mirror of
https://github.com/DanielnetoDotCom/YouPHPTube
synced 2025-10-04 18:29:39 +02:00
This commit is contained in:
Daniel Neto
parent
f0f62670c5
commit
7e26256cac
4563 changed files with 1246712 additions and 17558 deletions
453
node_modules/three/examples/js/animation/CCDIKSolver.js
generated
vendored
Normal file
453
node_modules/three/examples/js/animation/CCDIKSolver.js
generated
vendored
Normal file
|
|
@ -0,0 +1,453 @@
|
|||
/**
|
||||
* CCD Algorithm
|
||||
* - https://sites.google.com/site/auraliusproject/ccd-algorithm
|
||||
*
|
||||
* // ik parameter example
|
||||
* //
|
||||
* // target, effector, index in links are bone index in skeleton.bones.
|
||||
* // the bones relation should be
|
||||
* // <-- parent child -->
|
||||
* // links[ n ], links[ n - 1 ], ..., links[ 0 ], effector
|
||||
* iks = [ {
|
||||
* target: 1,
|
||||
* effector: 2,
|
||||
* links: [ { index: 5, limitation: new THREE.Vector3( 1, 0, 0 ) }, { index: 4, enabled: false }, { index : 3 } ],
|
||||
* iteration: 10,
|
||||
* minAngle: 0.0,
|
||||
* maxAngle: 1.0,
|
||||
* } ];
|
||||
*/
|
||||
|
||||
THREE.CCDIKSolver = ( function () {
|
||||
|
||||
/**
|
||||
* @param {THREE.SkinnedMesh} mesh
|
||||
* @param {Array<Object>} iks
|
||||
*/
|
||||
function CCDIKSolver( mesh, iks ) {
|
||||
|
||||
this.mesh = mesh;
|
||||
this.iks = iks || [];
|
||||
|
||||
this._valid();
|
||||
|
||||
}
|
||||
|
||||
CCDIKSolver.prototype = {
|
||||
|
||||
constructor: CCDIKSolver,
|
||||
|
||||
/**
|
||||
* Update IK bones.
|
||||
*
|
||||
* @return {THREE.CCDIKSolver}
|
||||
*/
|
||||
update: function () {
|
||||
|
||||
var q = new THREE.Quaternion();
|
||||
var targetPos = new THREE.Vector3();
|
||||
var targetVec = new THREE.Vector3();
|
||||
var effectorPos = new THREE.Vector3();
|
||||
var effectorVec = new THREE.Vector3();
|
||||
var linkPos = new THREE.Vector3();
|
||||
var invLinkQ = new THREE.Quaternion();
|
||||
var linkScale = new THREE.Vector3();
|
||||
var axis = new THREE.Vector3();
|
||||
var vector = new THREE.Vector3();
|
||||
|
||||
return function update() {
|
||||
|
||||
var bones = this.mesh.skeleton.bones;
|
||||
var iks = this.iks;
|
||||
|
||||
// for reference overhead reduction in loop
|
||||
var math = Math;
|
||||
|
||||
for ( var i = 0, il = iks.length; i < il; i ++ ) {
|
||||
|
||||
var ik = iks[ i ];
|
||||
var effector = bones[ ik.effector ];
|
||||
var target = bones[ ik.target ];
|
||||
|
||||
// don't use getWorldPosition() here for the performance
|
||||
// because it calls updateMatrixWorld( true ) inside.
|
||||
targetPos.setFromMatrixPosition( target.matrixWorld );
|
||||
|
||||
var links = ik.links;
|
||||
var iteration = ik.iteration !== undefined ? ik.iteration : 1;
|
||||
|
||||
for ( var j = 0; j < iteration; j ++ ) {
|
||||
|
||||
var rotated = false;
|
||||
|
||||
for ( var k = 0, kl = links.length; k < kl; k ++ ) {
|
||||
|
||||
var link = bones[ links[ k ].index ];
|
||||
|
||||
// skip this link and following links.
|
||||
// this skip is used for MMD performance optimization.
