[as3][starling] Added VertexEffect and implementations plus support for Starling. See #898

CHANGELOG.md

@@ -17,12 +17,14 @@
   * Added `ClippingAttachment`, additional method `newClippingAttachment` in `AttachmentLoader` interface.
   * `AnimationState#apply` returns boolean indicating if any timeline was applied or not.
   * `Animation#apply` and `Timeline#apply`` now take enums `MixPose` and `MixDirection` instead of booleans
+  * Added `VertexEffect` and implementations `JitterEffect` and `SwirlEffect`. Allows you to modify vertices before they are submitted for drawing. See Starling changes.
 
 ### Starling
  * Fixed renderer to work with 3.6 changes.
  * Added support for two color tinting.
  * Added support for clipping.
  * Added support for rotated regions in texture atlas loaded via StarlingAtlasAttachmentLoader.
+ * Added support for vertex effects. See `RaptorExample.as`
 
 ## C
  * **Breaking changes**

spine-as3/spine-as3/.settings/org.eclipse.core.resources.prefs

@@ -1,10 +1,18 @@
 eclipse.preferences.version=1
+encoding//src/spine/Interpolation.as=UTF-8
+encoding//src/spine/MathUtils.as=UTF-8
 encoding//src/spine/SkeletonClipping.as=UTF-8
 encoding//src/spine/SkeletonJson.as=UTF-8
 encoding//src/spine/Triangulator.as=UTF-8
+encoding//src/spine/Vertex.as=UTF-8
+encoding//src/spine/VertexEffect.as=UTF-8
 encoding//src/spine/animation/MixDirection.as=UTF-8
 encoding//src/spine/animation/MixPose.as=UTF-8
 encoding//src/spine/animation/TwoColorTimeline.as=UTF-8
 encoding//src/spine/attachments/ClippingAttachment.as=UTF-8
 encoding//src/spine/attachments/PointAttachment.as=UTF-8
+encoding//src/spine/interpolation/Pow.as=UTF-8
+encoding//src/spine/interpolation/PowOut.as=UTF-8
+encoding//src/spine/vertexeffects/JitterEffect.as=UTF-8
+encoding//src/spine/vertexeffects/SwirlEffect.as=UTF-8
 encoding/<project>=UTF-8

spine-as3/spine-as3/src/spine/Interpolation.as

@@ -0,0 +1,41 @@
+/******************************************************************************
+ * Spine Runtimes Software License v2.5
+ *
+ * Copyright (c) 2013-2016, Esoteric Software
+ * All rights reserved.
+ *
+ * You are granted a perpetual, non-exclusive, non-sublicensable, and
+ * non-transferable license to use, install, execute, and perform the Spine
+ * Runtimes software and derivative works solely for personal or internal
+ * use. Without the written permission of Esoteric Software (see Section 2 of
+ * the Spine Software License Agreement), you may not (a) modify, translate,
+ * adapt, or develop new applications using the Spine Runtimes or otherwise
+ * create derivative works or improvements of the Spine Runtimes or (b) remove,
+ * delete, alter, or obscure any trademarks or any copyright, trademark, patent,
+ * or other intellectual property or proprietary rights notices on or in the
+ * Software, including any copy thereof. Redistributions in binary or source
+ * form must include this license and terms.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
+ * USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+package spine {
+	public class Interpolation {		
+		protected function applyInternal (a : Number) : Number {
+			return a;
+		}
+		
+		public function apply (start : Number, end : Number, a : Number) : Number {
+			return start + (end - start) * applyInternal(a);
+		}
+	}
+}

spine-as3/spine-as3/src/spine/MathUtils.as

@@ -27,7 +27,7 @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  *****************************************************************************/
-
+ 
 package spine {
 	public class MathUtils {
 		static public var PI : Number = Math.PI;
@@ -52,5 +52,16 @@ package spine {
 		static public function signum(value : Number) : Number {
 			return value > 0 ? 1 : value < 0 ? -1 : 0;
 		}
+
+		static public function randomTriangular(min : Number, max : Number) : Number {
+			return randomTriangularWith(min, max, (min + max) * 0.5);
+		}
+
+		static public function randomTriangularWith(min : Number, max : Number, mode : Number) : Number {
+			var u : Number = Math.random();
+			var d : Number = max - min;
+			if (u <= (mode - min) / d) return min + Math.sqrt(u * d * (mode - min));
+			return max - Math.sqrt((1 - u) * d * (max - mode));
+		}
 	}
 }

