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+<!DOCTYPE html>
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+<html lang="en">
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+ <head>
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+ <title>three.js webgl - sprites nodes</title>
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+ <meta charset="utf-8">
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+ <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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+ <style>
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+ body {
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+ color: #fff;
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+ font-family:Monospace;
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+ font-size:13px;
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+ margin: 0px;
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+ text-align:center;
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+ overflow: hidden;
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+ }
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+
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+ #info {
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+ color: #fff;
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+ position: absolute;
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+ top: 10px;
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+ width: 100%;
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+ text-align: center;
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+ display:block;
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+ }
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+
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+ a { color: white }
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+ </style>
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+ </head>
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+ <body>
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+
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+ <div id="container"></div>
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+ <div id="info">
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+ <a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - Node-Based Sprites
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+ </div>
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+
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+ <script src="../build/three.js"></script>
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+
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+ <script src='js/geometries/TeapotBufferGeometry.js'></script>
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+ <script src="js/controls/OrbitControls.js"></script>
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+ <script src="js/libs/dat.gui.min.js"></script>
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+
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+ <!-- NodeLibrary -->
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+ <script src="js/nodes/GLNode.js"></script>
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+ <script src="js/nodes/RawNode.js"></script>
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+ <script src="js/nodes/TempNode.js"></script>
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+ <script src="js/nodes/InputNode.js"></script>
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+ <script src="js/nodes/ConstNode.js"></script>
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+ <script src="js/nodes/VarNode.js"></script>
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+ <script src="js/nodes/FunctionNode.js"></script>
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+ <script src="js/nodes/FunctionCallNode.js"></script>
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+ <script src="js/nodes/AttributeNode.js"></script>
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+ <script src="js/nodes/NodeBuilder.js"></script>
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+ <script src="js/nodes/NodeLib.js"></script>
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+ <script src="js/nodes/NodeMaterial.js"></script>
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+
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+ <!-- Accessors -->
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+ <script src="js/nodes/accessors/PositionNode.js"></script>
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+ <script src="js/nodes/accessors/NormalNode.js"></script>
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+ <script src="js/nodes/accessors/UVNode.js"></script>
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+ <script src="js/nodes/accessors/ScreenUVNode.js"></script>
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+ <script src="js/nodes/accessors/ColorsNode.js"></script>
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+ <script src="js/nodes/accessors/CameraNode.js"></script>
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+ <script src="js/nodes/accessors/ReflectNode.js"></script>
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+ <script src="js/nodes/accessors/LightNode.js"></script>
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+
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+ <!-- Inputs -->
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+ <script src="js/nodes/inputs/IntNode.js"></script>
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+ <script src="js/nodes/inputs/FloatNode.js"></script>
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+ <script src="js/nodes/inputs/ColorNode.js"></script>
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+ <script src="js/nodes/inputs/Vector2Node.js"></script>
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+ <script src="js/nodes/inputs/Vector3Node.js"></script>
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+ <script src="js/nodes/inputs/Vector4Node.js"></script>
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+ <script src="js/nodes/inputs/TextureNode.js"></script>
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+ <script src="js/nodes/inputs/Matrix4Node.js"></script>
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+ <script src="js/nodes/inputs/CubeTextureNode.js"></script>
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+
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+ <!-- Math -->
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+ <script src="js/nodes/math/Math1Node.js"></script>
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+ <script src="js/nodes/math/Math2Node.js"></script>
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+ <script src="js/nodes/math/Math3Node.js"></script>
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+ <script src="js/nodes/math/OperatorNode.js"></script>
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+
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+ <!-- Utils -->
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+ <script src="js/nodes/utils/SwitchNode.js"></script>
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+ <script src="js/nodes/utils/JoinNode.js"></script>
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+ <script src="js/nodes/utils/TimerNode.js"></script>
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+ <script src="js/nodes/utils/RoughnessToBlinnExponentNode.js"></script>
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+ <script src="js/nodes/utils/VelocityNode.js"></script>
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+ <script src="js/nodes/utils/LuminanceNode.js"></script>
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+ <script src="js/nodes/utils/ColorAdjustmentNode.js"></script>
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+ <script src="js/nodes/utils/NoiseNode.js"></script>
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+ <script src="js/nodes/utils/ResolutionNode.js"></script>
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+ <script src="js/nodes/utils/BumpNode.js"></script>
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+ <script src="js/nodes/utils/BlurNode.js"></script>
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+ <script src="js/nodes/utils/UVTransformNode.js"></script>
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+
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+ <!-- Sprite Material -->
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+ <script src="js/nodes/materials/SpriteNode.js"></script>
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+ <script src="js/nodes/materials/SpriteNodeMaterial.js"></script>
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+
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+ <script>
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+
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+ var container = document.getElementById( 'container' );
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+
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+ var renderer, scene, camera, clock = new THREE.Clock(), fov = 50;
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+ var plane, sprite1, sprite2, sprite3;
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+ var controls;
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+
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+ window.addEventListener( 'load', init );
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+
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+ function init() {
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+
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+ //
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+ // Renderer / Controls
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+ //
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+
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+ renderer = new THREE.WebGLRenderer( { antialias: true } );
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+ renderer.setPixelRatio( window.devicePixelRatio );
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+ container.appendChild( renderer.domElement );
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+
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+ scene = new THREE.Scene();
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+ scene.fog = new THREE.Fog( 0x0000FF, 0.0, 100 );
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+
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+ camera = new THREE.PerspectiveCamera( fov, window.innerWidth / window.innerHeight, 1, 1000 );
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+ camera.position.z = 50;
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+ camera.target = new THREE.Vector3();
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+
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+ controls = new THREE.OrbitControls( camera, renderer.domElement );
