13-mesh-phong-material.html


<!DOCTYPE html>
<html>
<head>
    <title>three.js webgl - MeshPhongMaterial</title>
    <meta charset="utf-8">
    <script src="../frameworks/three.min.js"></script>
    <script src="../frameworks/dat.gui.min.js"></script>
    <script src='material.js'></script>
    <style>
        body {
            margin: 0;
            overflow: hidden;
        }
    </style>
</head>
<body>
        <script>

            var gui = new dat.GUI();
            var scene = new THREE.Scene();
            var camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 50 );
            camera.position.z = 30;

            var renderer = new THREE.WebGLRenderer( );
            renderer.setPixelRatio( window.devicePixelRatio );
            renderer.setSize( window.innerWidth, window.innerHeight );
            renderer.setClearColor( 0x000000 );
            document.body.appendChild( renderer.domElement );

            var ambientLight = new THREE.AmbientLight( 0x000000 );
            scene.add( ambientLight );

            var lights = [];
            lights[ 0 ] = new THREE.PointLight( 0xffffff, 1, 0 );
            lights[ 1 ] = new THREE.PointLight( 0xffffff, 1, 0 );
            lights[ 2 ] = new THREE.PointLight( 0xffffff, 1, 0 );

            lights[ 0 ].position.set( 0, 200, 0 );
            lights[ 1 ].position.set( 100, 200, 100 );
            lights[ 2 ].position.set( - 100, - 200, - 100 );

            scene.add( lights[ 0 ] );
            scene.add( lights[ 1 ] );
            scene.add( lights[ 2 ] );

            guiScene( gui, scene, camera );

            var geometry = new THREE.TorusKnotGeometry( 10, 3, 100, 16 );
            var mesh = new THREE.Mesh( geometry );

            generateVertexColors( geometry );

            mesh.material = chooseMaterial ( gui, mesh, geometry ,"MeshPhongMaterial");

            generateMorphTargets( mesh, geometry );

            scene.add( mesh );

            var prevFog = false;

            var render = function () {

                requestAnimationFrame( render );

                var time = Date.now() * 0.001;

                mesh.rotation.x += 0.005;
                mesh.rotation.y += 0.005;

                if ( prevFog !== scene.fog ) {

                    mesh.material.needsUpdate = true;
                    prevFog = scene.fog;

                }

                if ( mesh.morphTargetInfluences ) {

                    mesh.morphTargetInfluences[ 0 ] = ( 1 + Math.sin( 4 * time ) ) / 2;

                }

                renderer.render( scene, camera );

            };

            window.addEventListener( 'resize', function () {

                camera.aspect = window.innerWidth / window.innerHeight;
                camera.updateProjectionMatrix();

                renderer.setSize( window.innerWidth, window.innerHeight );

            }, false );

            render();

        </script>
                
    </body>
</html>

material.js


var constants = {

	combine: {

		"THREE.MultiplyOperation" : THREE.MultiplyOperation,
		"THREE.MixOperation" : THREE.MixOperation,
		"THREE.AddOperation" : THREE.AddOperation

	},

	side : {

		"THREE.FrontSide" : THREE.FrontSide,
		"THREE.BackSide" : THREE.BackSide,
		"THREE.DoubleSide" : THREE.DoubleSide

	},

	shading : {

		"THREE.FlatShading" : THREE.FlatShading,
		"THREE.SmoothShading" : THREE.SmoothShading

	},

	colors : {

		"THREE.NoColors" : THREE.NoColors,
		"THREE.FaceColors" : THREE.FaceColors,
		"THREE.VertexColors" : THREE.VertexColors

	}

}

function generateVertexColors ( geometry ) {

	for ( var i=0, il = geometry.faces.length; i < il; i++ ) {

		geometry.faces[i].vertexColors.push( new THREE.Color().setHSL(
			i / il * Math.random(),
			0.5,
			0.5
		) );
		geometry.faces[i].vertexColors.push( new THREE.Color().setHSL(
			i / il * Math.random(),
			0.5,
			0.5
		) );
		geometry.faces[i].vertexColors.push( new THREE.Color().setHSL(
			i / il * Math.random(),
			0.5,
			0.5
		) );

		geometry.faces[i].color = new THREE.Color().setHSL(
			i / il * Math.random(),
			0.5,
			0.5
		);

