Multipass shader bug

Is it a bug?

It is different result every time to push the play button or change material property value.:frowning:

More information needed.

Yes.

My goal is to make blured floor reflection.

First, I tried to use Mirror Reflection 2 script, but it was not go well.

http://forum.unity3d.com/threads/196978-Blured-Mirror-Reflection

So, I tried to use another way with original Mirror Reflection 2 script.

1348645--66235--$img4.jpg

I create blured reflection shader in reference to this thread.
http://forum.unity3d.com/threads/185327-Simple-Optimized-Blur-Shader

1st Pass : Horizontal Blur
2nd Pass : Vertical Blur
3rd Pass : Add blured reflection to floor

It is different result every time to push the play button or change material property value.

No reflection
1348645--66236--$img1.jpg

No transparency and vertical blur
1348645--66237--$img2.jpg

Strange vertical blur
1348645--66238--$img3.jpg

Well
1348645--66239--$img5.jpg