|
||||
if ( links[ k ].enabled === false ) break;
|
||||
|
||||
var limitation = links[ k ].limitation;
|
||||
var rotationMin = links[ k ].rotationMin;
|
||||
var rotationMax = links[ k ].rotationMax;
|
||||
|
||||
// don't use getWorldPosition/Quaternion() here for the performance
|
||||
// because they call updateMatrixWorld( true ) inside.
|
||||
link.matrixWorld.decompose( linkPos, invLinkQ, linkScale );
|
||||
invLinkQ.invert();
|
||||
effectorPos.setFromMatrixPosition( effector.matrixWorld );
|
||||
|
||||
// work in link world
|
||||
effectorVec.subVectors( effectorPos, linkPos );
|
||||
effectorVec.applyQuaternion( invLinkQ );
|
||||
effectorVec.normalize();
|
||||
|
||||
targetVec.subVectors( targetPos, linkPos );
|
||||
targetVec.applyQuaternion( invLinkQ );
|
||||
targetVec.normalize();
|
||||
|
||||
var angle = targetVec.dot( effectorVec );
|
||||
|
||||
if ( angle > 1.0 ) {
|
||||
|
||||
angle = 1.0;
|
||||
|
||||
} else if ( angle < - 1.0 ) {
|
||||
|
||||
angle = - 1.0;
|
||||
|
||||
}
|
||||
|
||||
angle = math.acos( angle );
|
||||
|
||||
// skip if changing angle is too small to prevent vibration of bone
|
||||
// Refer to http://www20.atpages.jp/katwat/three.js_r58/examples/mytest37/mmd.three.js
|
||||
if ( angle < 1e-5 ) continue;
|
||||
|
||||
if ( ik.minAngle !== undefined && angle < ik.minAngle ) {
|
||||
|
||||
angle = ik.minAngle;
|
||||
|
||||
}
|
||||
|
||||
if ( ik.maxAngle !== undefined && angle > ik.maxAngle ) {
|
||||
|
||||
angle = ik.maxAngle;
|
||||
|
||||
}
|
||||
|
||||
axis.crossVectors( effectorVec, targetVec );
|
||||
axis.normalize();
|
||||
|
||||
q.setFromAxisAngle( axis, angle );
|
||||
link.quaternion.multiply( q );
|
||||
|
||||
// TODO: re-consider the limitation specification
|
||||
if ( limitation !== undefined ) {
|
||||
|
||||
var c = link.quaternion.w;
|
||||
|
||||
if ( c > 1.0 ) c = 1.0;
|
||||
|
||||
var c2 = math.sqrt( 1 - c * c );
|
||||
link.quaternion.set( limitation.x * c2,
|
||||
limitation.y * c2,
|
||||
limitation.z * c2,
|
||||
c );
|
||||
|
||||
}
|
||||
|
||||
if ( rotationMin !== undefined ) {
|
||||
|
||||
link.rotation.setFromVector3(
|
||||
link.rotation
|
||||
.toVector3( vector )
|
||||
.max( rotationMin ) );
|
||||
|
||||
}
|
||||
|
||||
if ( rotationMax !== undefined ) {
|
||||
|
||||
link.rotation.setFromVector3(
|
||||
link.rotation
|
||||
.toVector3( vector )
|
||||
.min( rotationMax ) );
|
||||
|
||||
}
|
||||
|
||||
link.updateMatrixWorld( true );
|
||||
|
||||
rotated = true;
|
||||
|
||||
}
|
||||
|
||||
if ( ! rotated ) break;
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return this;
|
||||
|
||||
};
|
||||
|
||||
}(),
|
||||
|
||||
/**
|
||||
* Creates Helper
|
||||
*
|
||||
* @return {CCDIKHelper}
|
||||
*/
|
||||
createHelper: function () {
|
||||
|
||||
return new CCDIKHelper( this.mesh, this.mesh.geometry.userData.MMD.iks );
|
||||
|
||||
},
|
||||
|
||||
// private methods
|
||||
|
||||
_valid: function () {
|
||||
|
||||
var iks = this.iks;
|
||||
var bones = this.mesh.skeleton.bones;
|
||||
|
||||
