"The difference between Blender internal render and yafray are enormous do to a different methods used to render a scene . To make it more easy i am going to explain what yafray can do that Blender can not do but maybe fake . Yafray try to simulate light behavior like in the real world . When a light hits a wall , the wall reflects light back and this reflected light contributes to lighten the howl room . This is why even objects that are in a shadow zone get a bit light do to the reflected light of other objects . This is something Blender internal render can not reproduce .That's why you get black shadows in Blender if you use one light to lighten your scene because the walls( or any other object) don't reflect the light back when using Blenders internal render. To get a similar result , you will need to add another light to your scene to lighten the shadows but the results will not be the same because yafray lightning is more accurate .Now there is another phenomena that is called caustics . Caustics are produced when light get bend when traveling through glass and produces concentrated light pattern you can see on the table where the glass stays on . This is something Blender can not reproduce , so the only way is to fake it and the results will never be as accurate then rendered with yafray .
So you can see that the difference is that yafra reproduces the real behavior of light and objects . This method is very time consuming in calculation and that's why it takes longer to render .
Blender is optimised for fast rendering and as it don't do all this calculations , it is much faster but not accurate at all ."
hem, I took a break and I see that many questions appeared here... with obvious answers.
I should laugh but I'm quite depressed... this topic contains now too much easy/stupid/already answered questions, so it's going to be ineffective to new Blender users to look for an answer in it...
Yup takes a while. The mirror floor is a hughe timekiller. Also your on 1900x1200 render. Secondly your on a dual core. It will be better when youre on a quad. AMD is also not the best for fast rendering.
Also the new and improved V2 kit makes the render outta 25 parts.
So yes it takes time. But I tell ya more then worth it.
Well high speed memory always helps off course, but seeing on mine task manager it uses full CPU power therefor CPU demanding. So the better the CPU the faster the render.
It should be a option enable the GPU for faster renders.. I will buy a core i7 soon though so I don`t care really xD Maybe I`ll go back to blender again
If there's no option to render with GPU, it's probably because it's impossible (or too hard to make it compatible with so much GPU species). Most of renderer don't do that (actually I think no one does that).
Well you made the render so you should know how long it took .
was this render with the V1 or V2 kit ? It looks like you used the V1 kit. If so the render couldnt take that long. In V2 it could depending on your CPU speed.
btw : Nice first render, well done. I would change the background I guess, doesnt really match the car and lighting. But good try