Chameleon hack for World of tanks 0.9.20.1 replace the standard skins of tanks is a 3D version. What enabled such a mode of enemy tanks only to sniper sights. In contrast to the standard chameleon, in this modification uses enhanced color gradation.

When you try to keep covered enemy tank, you will be able to clearly see where different turrets, bulwarks, caterpillars, poorly protected roof of the tank. In addition, the more visible will be the results of shots, both yours and your allies. Marks that remain after being hit in a tank, will become more distinct. You will be able to understand where an enemy tank was broken and his armor withstood the onslaught of the projectile.

Another plus will be shooting at long distances. The contour of the tank will be clearly visible due to the different houses and stones. Now you can get even sticking out from behind the barriers a few pixels.

This mod was included in the list of banned mods. Do not place your replays and screenshots in open sources.
Setting
On and off mod in combat is done by pressing U.
You can change a key in the file

res_mods\0.9.x\scripts\client\gui\mods\mod_chams.xml