transparent mesh rotated?

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Changing transparency of the loaded mesh seems rotates it a little bit.

- this an an original loaded file, it's opaque
https://drive.google.com/file/d/0B86_WY0vcTRkd0hzdi00eHFrVmc/view

- applied 10% transparency only and didnt' move the mesh at all
https://drive.google.com/file/d/0B86_WY0vcTRkcHU4RGFKRVhldkE/view

- started to rotate the transparent mesh
https://drive.google.com/file/d/0B86_WY0vcTRkQ2F2Y2d2TTVUcHc/view
https://drive.google.com/file/d/0B86_WY0vcTRkVG44UXdRaG01a2M/view

2.
3.

What is the expected output? What do you see instead?


What version of the product are you using? On what operating system?
the latest one from trunk, win/linux. chrome browser

Please provide any additional information below.
using webgl mode, doublesided mesh

Original issue reported on code.google.com by vlvin...@gmail.com on 11 Mar 2015 at 5:34