for ( var i = 0, il = iks.length; i < il; i ++ ) {
|
||||
|
||||
var ik = iks[ i ];
|
||||
var effector = bones[ ik.effector ];
|
||||
var links = ik.links;
|
||||
var link0, link1;
|
||||
|
||||
link0 = effector;
|
||||
|
||||
for ( var j = 0, jl = links.length; j < jl; j ++ ) {
|
||||
|
||||
link1 = bones[ links[ j ].index ];
|
||||
|
||||
if ( link0.parent !== link1 ) {
|
||||
|
||||
console.warn( 'THREE.CCDIKSolver: bone ' + link0.name + ' is not the child of bone ' + link1.name );
|
||||
|
||||
}
|
||||
|
||||
link0 = link1;
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
/**
|
||||
* Visualize IK bones
|
||||
*
|
||||
* @param {SkinnedMesh} mesh
|
||||
* @param {Array<Object>} iks
|
||||
*/
|
||||
function CCDIKHelper( mesh, iks ) {
|
||||
|
||||
THREE.Object3D.call( this );
|
||||
|
||||
this.root = mesh;
|
||||
this.iks = iks || [];
|
||||
|
||||
this.matrix.copy( mesh.matrixWorld );
|
||||
this.matrixAutoUpdate = false;
|
||||
|
||||
this.sphereGeometry = new THREE.SphereGeometry( 0.25, 16, 8 );
|
||||
|
||||
this.targetSphereMaterial = new THREE.MeshBasicMaterial( {
|
||||
color: new THREE.Color( 0xff8888 ),
|
||||
depthTest: false,
|
||||
depthWrite: false,
|
||||
transparent: true
|
||||
} );
|
||||
|
||||
this.effectorSphereMaterial = new THREE.MeshBasicMaterial( {
|
||||
color: new THREE.Color( 0x88ff88 ),
|
||||
depthTest: false,
|
||||
depthWrite: false,
|
||||
transparent: true
|
||||
} );
|
||||
|
||||
this.linkSphereMaterial = new THREE.MeshBasicMaterial( {
|
||||
color: new THREE.Color( 0x8888ff ),
|
||||
depthTest: false,
|
||||
depthWrite: false,
|
||||
transparent: true
|
||||
} );
|
||||
|
||||
this.lineMaterial = new THREE.LineBasicMaterial( {
|
||||
color: new THREE.Color( 0xff0000 ),
|
||||
depthTest: false,
|
||||
depthWrite: false,
|
||||
transparent: true
|
||||
} );
|
||||
|
||||
this._init();
|
||||
|
||||
}
|
||||
|
||||
CCDIKHelper.prototype = Object.assign( Object.create( THREE.Object3D.prototype ), {
|
||||
|
||||
constructor: CCDIKHelper,
|
||||
|
||||
/**
|
||||
* Updates IK bones visualization.
|
||||
*/
|
||||
updateMatrixWorld: function () {
|
||||
|
||||
var matrix = new THREE.Matrix4();
|
||||
var vector = new THREE.Vector3();
|
||||
|
||||
function getPosition( bone, matrixWorldInv ) {
|
||||
|
||||
return vector
|
||||
.setFromMatrixPosition( bone.matrixWorld )
|
||||
.applyMatrix4( matrixWorldInv );
|
||||
|
||||
}
|
||||
|
||||
function setPositionOfBoneToAttributeArray( array, index, bone, matrixWorldInv ) {
|
||||
|
||||
var v = getPosition( bone, matrixWorldInv );
|
||||
|
||||
array[ index * 3 + 0 ] = v.x;
|
||||
array[ index * 3 + 1 ] = v.y;
|
||||
array[ index * 3 + 2 ] = v.z;
|
||||
|
||||
}
|
||||
|
||||
return function updateMatrixWorld( force ) {
|
||||
|
||||
var mesh = this.root;
|
||||
|
||||
if ( this.visible ) {
|
||||
|
||||
var offset = 0;
|
||||
|
||||
var iks = this.iks;
|
||||
var bones = mesh.skeleton.bones;
|
||||
|
||||
matrix.copy( mesh.matrixWorld ).invert();
|
||||
|
||||
for ( var i = 0, il = iks.length; i < il; i ++ ) {
