The noLights() function in p5.js is used to remove all lights in the sketch for the materials that would be rendered after this function. Any calls to light functions made after this would again re-enable the lights in the sketch.
Syntax:
noLights()
Parameters: This function does not accept any parameters.
Below examples illustrates the noLights() function in p5.js:
Example 1:
javascript
let newFont; let nolightsEnable = false; function preload() { newFont = loadFont('fonts/Montserrat.otf'); } function setup() { createCanvas(600, 300, WEBGL); textFont(newFont, 18); nolightsEnableCheck = createCheckbox( "Enable noLights", false); nolightsEnableCheck.position(20, 60); // Toggle default light nolightsEnableCheck.changed(() => { nolightsEnable = !nolightsEnable; }); } function draw() { background("green"); text("Click on the checkbox to toggle the " + "noLights() function.", -285, -125); noStroke(); // Ambient light with red color ambientLight('red'); // First sphere in the sketch translate(-100, 0, 0); sphere(50); translate(100, 0, 0); // If checkbox is enabled if (nolightsEnable) { // Disable all lights after this noLights(); text("Lights disabled for second" + " sphere", -285, 125); } else { text("Lights enabled for second" + " sphere", -285, 125); } // Second sphere in the sketch translate(100, 0, 0); sphere(50); } |
Output:
Example 2:
javascript
let newFont; let nolightsEnable = false; function preload() { newFont = loadFont('fonts/Montserrat.otf'); } function setup() { createCanvas(600, 300, WEBGL); textFont(newFont, 18); nolightsEnableCheck = createCheckbox( "Enable noLights", false); nolightsEnableCheck.position(20, 60); // Toggle default light nolightsEnableCheck.changed(() => { nolightsEnable = !nolightsEnable; }); } function draw() { background("green"); text("Click on the checkbox to toggle the" + " noLights() function.", -285, -125); noStroke(); // Ambient light with red color ambientLight('red'); // First sphere in the sketch translate(-100, 0, 0); sphere(50); translate(100, 0, 0); // If checkbox is enabled if (nolightsEnable) { // Disable all lights after this noLights(); text("Red ambient light disabled for" + " second sphere", -285, 125); } else { text("Red ambient light enabled for" + " second sphere", -285, 125); } ambientLight('blue'); // Second sphere in the sketch translate(100, 0, 0); sphere(50); } |
Output:
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/noLights
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!