	}

}

function generateMorphTargets ( mesh, geometry ) {

	var vertices = [], scale;

	for ( var i = 0; i < geometry.vertices.length; i++ ) {

		vertices.push( geometry.vertices[ i ].clone() );

		scale = 1 + Math.random() * 0.3;

		vertices[ vertices.length - 1 ].x *= scale;
		vertices[ vertices.length - 1 ].y *= scale;
		vertices[ vertices.length - 1 ].z *= scale;

	}

	geometry.morphTargets.push( { name: "target1", vertices: vertices } );

	geometry.update

}

function handleColorChange ( color ) {

	return function ( value ){

		if (typeof value === "string") {

			value = value.replace('#', '0x');

		}

		color.setHex( value );

    };

}

function needsUpdate ( material, geometry ) {

	return function () {

		material.shading = +material.shading; //Ensure number
		material.vertexColors = +material.vertexColors; //Ensure number
		material.side = +material.side; //Ensure number
		material.needsUpdate = true;
		geometry.verticesNeedUpdate = true;
		geometry.normalsNeedUpdate = true;
		geometry.colorsNeedUpdate = true;

	};

};

function updateMorphs ( torus, material ) {

	return function () {

		torus.updateMorphTargets();
		material.needsUpdate = true;

	};

}

function updateTexture ( material, materialKey, textures ) {

	return function ( key ) {

		material[materialKey] = textures[key];
		material.needsUpdate = true;

	};

}

function guiScene ( gui, scene ) {

	var folder = gui.addFolder('Scene');

	var data = {
		background : "#000000",
		"ambient light" : ambientLight.color.getHex()
	}

	var color = new THREE.Color();
	var colorConvert = handleColorChange( color );

	folder.addColor( data, "background" ).onChange( function ( value ) {

		colorConvert( value );

		renderer.setClearColor( color.getHex() );

	} );

	folder.addColor( data, "ambient light" ).onChange( handleColorChange( ambientLight.color ) )

	guiSceneFog( folder, scene );

}

function guiSceneFog ( folder, scene ) {

	var fogFolder = folder.addFolder('scene.fog');

	var fog = new THREE.Fog( 0x3f7b9d, 0, 60 );

	var data = {
		fog : {
			"THREE.Fog()" : false,
			"scene.fog.color" : fog.color.getHex()
		}
	};

	fogFolder.add( data.fog, 'THREE.Fog()' ).onChange( function ( useFog ) {

		if ( useFog ) {

			scene.fog = fog;

		} else {

			scene.fog = null;

		}

	} );

	fogFolder.addColor( data.fog, 'scene.fog.color').onChange( handleColorChange( fog.color ) );

}

function guiMaterial ( gui, mesh, material, geometry ) {

	var folder = gui.addFolder('THREE.Material');

	folder.add( material, 'transparent' );
	folder.add( material, 'opacity', 0, 1 );
	folder.add( material, 'depthTest' );
	folder.add( material, 'depthWrite' );
	folder.add( material, 'alphaTest', 0, 1 );
	folder.add( material, 'visible' );
	folder.add( material, 'side', constants.side ).onChange( needsUpdate( material, geometry ) );

}

function guiMeshBasicMaterial ( gui, mesh, material, geometry ) {

	var data = {
		color : material.color.getHex(),

	};

	var folder = gui.addFolder('THREE.MeshBasicMaterial');

	folder.addColor( data, 'color' ).onChange( handleColorChange( material.color ) );
	folder.add( material, 'wireframe' );
	folder.add( material, 'wireframeLinewidth', 0, 10 );
	folder.add( material, 'shading', constants.shading);
	folder.add( material, 'vertexColors', constants.colors).onChange( needsUpdate( material, geometry ) );
	folder.add( material, 'fog' );

