diff --git a/spine-cocos2d-iphone/src/spine/CCSkeleton.m b/spine-cocos2d-iphone/src/spine/CCSkeleton.m
index 1ee7c78b5..9f52676cc 100644
--- a/spine-cocos2d-iphone/src/spine/CCSkeleton.m
+++ b/spine-cocos2d-iphone/src/spine/CCSkeleton.m
@@ -208,28 +208,28 @@
 	float minX = FLT_MAX, minY = FLT_MAX, maxX = FLT_MIN, maxY = FLT_MIN;
 	float scaleX = self.scaleX;
 	float scaleY = self.scaleY;
-	ccV3F_C4B_T2F_Quad quad;
+	float vertices[8];
 	for (int i = 0; i < _skeleton->slotCount; ++i) {
 		Slot* slot = _skeleton->slots[i];
 		if (!slot->attachment || slot->attachment->type != ATTACHMENT_REGION) continue;
 		RegionAttachment* attachment = (RegionAttachment*)slot->attachment;
-		RegionAttachment_updateQuad(attachment, slot, &quad);
-		minX = fmin(minX, quad.bl.vertices.x * scaleX);
-		minY = fmin(minY, quad.bl.vertices.y * scaleY);
-		maxX = fmax(maxX, quad.bl.vertices.x * scaleX);
-		maxY = fmax(maxY, quad.bl.vertices.y * scaleY);
-		minX = fmin(minX, quad.br.vertices.x * scaleX);
-		minY = fmin(minY, quad.br.vertices.y * scaleY);
-		maxX = fmax(maxX, quad.br.vertices.x * scaleX);
-		maxY = fmax(maxY, quad.br.vertices.y * scaleY);
-		minX = fmin(minX, quad.tl.vertices.x * scaleX);
-		minY = fmin(minY, quad.tl.vertices.y * scaleY);
-		maxX = fmax(maxX, quad.tl.vertices.x * scaleX);
-		maxY = fmax(maxY, quad.tl.vertices.y * scaleY);
-		minX = fmin(minX, quad.tr.vertices.x * scaleX);
-		minY = fmin(minY, quad.tr.vertices.y * scaleY);
-		maxX = fmax(maxX, quad.tr.vertices.x * scaleX);
-		maxY = fmax(maxY, quad.tr.vertices.y * scaleY);
+		RegionAttachment_computeVertices(attachment, slot, vertices);
+		minX = fmin(minX, vertices[VERTEX_X1] * scaleX);
+		minY = fmin(minY, vertices[VERTEX_Y1] * scaleY);
+		maxX = fmax(maxX, vertices[VERTEX_X1] * scaleX);
+		maxY = fmax(maxY, vertices[VERTEX_Y1] * scaleY);
+		minX = fmin(minX, vertices[VERTEX_X4] * scaleX);
+		minY = fmin(minY, vertices[VERTEX_Y4] * scaleY);
+		maxX = fmax(maxX, vertices[VERTEX_X4] * scaleX);
+		maxY = fmax(maxY, vertices[VERTEX_Y4] * scaleY);
+		minX = fmin(minX, vertices[VERTEX_X2] * scaleX);
+		minY = fmin(minY, vertices[VERTEX_Y2] * scaleY);
+		maxX = fmax(maxX, vertices[VERTEX_X2] * scaleX);
+		maxY = fmax(maxY, vertices[VERTEX_Y2] * scaleY);
+		minX = fmin(minX, vertices[VERTEX_X3] * scaleX);
+		minY = fmin(minY, vertices[VERTEX_Y3] * scaleY);
+		maxX = fmax(maxX, vertices[VERTEX_X3] * scaleX);
+		maxY = fmax(maxY, vertices[VERTEX_Y3] * scaleY);
 	}
 	minX = self.position.x + minX;
 	minY = self.position.y + minY;
diff --git a/spine-cocos2dx/src/spine/CCSkeleton.cpp b/spine-cocos2dx/src/spine/CCSkeleton.cpp
index 831514108..7e1d3f66d 100644
--- a/spine-cocos2dx/src/spine/CCSkeleton.cpp
+++ b/spine-cocos2dx/src/spine/CCSkeleton.cpp
@@ -200,28 +200,28 @@ CCRect CCSkeleton::boundingBox () {
 	float minX = FLT_MAX, minY = FLT_MAX, maxX = FLT_MIN, maxY = FLT_MIN;
 	float scaleX = getScaleX();
 	float scaleY = getScaleY();
-	ccV3F_C4B_T2F_Quad quad;
+	float vertices[8];
 	for (int i = 0; i < skeleton->slotCount; ++i) {
 		Slot* slot = skeleton->slots[i];
 		if (!slot->attachment || slot->attachment->type != ATTACHMENT_REGION) continue;
 		RegionAttachment* attachment = (RegionAttachment*)slot->attachment;
-		RegionAttachment_updateQuad(attachment, slot, &quad);
-		minX = min(minX, quad.bl.vertices.x * scaleX);
-		minY = min(minY, quad.bl.vertices.y * scaleY);
-		maxX = max(maxX, quad.bl.vertices.x * scaleX);
-		maxY = max(maxY, quad.bl.vertices.y * scaleY);
-		minX = min(minX, quad.br.vertices.x * scaleX);
-		minY = min(minY, quad.br.vertices.y * scaleY);
-		maxX = max(maxX, quad.br.vertices.x * scaleX);
-		maxY = max(maxY, quad.br.vertices.y * scaleY);
-		minX = min(minX, quad.tl.vertices.x * scaleX);
-		minY = min(minY, quad.tl.vertices.y * scaleY);
-		maxX = max(maxX, quad.tl.vertices.x * scaleX);
-		maxY = max(maxY, quad.tl.vertices.y * scaleY);
-		minX = min(minX, quad.tr.vertices.x * scaleX);
-		minY = min(minY, quad.tr.vertices.y * scaleY);
-		maxX = max(maxX, quad.tr.vertices.x * scaleX);
-		maxY = max(maxY, quad.tr.vertices.y * scaleY);
+		RegionAttachment_computeVertices(attachment, slot, vertices);
+		minX = min(minX, vertices[VERTEX_X1] * scaleX);
+		minY = min(minY, vertices[VERTEX_Y1] * scaleY);
+		maxX = max(maxX, vertices[VERTEX_X1] * scaleX);
+		maxY = max(maxY, vertices[VERTEX_Y1] * scaleY);
+		minX = min(minX, vertices[VERTEX_X4] * scaleX);
+		minY = min(minY, vertices[VERTEX_Y4] * scaleY);
+		maxX = max(maxX, vertices[VERTEX_X4] * scaleX);
+		maxY = max(maxY, vertices[VERTEX_Y4] * scaleY);
+		minX = min(minX, vertices[VERTEX_X2] * scaleX);
+		minY = min(minY, vertices[VERTEX_Y2] * scaleY);
+		maxX = max(maxX, vertices[VERTEX_X2] * scaleX);
+		maxY = max(maxY, vertices[VERTEX_Y2] * scaleY);
+		minX = min(minX, vertices[VERTEX_X3] * scaleX);
+		minY = min(minY, vertices[VERTEX_Y3] * scaleY);
+		maxX = max(maxX, vertices[VERTEX_X3] * scaleX);
+		maxY = max(maxY, vertices[VERTEX_Y3] * scaleY);
 	}
 	CCPoint position = getPosition();
 	return CCRectMake(position.x + minX, position.y + minY, maxX - minX, maxY - minY);