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+ controls.minDistance = 50;
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+ controls.maxDistance = 200;
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+
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+ //
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+ // SpriteNode
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+ //
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+
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+ // use scale to adjuste the real sprite size
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+ plane = new THREE.PlaneBufferGeometry( 1, 1 );
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+
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+ var walkingManTexture = new THREE.TextureLoader().load( "textures/WalkingManSpriteSheet.png" );
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+ walkingManTexture.wrapS = walkingManTexture.wrapT = THREE.RepeatWrapping;
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+
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+ // horizontal sprite-sheet animator
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+
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+ function createHorizontalSpriteSheetNode( hCount, speed ) {
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+
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+ var speed = new THREE.Vector2Node( speed, 0 ); // frame per second
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+ var scale = new THREE.Vector2Node( 1 / hCount, 1 ); // 8 horizontal images in sprite-sheet
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+
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+ var uvTimer = new THREE.OperatorNode(
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+ new THREE.TimerNode(),
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+ speed,
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+ THREE.OperatorNode.MUL
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+ );
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+
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+ var uvIntegerTimer = new THREE.Math1Node(
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+ uvTimer,
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+ THREE.Math1Node.FLOOR
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+ );
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+
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+ var uvFrameOffset = new THREE.OperatorNode(
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+ uvIntegerTimer,
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+ scale,
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+ THREE.OperatorNode.MUL
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+ );
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+
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+ var uvScale = new THREE.OperatorNode(
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+ new THREE.UVNode(),
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+ scale,
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+ THREE.OperatorNode.MUL
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+ );
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+
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+ var uvFrame = new THREE.OperatorNode(
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+ uvScale,
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+ uvFrameOffset,
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+ THREE.OperatorNode.ADD
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+ );
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+
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+ return uvFrame;
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+
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+ }
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+
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+ // sprites
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+
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+ var spriteWidth = 20,
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+ spriteHeight = 20;
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+
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+ scene.add( sprite1 = new THREE.Mesh( plane, new THREE.SpriteNodeMaterial() ) );
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+ sprite1.scale.x = spriteWidth;
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+ sprite1.scale.y = spriteHeight;
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+ sprite1.material.color = new THREE.TextureNode( walkingManTexture );
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+ sprite1.material.color.coord = createHorizontalSpriteSheetNode( 8, 10 );
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+ sprite1.material.build();
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+
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+ scene.add( sprite2 = new THREE.Mesh( plane, new THREE.SpriteNodeMaterial() ) );
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+ sprite2.position.x = 30;
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+ sprite2.scale.x = spriteWidth;
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+ sprite2.scale.y = spriteHeight;
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+ sprite2.material.color = new THREE.TextureNode( walkingManTexture );
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+ sprite2.material.color.coord = createHorizontalSpriteSheetNode( 8, 30 );
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+ sprite2.material.color = new THREE.Math1Node( sprite2.material.color, THREE.Math1Node.INVERT );
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+ sprite2.material.build();
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+
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+ var sineWaveFunction = new THREE.FunctionNode( [
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+ // https://stackoverflow.com/questions/36174431/how-to-make-a-wave-warp-effect-in-shader
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+ "vec2 sineWave(vec2 uv, vec2 phase) {",
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+ // wave distortion
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+ " float x = sin( 25.0*uv.y + 30.0*uv.x + 6.28*phase.x) * 0.01;",
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+ " float y = sin( 25.0*uv.y + 30.0*uv.x + 6.28*phase.y) * 0.03;",
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+ " return vec2(uv.x+x, uv.y+y);",
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+ "}"
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+ ].join( "\n" ) );
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+
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+ scene.add( sprite3 = new THREE.Mesh( plane, new THREE.SpriteNodeMaterial() ) );
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+ sprite3.position.x = - 30;
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+ sprite3.scale.x = spriteWidth;
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+ sprite3.scale.y = spriteHeight;
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+ sprite3.material.fog = true;
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+ sprite3.material.color = new THREE.TextureNode( walkingManTexture );
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+ sprite3.material.color.coord = new THREE.FunctionCallNode( sineWaveFunction, {
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+ "uv": createHorizontalSpriteSheetNode( 8, 0 ),
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+ "phase": new THREE.TimerNode()
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+ } );
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+ sprite3.material.build();
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+
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+ //
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+ // Events
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+ //
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+
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+ window.addEventListener( 'resize', onWindowResize, false );
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+
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+ onWindowResize();
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+ animate();
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+
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+ }
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+
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+ function onWindowResize() {
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+
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+ var width = window.innerWidth, height = window.innerHeight;
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+
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+ camera.aspect = width / height;
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+ camera.updateProjectionMatrix();
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+
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+ renderer.setSize( width, height );
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+
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+ }
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+
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+ function animate() {
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+
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+ var delta = clock.getDelta();
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+
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+ // update material animation and/or gpu calcs (pre-renderer)
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+ sprite1.material.updateFrame( delta );
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+ sprite2.material.updateFrame( delta );
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+ sprite3.material.updateFrame( delta );
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+
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+ // rotate sprite
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+ sprite3.rotation.z -= Math.PI * .005;
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+
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+ renderer.render( scene, camera );
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+
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+ requestAnimationFrame( animate );
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+
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+ }
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+
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+ </script>
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+
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+ </body>
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+</html>
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sunag
