Currently, I am delving into the realm of three.js.
To enhance my understanding, I decided to practice with an example. However, the shadow effects on the objects seem off or rather unusual.
https://i.sstatic.net/pfg6E.jpg
The expected outcome should resemble the one shown in this image (taken from an older tutorial):
https://i.sstatic.net/Ewhpr.jpg
Below is the code snippet:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/89/three.js"></script>
<div id="WebGL-salida">
</div>
<script type="text/javascript">
$(function() {
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
var renderer = new THREE.WebGLRenderer();
var color = new THREE.Color("rgb(200, 250, 250)");
renderer.setClearColor(new THREE.Color(color));
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.shadowMap.enabled = true;
renderer.shadowMap.type = THREE.PCFSoftShadowMap; // default THREE.PCFShadowMap
var ejesAyuda = new THREE.AxesHelper(20);
scene.add(ejesAyuda);
var planeGeometry = new THREE.PlaneGeometry(60, 20);
var planeMaterial = new THREE.MeshLambertMaterial({
color: 0xcccccc
});
var plane = new THREE.Mesh(planeGeometry, planeMaterial);
plane.receiveShadow = true;
plane.rotation.x = -0.5 * Math.PI;
plane.position.x = 15;
plane.position.y = 0;
plane.position.z = 0;
scene.add(plane);
var cubeGeometry = new THREE.CubeGeometry(4, 4, 4);
var cubeMaterial = new THREE.MeshLambertMaterial({
color: 0xff0000
});
var cube = new THREE.Mesh(cubeGeometry, cubeMaterial);
cube.castShadow = true;
cube.position.x = -4;
cube.position.y = 3;
cube.position.z = 0;
scene.add(cube);
var sphereGeometry = new THREE.SphereGeometry(4, 20, 20);
var sphereMaterial = new THREE.MeshLambertMaterial({
color: 0x7777ff
});
var sphere = new THREE.Mesh(sphereGeometry, sphereMaterial);
sphere.castShadow = true;
sphere.position.x = 20;
sphere.position.y = 4;
sphere.position.z = 2;
scene.add(sphere);
camera.position.x = -30;
camera.position.y = 40;
camera.position.z = 30;
camera.lookAt(scene.position);
var spotLight = new THREE.SpotLight(0xffffff, 0.8);
spotLight.position.set(-40, 60, -10);
spotLight.castShadow = true;
scene.add(spotLight);
$("#WebGL-salida").append(renderer.domElement);
renderer.render(scene, camera);
});
</script>If you have any recommendations for a helpful three.js tutorial or course suitable for beginners (even if it's not free), please share them. As a web developer eager to explore the world of WebGL, your guidance would be immensely valuable!