spine-as3/spine-as3/src/spine/Vertex.as

@@ -0,0 +1,43 @@
+/******************************************************************************
+ * Spine Runtimes Software License v2.5
+ *
+ * Copyright (c) 2013-2016, Esoteric Software
+ * All rights reserved.
+ *
+ * You are granted a perpetual, non-exclusive, non-sublicensable, and
+ * non-transferable license to use, install, execute, and perform the Spine
+ * Runtimes software and derivative works solely for personal or internal
+ * use. Without the written permission of Esoteric Software (see Section 2 of
+ * the Spine Software License Agreement), you may not (a) modify, translate,
+ * adapt, or develop new applications using the Spine Runtimes or otherwise
+ * create derivative works or improvements of the Spine Runtimes or (b) remove,
+ * delete, alter, or obscure any trademarks or any copyright, trademark, patent,
+ * or other intellectual property or proprietary rights notices on or in the
+ * Software, including any copy thereof. Redistributions in binary or source
+ * form must include this license and terms.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
+ * USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+package spine {
+	/**
+	 * @author badlogic
+	 */
+	public class Vertex {
+		public var x : Number;
+		public var y : Number;
+		public var u : Number;
+		public var v : Number;
+		public var light : Color = new spine.Color(0, 0, 0);
+		public var dark : Color = new spine.Color(0, 0, 0);
+	}
+}

spine-as3/spine-as3/src/spine/VertexEffect.as

@@ -0,0 +1,39 @@
+/******************************************************************************
+ * Spine Runtimes Software License v2.5
+ *
+ * Copyright (c) 2013-2016, Esoteric Software
+ * All rights reserved.
+ *
+ * You are granted a perpetual, non-exclusive, non-sublicensable, and
+ * non-transferable license to use, install, execute, and perform the Spine
+ * Runtimes software and derivative works solely for personal or internal
+ * use. Without the written permission of Esoteric Software (see Section 2 of
+ * the Spine Software License Agreement), you may not (a) modify, translate,
+ * adapt, or develop new applications using the Spine Runtimes or otherwise
+ * create derivative works or improvements of the Spine Runtimes or (b) remove,
+ * delete, alter, or obscure any trademarks or any copyright, trademark, patent,
+ * or other intellectual property or proprietary rights notices on or in the
+ * Software, including any copy thereof. Redistributions in binary or source
+ * form must include this license and terms.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
+ * USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+ 
+package spine {
+	public interface VertexEffect {
+		function begin(skeleton : Skeleton) : void;
+
+		function transform(vertex : Vertex) : void;
+		
+		function end() : void;
+	}
+}

spine-as3/spine-as3/src/spine/interpolation/Pow.as

@@ -0,0 +1,46 @@
+/******************************************************************************
+ * Spine Runtimes Software License v2.5
+ *
+ * Copyright (c) 2013-2016, Esoteric Software
+ * All rights reserved.
+ *
+ * You are granted a perpetual, non-exclusive, non-sublicensable, and
+ * non-transferable license to use, install, execute, and perform the Spine
+ * Runtimes software and derivative works solely for personal or internal
+ * use. Without the written permission of Esoteric Software (see Section 2 of
+ * the Spine Software License Agreement), you may not (a) modify, translate,
+ * adapt, or develop new applications using the Spine Runtimes or otherwise
+ * create derivative works or improvements of the Spine Runtimes or (b) remove,
+ * delete, alter, or obscure any trademarks or any copyright, trademark, patent,
+ * or other intellectual property or proprietary rights notices on or in the
+ * Software, including any copy thereof. Redistributions in binary or source
+ * form must include this license and terms.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
+ * USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+package spine.interpolation {
+	import spine.Interpolation;
+	
+	public class Pow extends Interpolation {
+		protected var power : Number;
+		
+		public function Pow(power : Number) {
+			this.power = power;
+		}
+		
+		protected override function applyInternal(a : Number) : Number {
+			if (a <= 0.5) return Math.pow(a * 2, power) / 2;
+			return Math.pow((a - 1) * 2, power) / (power % 2 == 0 ? -2 : 2) + 1;
+		}
+	}
+}

