p5.js setGreen() Function

p5.js setRed() Function

Last Updated : 07 Oct, 2024

The setRed() function in p5.js is used to set the red color value in RGB color mode. It sets the first value of RGB format.

Syntax:

setRed(red)

Parameters:

red: This parameter stores the new red value.

Example 1: This example uses setRed() function to set red value of RGB color format.

javascript

/* declare a variable to 
 store the value of color*/
let backgroundColor;

function setup() {
    /* initialise the variable
     with RGB color format*/
    backgroundColor = color(0, 50, 150);
}

function draw() {
    // Create Canvas of a given size

    createCanvas(500, 500);

    // Use of setRed function
    backgroundColor.setRed(
      0 + 128 * cos(millis() / 1000));

    /* Pass the initialized 
      variable to background function*/
    background(backgroundColor);

    // Set text size
    textSize(30);

    // Set text color
    fill("white");

    // set text
    text("GeeksForGeeks", 125, 125);

}

Output:

Example 2: This example uses setRed() function to set red value of RGB color format.

javascript

/* declare a variable to
store the value of color*/
let backgroundColor;

function setup() {
    /* initialise the variable
    with RGB color format*/
    backgroundColor = color(0, 0, 0);
}

function draw() {
    // Create Canvas of a given size

    createCanvas(540, 500);

    /* Use of setRed function 
    and initialise it to maximum*/
    backgroundColor.setRed(255);

    /* Pass the initialised
    variable to background function*/
    background(backgroundColor);

    // Set text size
    textSize(30);

    // Set text color
    fill("white");

    // set text
    text("GeeksForGeeks\n ", 135, 125);
    text(
      "A Computer Science Portal For Geeks",
      10, 155);

}

Output:

p5.js setGreen() Function

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