider

Online editor: https://editor.p5js.org/

Environment Setup: https://www.geeksforgeeks.org/p5-js-soundfile-object-installation-and-methods/

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

Whether you’re preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, neveropen Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we’ve already empowered, and we’re here to do the same for you. Don’t miss out – check it out now!
RELATED ARTICLES

Most Popular

Dominic
32342 POSTS0 COMMENTS
Milvus
87 POSTS0 COMMENTS
Nango Kala
6712 POSTS0 COMMENTS
Nicole Veronica
11875 POSTS0 COMMENTS
Nokonwaba Nkukhwana
11937 POSTS0 COMMENTS
Shaida Kate Naidoo
6833 POSTS0 COMMENTS
Ted Musemwa
7092 POSTS0 COMMENTS
Thapelo Manthata
6786 POSTS0 COMMENTS
Umr Jansen
6789 POSTS0 COMMENTS