|
||||
|
||||
var ik = iks[ i ];
|
||||
|
||||
var targetBone = bones[ ik.target ];
|
||||
var effectorBone = bones[ ik.effector ];
|
||||
|
||||
var targetMesh = this.children[ offset ++ ];
|
||||
var effectorMesh = this.children[ offset ++ ];
|
||||
|
||||
targetMesh.position.copy( getPosition( targetBone, matrix ) );
|
||||
effectorMesh.position.copy( getPosition( effectorBone, matrix ) );
|
||||
|
||||
for ( var j = 0, jl = ik.links.length; j < jl; j ++ ) {
|
||||
|
||||
var link = ik.links[ j ];
|
||||
var linkBone = bones[ link.index ];
|
||||
|
||||
var linkMesh = this.children[ offset ++ ];
|
||||
|
||||
linkMesh.position.copy( getPosition( linkBone, matrix ) );
|
||||
|
||||
}
|
||||
|
||||
var line = this.children[ offset ++ ];
|
||||
var array = line.geometry.attributes.position.array;
|
||||
|
||||
setPositionOfBoneToAttributeArray( array, 0, targetBone, matrix );
|
||||
setPositionOfBoneToAttributeArray( array, 1, effectorBone, matrix );
|
||||
|
||||
for ( var j = 0, jl = ik.links.length; j < jl; j ++ ) {
|
||||
|
||||
var link = ik.links[ j ];
|
||||
var linkBone = bones[ link.index ];
|
||||
setPositionOfBoneToAttributeArray( array, j + 2, linkBone, matrix );
|
||||
|
||||
}
|
||||
|
||||
line.geometry.attributes.position.needsUpdate = true;
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
this.matrix.copy( mesh.matrixWorld );
|
||||
|
||||
THREE.Object3D.prototype.updateMatrixWorld.call( this, force );
|
||||
|
||||
};
|
||||
|
||||
}(),
|
||||
|
||||
// private method
|
||||
|
||||
_init: function () {
|
||||
|
||||
var scope = this;
|
||||
var iks = this.iks;
|
||||
|
||||
function createLineGeometry( ik ) {
|
||||
|
||||
var geometry = new THREE.BufferGeometry();
|
||||
var vertices = new Float32Array( ( 2 + ik.links.length ) * 3 );
|
||||
geometry.setAttribute( 'position', new THREE.BufferAttribute( vertices, 3 ) );
|
||||
|
||||
return geometry;
|
||||
|
||||
}
|
||||
|
||||
function createTargetMesh() {
|
||||
|
||||
return new THREE.Mesh( scope.sphereGeometry, scope.targetSphereMaterial );
|
||||
|
||||
}
|
||||
|
||||
function createEffectorMesh() {
|
||||
|
||||
return new THREE.Mesh( scope.sphereGeometry, scope.effectorSphereMaterial );
|
||||
|
||||
}
|
||||
|
||||
function createLinkMesh() {
|
||||
|
||||
return new THREE.Mesh( scope.sphereGeometry, scope.linkSphereMaterial );
|
||||
|
||||
}
|
||||
|
||||
function createLine( ik ) {
|
||||
|
||||
return new THREE.Line( createLineGeometry( ik ), scope.lineMaterial );
|
||||
|
||||
}
|
||||
|
||||
for ( var i = 0, il = iks.length; i < il; i ++ ) {
|
||||
|
||||
var ik = iks[ i ];
|
||||
|
||||
this.add( createTargetMesh() );
|
||||
this.add( createEffectorMesh() );
|
||||
|
||||
for ( var j = 0, jl = ik.links.length; j < jl; j ++ ) {
|
||||
|
||||
this.add( createLinkMesh() );
|
||||
|
||||
}
|
||||
|
||||
this.add( createLine( ik ) );
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
} );
|
||||
|
||||
return CCDIKSolver;
|
||||
|
||||
} )();
|
||||
Loading…
Add table
Add a link
Reference in a new issue