Oki thx for all your reactions, itās time to answer now 
ShunSquall : Yep in a way, sure posting my work here is a mean to be pride aboutā¦but just keep in mind that for me, the most important is to know whatās wrong in this render. Iāve worked a lot for it, and I just wanna progressā¦
thorwil & R2Blend : yeah, I understand what you mean⦠But for me the ambiance is more important than the volumetric understanding
What you have to understand is that my scene is not supposed to be a simple presentation of an object (here the concept carā¦).
Fonix Wircs : aw, your reaction just means that youāve misunderstood what the over-rendering is
So, here is an explanation. The goal of over-rendering is to done anti-aliasing with an image manipulation program (such as The GIMP). You just have to done rendering with a high resolution (like mine : 2560x1960) and then, you have to resize it in the GIMP. So why ? Just to be ok about Blenderās OSA (wich is so buggy ! %| ) and to gain about render time (with some scenes wich are full raytraced). For more information, just check out www.blenderman.org
Alex : aw sorry for this vocabulary wich sounds technicā¦itās just about some details about HOW I made this pic. No problem if you donāt understand it :-?
For the others : thx for your reactionsā¦itās good to know that your work is sometimes appreciated.
Continue to C&C !!
Cheers,