Other-Animations-Attributes-for-Buttons.md

@@ -18,4 +18,19 @@ app:bmb_rotateDegree="1080"
 app:bmb_hideDelay="0"
 app:bmb_hideDuration="500"
 app:bmb_frames="60"
-```
+```
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+
+### 3D Animation
+From version 2.1.0, 3D animations of boom-buttons are supported:
+```
+bmb.setUse3DTransformAnimation(true);  // Whether use a 3D transform animation when booming or rebooming.
+```
+Or in .xml:
+```
+app:bmb_use3DTransformAnimation="true"
+```
+
+[3D Animation Demo](https://github.com/Nightonke/BoomMenu/blob/master/app/src/main/java/com/nightonke/boommenusample/ThreeDAnimationActivity.java) shows the difference of 3D and 2D animations.
+
+<img src="https://github.com/Nightonke/BoomMenuButton-Images/blob/master/Android/3DAnimationOn.gif" width=300/>
+<img src="https://github.com/Nightonke/BoomMenuButton-Images/blob/master/Android/3DAnimationOff.gif" width=300/>
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