Alpha Channel problem.

Hello everyone. I am the newbie-noob in Blender, but I had some expirience in Cinema 4D.
So, this is my problem:



(I am makin such a low-poly model, cause I want to get into blender, and understand it)
So, as you can see, I have nice alpha material (selected one), but when I render it:


It’s not alpha problem, its alpha shading problem I guess?
Please, help :smiley:
~Timmy

No blend file to look at
No information on the model mesh
No information on what renderer you are using
No information on what render settings you are using
No information on what material settings you are using
No information on what texture settings you are using

Please ALWAYS supply a blend file for support questions. Important, pack your texture into the blend file from the File / External Data menu before saving your file

If you are using the Blender Render engine and there is an object inside the object with the transparent texture did you enable it to Receive Transparent shadows in its Material / Shadows panel ?