spine-as3/spine-as3/src/spine/interpolation/PowOut.as

@@ -0,0 +1,41 @@
+/******************************************************************************
+ * Spine Runtimes Software License v2.5
+ *
+ * Copyright (c) 2013-2016, Esoteric Software
+ * All rights reserved.
+ *
+ * You are granted a perpetual, non-exclusive, non-sublicensable, and
+ * non-transferable license to use, install, execute, and perform the Spine
+ * Runtimes software and derivative works solely for personal or internal
+ * use. Without the written permission of Esoteric Software (see Section 2 of
+ * the Spine Software License Agreement), you may not (a) modify, translate,
+ * adapt, or develop new applications using the Spine Runtimes or otherwise
+ * create derivative works or improvements of the Spine Runtimes or (b) remove,
+ * delete, alter, or obscure any trademarks or any copyright, trademark, patent,
+ * or other intellectual property or proprietary rights notices on or in the
+ * Software, including any copy thereof. Redistributions in binary or source
+ * form must include this license and terms.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
+ * USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+package spine.interpolation {
+	public class PowOut extends Pow {
+		public function PowOut(power : Number) {
+			super(power);	
+		}
+		
+		protected override function applyInternal(a : Number) : Number {
+			return Math.pow(a - 1, power) * (power % 2 == 0 ? -1 : 1) + 1;
+		}
+	}
+}

spine-as3/spine-as3/src/spine/vertexeffects/JitterEffect.as

@@ -0,0 +1,57 @@
+/******************************************************************************
+ * Spine Runtimes Software License v2.5
+ *
+ * Copyright (c) 2013-2016, Esoteric Software
+ * All rights reserved.
+ *
+ * You are granted a perpetual, non-exclusive, non-sublicensable, and
+ * non-transferable license to use, install, execute, and perform the Spine
+ * Runtimes software and derivative works solely for personal or internal
+ * use. Without the written permission of Esoteric Software (see Section 2 of
+ * the Spine Software License Agreement), you may not (a) modify, translate,
+ * adapt, or develop new applications using the Spine Runtimes or otherwise
+ * create derivative works or improvements of the Spine Runtimes or (b) remove,
+ * delete, alter, or obscure any trademarks or any copyright, trademark, patent,
+ * or other intellectual property or proprietary rights notices on or in the
+ * Software, including any copy thereof. Redistributions in binary or source
+ * form must include this license and terms.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
+ * USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+package spine.vertexeffects {
+	import spine.MathUtils;
+	import spine.Skeleton;
+	import spine.Vertex;
+	import spine.VertexEffect;
+ 
+ 	public class JitterEffect implements VertexEffect {
+		public var jitterX : Number;
+		public var jitterY : Number;
+		
+		public function JitterEffect(jitterX: Number, jitterY: Number) {
+			this.jitterX = jitterX;
+			this.jitterY = jitterY;
+		}
+		
+		public function begin(skeleton : Skeleton) : void {
+		}
+
+		public function transform(vertex : Vertex) : void {
+			vertex.x += MathUtils.randomTriangular(-jitterX, jitterY);
+			vertex.y += MathUtils.randomTriangular(-jitterX, jitterY);
+		}
+
+		public function end() : void {
+		}
+	}
+}

