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:
javascript
Output:
Online editor: https://editor.p5js.org/
Environment Setup: https://www.geeksforgeeks.org/javascript/p5-js-soundfile-object-installation-and-methods/
Reference: https://p5js.org/reference/#/p5/lerpColor
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.
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);
}