	folder.add( material, 'morphTargets' ).onChange( updateMorphs( mesh, material ) );
	folder.add( material, 'combine', constants.combine ).onChange( updateMorphs( mesh, material ) );
	folder.add( material, 'reflectivity', 0, 1 );
	folder.add( material, 'refractionRatio', 0, 1 );
}

function guiMeshDepthMaterial ( gui, mesh, material, geometry ) {

	var folder = gui.addFolder('THREE.MeshDepthMaterial');

	folder.add( material, 'wireframe' );
	folder.add( material, 'wireframeLinewidth', 0, 10 );
	folder.add( material, 'morphTargets' ).onChange( updateMorphs( mesh, material ) );

}

function guiMeshNormalMaterial ( gui, mesh, material, geometry ) {

	var folder = gui.addFolder('THREE.MeshNormalMaterial');

	folder.add( material, 'wireframe' );
	folder.add( material, 'wireframeLinewidth', 0, 10 );
	folder.add( material, 'morphTargets' ).onChange( updateMorphs( mesh, material ) );

}

function guiLineBasicMaterial ( gui, mesh, material, geometry ) {

	var data = {
		color : material.color.getHex()
	};

	var folder = gui.addFolder('THREE.LineBasicMaterial');

	folder.addColor( data, 'color' ).onChange( handleColorChange( material.color ) );
	folder.add( material, 'linewidth', 0, 10 );
	folder.add( material, 'linecap', ["butt", "round", "square"] );
	folder.add( material, 'linejoin', ["round", "bevel", "miter"] );
	folder.add( material, 'vertexColors', constants.colors).onChange( needsUpdate( material, geometry ) );
	folder.add( material, 'fog' );

}

function guiMeshLambertMaterial ( gui, mesh, material, geometry ) {

	var data = {
		color : material.color.getHex(),
		emissive : material.emissive.getHex()
		
	};

	var envObj = {};

	var folder = gui.addFolder('THREE.MeshLambertMaterial');

	folder.addColor( data, 'color' ).onChange( handleColorChange( material.color ) );
	folder.addColor( data, 'emissive' ).onChange( handleColorChange( material.emissive ) );

	folder.add( material, 'wireframe' );
	folder.add( material, 'wireframeLinewidth', 0, 10 );
	folder.add( material, 'vertexColors', constants.colors ).onChange( needsUpdate( material, geometry ) );
	folder.add( material, 'fog' );

	folder.add( material, 'morphTargets' ).onChange( updateMorphs( mesh, material ) );
	folder.add( material, 'combine', constants.combine ).onChange( updateMorphs( mesh, material ) );
	folder.add( material, 'reflectivity', 0, 1 );
	folder.add( material, 'refractionRatio', 0, 1 );

}

function guiMeshPhongMaterial ( gui, mesh, material, geometry ) {

	var data = {
		color : material.color.getHex(),
		emissive : material.emissive.getHex(),
		specular : material.specular.getHex(),
	};

	var folder = gui.addFolder('THREE.MeshPhongMaterial');

	folder.addColor( data, 'color' ).onChange( handleColorChange( material.color ) );
	folder.addColor( data, 'emissive' ).onChange( handleColorChange( material.emissive ) );
	folder.addColor( data, 'specular' ).onChange( handleColorChange( material.specular ) );

	folder.add( material, 'shininess', 0, 100);
	folder.add( material, 'shading', constants.shading).onChange( needsUpdate( material, geometry ) );
	folder.add( material, 'wireframe' );
	folder.add( material, 'wireframeLinewidth', 0, 10 );
	folder.add( material, 'vertexColors', constants.colors);
	folder.add( material, 'fog' );


}

function guiMeshStandardMaterial ( gui, mesh, material, geometry ) {

	var data = {
		color : material.color.getHex(),
		emissive : material.emissive.getHex(),
	};

	var folder = gui.addFolder('THREE.MeshStandardMaterial');

	folder.addColor( data, 'color' ).onChange( handleColorChange( material.color ) );
	folder.addColor( data, 'emissive' ).onChange( handleColorChange( material.emissive ) );

	folder.add( material, 'roughness', 0, 1 );
	folder.add( material, 'metalness', 0, 1 );
	folder.add( material, 'shading', constants.shading).onChange( needsUpdate( material, geometry ) );
	folder.add( material, 'wireframe' );
	folder.add( material, 'wireframeLinewidth', 0, 10 );
	folder.add( material, 'vertexColors', constants.colors);
	folder.add( material, 'fog' );