spine-as3/spine-as3/src/spine/vertexeffects/SwirlEffect.as

@@ -0,0 +1,84 @@
+/******************************************************************************
+ * Spine Runtimes Software License v2.5
+ *
+ * Copyright (c) 2013-2016, Esoteric Software
+ * All rights reserved.
+ *
+ * You are granted a perpetual, non-exclusive, non-sublicensable, and
+ * non-transferable license to use, install, execute, and perform the Spine
+ * Runtimes software and derivative works solely for personal or internal
+ * use. Without the written permission of Esoteric Software (see Section 2 of
+ * the Spine Software License Agreement), you may not (a) modify, translate,
+ * adapt, or develop new applications using the Spine Runtimes or otherwise
+ * create derivative works or improvements of the Spine Runtimes or (b) remove,
+ * delete, alter, or obscure any trademarks or any copyright, trademark, patent,
+ * or other intellectual property or proprietary rights notices on or in the
+ * Software, including any copy thereof. Redistributions in binary or source
+ * form must include this license and terms.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
+ * USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+package spine.vertexeffects {
+	import spine.interpolation.Pow;
+	import spine.MathUtils;
+	import spine.Interpolation;
+	import spine.Skeleton;
+	import spine.Vertex;
+	import spine.VertexEffect;
+	
+	public class SwirlEffect implements VertexEffect {
+		private var worldX : Number, worldY : Number, _radius : Number = 0, _angle : Number = 0;
+		private var _interpolation : Interpolation;
+		private var _centerX : Number = 0, _centerY : Number = 0;
+		
+		public function SwirlEffect(radius : Number) {
+			this._interpolation = new Pow(2);;
+			this._radius = radius;
+		}
+		
+		public function begin(skeleton : Skeleton) : void {
+			worldX = skeleton.x + _centerX;
+			worldY = skeleton.y + _centerY;			
+		}
+
+		public function transform(vertex : Vertex) : void {
+			var x : Number = vertex.x - worldX;
+			var y : Number = vertex.y - worldY;
+			var dist : Number = Math.sqrt(x * x + y * y);
+			if (dist < radius) {
+				var theta : Number = interpolation.apply(0, angle, (radius - dist) / radius);
+				var cos : Number = Math.cos(theta), sin : Number = Math.sin(theta);
+				vertex.x = cos * x - sin * y + worldX;
+				vertex.y = sin * x + cos * y + worldY;
+			}
+		}
+
+		public function end() : void {
+		}
+		
+		public function get radius () : Number { return _radius; }
+		public function set radius (radius : Number) : void { _radius = radius; }
+		
+		public function get angle () : Number { return _angle; }
+		public function set angle (angle : Number) : void { _angle = angle * MathUtils.degRad; }
+		
+		public function get centerX () : Number { return _centerX; }
+		public function set centerX (centerX : Number) : void { _centerX = centerX; }
+		
+		public function get centerY () : Number { return _centerY; }
+		public function set centerY (centerY : Number) : void { _centerY = centerY; }
+		
+		public function get interpolation () : Interpolation { return _interpolation; }
+		public function set interpolation (interpolation : Interpolation) : void { _interpolation = interpolation; }
+	}
+}

spine-starling/spine-starling-example/src/spine/examples/RaptorExample.as

@@ -29,6 +29,10 @@
  *****************************************************************************/
 
 package spine.examples {
+	import spine.interpolation.Pow;
+	import starling.animation.IAnimatable;
+	import spine.vertexeffects.SwirlEffect;
+	import spine.vertexeffects.JitterEffect;
 	import starling.display.DisplayObjectContainer;
 	import spine.atlas.Atlas;
 	import spine.*;
@@ -43,7 +47,7 @@ package spine.examples {
 	import starling.events.TouchEvent;
 	import starling.events.TouchPhase;
 
-	public class RaptorExample extends Sprite {
+	public class RaptorExample extends Sprite implements IAnimatable {
 		[Embed(source = "/raptor-pro.json", mimeType = "application/octet-stream")]
 		static public const RaptorJson : Class;
 
@@ -55,6 +59,10 @@ package spine.examples {
 		private var skeleton : SkeletonAnimation;
 		private var gunGrabbed : Boolean;
 		private var gunGrabCount : Number = 0;
+		
+		private var swirl : SwirlEffect;
+		private var swirlTime : Number = 0;
+		private var pow2 : Interpolation = new Pow(2);
 
 		public function RaptorExample() {
 			var attachmentLoader : AttachmentLoader;
@@ -74,9 +82,15 @@ package spine.examples {
 			skeleton.state.apply(skeleton.skeleton);
 			skeleton.skeleton.updateWorldTransform();
 			this.setRequiresRedraw();
+			
+			// skeleton.vertexEffect = new JitterEffect(10, 10);
+			swirl = new SwirlEffect(400);
+			swirl.centerY = -200;	
+			skeleton.vertexEffect = swirl;
 
 			addChild(skeleton);
 			Starling.juggler.add(skeleton);
+			Starling.juggler.add(this);
 
 			addEventListener(TouchEvent.TOUCH, onClick);
 		}
@@ -98,5 +112,12 @@ package spine.examples {
 				}
 			}
 		}
+
+		public function advanceTime(time : Number) : void {
+			swirlTime += time;
+			var percent : Number = swirlTime % 2;
+			if (percent > 1) percent = 1 - (percent - 1);
+			swirl.angle = pow2.apply(-60, 60, percent);
+		}
 	}
 }

spine-starling/spine-starling/src/spine/starling/SkeletonSprite.as

@@ -39,6 +39,7 @@ package spine.starling {
 	import spine.attachments.Attachment;
 	import spine.attachments.MeshAttachment;
 	import spine.attachments.RegionAttachment;
+	import spine.VertexEffect;
 
