Extended MorphAnimMesh to be able to play animations backwards.

build/Three.js

@@ -148,9 +148,10 @@ THREE.SkinnedMesh.prototype.updateMatrixWorld=function(a){this.matrixAutoUpdate&
 THREE.SkinnedMesh.prototype.pose=function(){this.updateMatrixWorld(!0);for(var a,b=[],c=0;c<this.bones.length;c++){a=this.bones[c];var d=new THREE.Matrix4;d.getInverse(a.skinMatrix);b.push(d);a.skinMatrix.flattenToArrayOffset(this.boneMatrices,16*c)}if(void 0===this.geometry.skinVerticesA){this.geometry.skinVerticesA=[];this.geometry.skinVerticesB=[];for(a=0;a<this.geometry.skinIndices.length;a++){var c=this.geometry.vertices[a].position,e=this.geometry.skinIndices[a].x,g=this.geometry.skinIndices[a].y,d=
 new THREE.Vector3(c.x,c.y,c.z);this.geometry.skinVerticesA.push(b[e].multiplyVector3(d));d=new THREE.Vector3(c.x,c.y,c.z);this.geometry.skinVerticesB.push(b[g].multiplyVector3(d));1!==this.geometry.skinWeights[a].x+this.geometry.skinWeights[a].y&&(c=0.5*(1-(this.geometry.skinWeights[a].x+this.geometry.skinWeights[a].y)),this.geometry.skinWeights[a].x+=c,this.geometry.skinWeights[a].y+=c)}}};
 THREE.MorphAnimMesh=function(a,b){THREE.Mesh.call(this,a,b);this.duration=1E3;this.mirroredLoop=!1;this.currentKeyframe=this.lastKeyframe=this.time=0;this.direction=1;this.directionBackwards=!1;this.setFrameRange(0,this.geometry.morphTargets.length-1)};THREE.MorphAnimMesh.prototype=new THREE.Mesh;THREE.MorphAnimMesh.prototype.constructor=THREE.MorphAnimMesh;THREE.MorphAnimMesh.prototype.setFrameRange=function(a,b){this.startKeyframe=a;this.endKeyframe=b;this.length=this.endKeyframe-this.startKeyframe};
+THREE.MorphAnimMesh.prototype.setDirectionForward=function(){this.direction=1;this.directionBackwards=!1};THREE.MorphAnimMesh.prototype.setDirectionBackward=function(){this.direction=-1;this.directionBackwards=!0};
 THREE.MorphAnimMesh.prototype.parseAnimations=function(){var a=this.geometry;if(!a.animations)a.animations={};for(var b,c=a.animations,d=/([a-z]+)(\d+)/,e=0,g=a.morphTargets.length;e<g;e++){var f=a.morphTargets[e].name.match(d);if(f&&1<f.length){f=f[1];c[f]||(c[f]={start:Infinity,end:-Infinity});var h=c[f];if(e<h.start)h.start=e;if(e>h.end)h.end=e;b||(b=f)}}a.firstAnimation=b};
 THREE.MorphAnimMesh.prototype.setAnimationLabel=function(a,b,c){if(!this.geometry.animations)this.geometry.animations={};this.geometry.animations[a]={start:b,end:c}};THREE.MorphAnimMesh.prototype.playAnimation=function(a,b){var c=this.geometry.animations[a];this.setFrameRange(c.start,c.end);this.duration=1E3*((c.end-c.start)/b);this.time=0};
-THREE.MorphAnimMesh.prototype.updateAnimation=function(a){var b=this.duration/this.length;this.time+=this.direction*a;if(this.mirroredLoop){if(this.time>this.duration||0>this.time){this.direction*=-1;if(this.time>this.duration)this.time=this.duration,this.directionBackwards=!0;if(0>this.time)this.time=0,this.directionBackwards=!1}}else this.time%=this.duration;a=this.startKeyframe+THREE.Math.clamp(Math.floor(this.time/b),0,this.length);if(a!==this.currentKeyframe)this.morphTargetInfluences[this.lastKeyframe]=
+THREE.MorphAnimMesh.prototype.updateAnimation=function(a){var b=this.duration/this.length;this.time+=this.direction*a;if(this.mirroredLoop){if(this.time>this.duration||0>this.time){this.direction*=-1;if(this.time>this.duration)this.time=this.duration,this.directionBackwards=!0;if(0>this.time)this.time=0,this.directionBackwards=!1}}else this.time%=this.duration,0>this.time&&(this.time+=this.duration);a=this.startKeyframe+THREE.Math.clamp(Math.floor(this.time/b),0,this.length);if(a!==this.currentKeyframe)this.morphTargetInfluences[this.lastKeyframe]=
 0,this.morphTargetInfluences[this.currentKeyframe]=1,this.morphTargetInfluences[a]=0,this.lastKeyframe=this.currentKeyframe,this.currentKeyframe=a;b=this.time%b/b;this.directionBackwards&&(b=1-b);this.morphTargetInfluences[this.currentKeyframe]=b;this.morphTargetInfluences[this.lastKeyframe]=1-b};THREE.Ribbon=function(a,b){THREE.Object3D.call(this);this.geometry=a;this.material=b};THREE.Ribbon.prototype=new THREE.Object3D;THREE.Ribbon.prototype.constructor=THREE.Ribbon;
 THREE.LOD=function(){THREE.Object3D.call(this);this.LODs=[]};THREE.LOD.prototype=new THREE.Object3D;THREE.LOD.prototype.constructor=THREE.LOD;THREE.LOD.prototype.supr=THREE.Object3D.prototype;THREE.LOD.prototype.addLevel=function(a,b){void 0===b&&(b=0);for(var b=Math.abs(b),c=0;c<this.LODs.length&&!(b<this.LODs[c].visibleAtDistance);c++);this.LODs.splice(c,0,{visibleAtDistance:b,object3D:a});this.add(a)};
 THREE.LOD.prototype.update=function(a){if(1<this.LODs.length){a.matrixWorldInverse.getInverse(a.matrixWorld);a=a.matrixWorldInverse;a=-(a.n31*this.matrixWorld.n14+a.n32*this.matrixWorld.n24+a.n33*this.matrixWorld.n34+a.n34);this.LODs[0].object3D.visible=!0;for(var b=1;b<this.LODs.length;b++)if(a>=this.LODs[b].visibleAtDistance)this.LODs[b-1].object3D.visible=!1,this.LODs[b].object3D.visible=!0;else break;for(;b<this.LODs.length;b++)this.LODs[b].object3D.visible=!1}};

src/objects/MorphAnimMesh.js

@@ -36,6 +36,20 @@ THREE.MorphAnimMesh.prototype.setFrameRange = function ( start, end ) {
 
 };
 
+THREE.MorphAnimMesh.prototype.setDirectionForward = function () {
+
+	this.direction = 1;
+	this.directionBackwards = false;
+
+};
+
+THREE.MorphAnimMesh.prototype.setDirectionBackward = function () {
+
+	this.direction = -1;
+	this.directionBackwards = true;
+
+};
+
 THREE.MorphAnimMesh.prototype.parseAnimations = function () {
 
 	var geometry = this.geometry;
@@ -123,6 +137,8 @@ THREE.MorphAnimMesh.prototype.updateAnimation = function ( delta ) {
 
 		this.time = this.time % this.duration;
 
+		if ( this.time < 0 ) this.time += this.duration;
+
 	}
 
 	var keyframe = this.startKeyframe + THREE.Math.clamp( Math.floor( this.time / frameTime ), 0, this.length );