}

function chooseMaterial ( gui, mesh, geometry , selectedMaterial ) {

	
	var material;

	switch (selectedMaterial) {

	case "MeshBasicMaterial" :

		material = new THREE.MeshBasicMaterial({color: 0x2194CE});
		guiMaterial( gui, mesh, material, geometry );
		guiMeshBasicMaterial( gui, mesh, material, geometry );

		return material;

		break;

	case "MeshLambertMaterial" :

		material = new THREE.MeshLambertMaterial({color: 0x2194CE});
		guiMaterial( gui, mesh, material, geometry );
		guiMeshLambertMaterial( gui, mesh, material, geometry );

		return material;

		break;

	case "MeshPhongMaterial" :

		material = new THREE.MeshPhongMaterial({color: 0x2194CE});
		guiMaterial( gui, mesh, material, geometry );
		guiMeshPhongMaterial( gui, mesh, material, geometry );

		return material;

		break;

	case "MeshStandardMaterial" :

		material = new THREE.MeshStandardMaterial({color: 0x2194CE});
		guiMaterial( gui, mesh, material, geometry );
		guiMeshStandardMaterial( gui, mesh, material, geometry );

		return material;

		break;

	case "MeshDepthMaterial" :

		material = new THREE.MeshDepthMaterial({color: 0x2194CE});
		guiMaterial( gui, mesh, material, geometry );
		guiMeshDepthMaterial( gui, mesh, material, geometry );

		return material;

		break;

	case "MeshNormalMaterial" :

		material = new THREE.MeshNormalMaterial();
		guiMaterial( gui, mesh, material, geometry );
		guiMeshNormalMaterial( gui, mesh, material, geometry );

		return material;

		break;

	case "MultiMaterial" :
		var materials=[];

		materials.push( new THREE.MeshLambertMaterial( { color: 0xdddddd, shading: THREE.FlatShading } ) );
		materials.push( new THREE.MeshPhongMaterial( { color: 0xdddddd, specular: 0x009900, shininess: 30, shading: THREE.FlatShading } ) );
		materials.push( new THREE.MeshNormalMaterial( ) );
		materials.push( new THREE.MeshBasicMaterial( { color: 0xffaa00, transparent: true, blending: THREE.AdditiveBlending } ) );
		materials.push( new THREE.MeshLambertMaterial( { color: 0xdddddd, shading: THREE.SmoothShading } ) );
		materials.push( new THREE.MeshNormalMaterial( { shading: THREE.SmoothShading } ) );
		materials.push( new THREE.MeshBasicMaterial( { color: 0xffaa00, wireframe: true } ) );
		materials.push( new THREE.MeshDepthMaterial() );
		materials.push( new THREE.MeshLambertMaterial( { color: 0x666666, emissive: 0xff0000, shading: THREE.SmoothShading } ) );
		materials.push( new THREE.MeshPhongMaterial( { color: 0x000000, specular: 0x666666, emissive: 0xff0000, shininess: 10, shading: THREE.SmoothShading, opacity: 0.9, transparent: true } ) );
				
		material = new THREE.MultiMaterial( materials );
		

		for ( var i = 0, l = geometry.faces.length; i < l; i ++ ) {
			var face = geometry.faces[ i ];
			face.materialIndex = Math.floor( Math.random() * materials.length );
		}

		geometry.sortFacesByMaterialIndex();

		return material;

		break;
		
	case "LineBasicMaterial" :

		material = new THREE.LineBasicMaterial({color: 0x2194CE});
		guiMaterial( gui, mesh, material, geometry );
		guiLineBasicMaterial( gui, mesh, material, geometry );

		return material;

		break;
	}

}