 	import starling.display.BlendMode;
 	import starling.display.DisplayObject;
@@ -63,6 +64,11 @@ package spine.starling {
 		private var _smoothing : String = "bilinear";
 		private static var clipper: SkeletonClipping = new SkeletonClipping();
 		private static var QUAD_INDICES : Vector.<uint> = new <uint>[0, 1, 2, 2, 3, 0];
+		
+		public var vertexEffect : VertexEffect;
+		private var tempLight : spine.Color = new spine.Color(0, 0, 0);
+		private var tempDark : spine.Color = new spine.Color(0, 0, 0);
+		private var tempVertex : spine.Vertex = new spine.Vertex();
 
 		public function SkeletonSprite(skeletonData : SkeletonData) {
 			Bone.yDown = true;
@@ -86,6 +92,8 @@ package spine.starling {
 			var verticesLength : int, verticesCount : int, indicesLength : int;
 			var indexData : IndexData, indices : Vector.<uint>, vertexData : VertexData;
 			var uvs : Vector.<Number>;
+			
+			if (vertexEffect != null) vertexEffect.begin(skeleton);
 
 			for (var i : int = 0, n : int = drawOrder.length; i < n; ++i) {
 				var worldVertices : Vector.<Number> = _tempVertices;
@@ -171,13 +179,37 @@ package spine.starling {
 				}
 
 				vertexData = mesh.getVertexData();
-				vertexData.numVertices = verticesCount;				
-				vertexData.colorize("color", rgb, a);
-				vertexData.colorize("color2", dark);
-				for (ii = 0, iii = 0; ii < verticesCount; ii++, iii += 2) {
-					mesh.setVertexPosition(ii, worldVertices[iii], worldVertices[iii + 1]);
-					mesh.setTexCoords(ii, uvs[iii], uvs[iii + 1]);
-				}				
+				vertexData.numVertices = verticesCount;	
+				if (vertexEffect != null) {
+					tempLight.r = ((rgb >> 16) & 0xff) / 255.0;
+					tempLight.g = ((rgb >> 8) & 0xff) / 255.0;
+					tempLight.b = (rgb & 0xff) / 255.0;
+					tempLight.a = a;
+					tempDark.r = ((dark >> 16) & 0xff) / 255.0;
+					tempDark.g = ((dark >> 8) & 0xff) / 255.0;
+					tempDark.b = (dark & 0xff) / 255.0;
+					tempDark.a = 0;
+					for (ii = 0, iii = 0; ii < verticesCount; ii++, iii += 2) {
+						tempVertex.x = worldVertices[iii];
+						tempVertex.y = worldVertices[iii + 1];
+						tempVertex.u = uvs[iii];
+						tempVertex.v = uvs[iii + 1];
+						tempVertex.light.setFromColor(tempLight);
+						tempVertex.dark.setFromColor(tempDark);
+						vertexEffect.transform(tempVertex);
+						vertexData.colorize("color", Color.rgb(tempVertex.light.r * 255, tempVertex.light.g * 255, tempVertex.light.b * 255), tempVertex.light.a, ii, 1);
+						vertexData.colorize("color2", Color.rgb(tempVertex.dark.r * 255, tempVertex.dark.g * 255, tempVertex.dark.b * 255), a, ii, 1);						
+						mesh.setVertexPosition(ii, tempVertex.x, tempVertex.y);
+						mesh.setTexCoords(ii, tempVertex.u, tempVertex.v);
+					}
+				} else {
+					vertexData.colorize("color", rgb, a);
+					vertexData.colorize("color2", dark);
+					for (ii = 0, iii = 0; ii < verticesCount; ii++, iii += 2) {
+						mesh.setVertexPosition(ii, worldVertices[iii], worldVertices[iii + 1]);
+						mesh.setTexCoords(ii, uvs[iii], uvs[iii + 1]);
+					}				
+				}
 				painter.state.blendMode = blendModes[slot.data.blendMode.ordinal];				
 				painter.batchMesh(mesh);
 				
@@ -185,6 +217,8 @@ package spine.starling {
 			}
 			painter.state.blendMode = originalBlendMode;
 			clipper.clipEnd();
+			
+			if (vertexEffect != null) vertexEffect.end();
 		}
 
 		override public function hitTest(localPoint : Point) : DisplayObject {