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Mercedes CLS 500 AMG

Posted: Sun Jan 16, 2011 3:21 pm
by infernoVFX
Greetings Octaners,

Here's something I've been working on. There's still a lot to be done on this model (its my model BTW.) but i had to quickly export this "bad boy" to Octane and do some test rendering :) I'll update this thread as i progress with the project. This might be an entry for the new year competition but i'm not sure if i'll be able to finish this on time.

Some specs:
Modeling done in Maya 2011
Tires and all the textures done in Zbrush 4.0
Rendering done in Octane 2.3 v5
Res 2048x1024, pathtracing, maxdepth 16, 2048 samples
Render time: images 01,02,03 around 6 min / image_04 8 min
No postprocessing - directly out of Octane
MercRender_01.jpg
MercRender_02.jpg
MercRender_03.jpg
MercRender_04.jpg
OctaneScreen.jpg
Thank you all for watching comments are welcome.
All the best,
Voja

Re: Mercedes CLS 500 AMG

Posted: Sun Jan 16, 2011 8:49 pm
by Skeletor
Stunning! If you look at the door though there seems to be a problem. The shading looks like the door is not streamlined if that makes sense.

Re: Mercedes CLS 500 AMG

Posted: Mon Jan 17, 2011 7:38 pm
by infernoVFX
Skeletor wrote:Stunning! If you look at the door though there seems to be a problem. The shading looks like the door is not streamlined if that makes sense.

Thank you for your comment. This shader is overly reflective, almost chrome like, just used to check the surface quality. The car will look far more better than this, i've spent only 30 - 40 minutes on the render setup.

Regards,
Voja

Re: Mercedes CLS 500 AMG

Posted: Mon Jan 17, 2011 8:19 pm
by Skeletor
It's not the shader that concerns me it's the actual geometry which seems to be a little off at the doors edges

Re: Mercedes CLS 500 AMG

Posted: Sun Jan 23, 2011 6:44 pm
by adrencg
looks too aluminum. Maybe too much reflection blur.

Re: Mercedes CLS 500 AMG

Posted: Tue Jan 25, 2011 10:35 pm
by rman1974
It doesn't look like a carpaint. That's because material has only one layer. Metallic carpaint contains at least two layers - metallic base and polish on top of it. In octane this can be done via mix of two material - one is glossy material with high roughness (metallic base), second is glossy too but with zero roughness (polish). Check two attached pictures. Mix material looks much more like carpaint than simple glossy material. In good carpaint shader you have to do some additional features - flakes for metallic layer (coz it's not uniform, it consists of tiny metal particles), some roughness and bump for polish layer (coz in real life polish isn't absolutely flat), but for medium and long shots mix material is ok. Good luck! :)

Re: Mercedes CLS 500 AMG

Posted: Wed Jan 26, 2011 8:00 am
by 9fly
@rman1974: Thank you for your explanation. I want to ask what is wrong with the sample image. Is that affection to other edges too?

Re: Mercedes CLS 500 AMG

Posted: Wed Jan 26, 2011 8:21 am
by abstrax
9fly wrote:@rman1974: Thank you for your explanation. I want to ask what is wrong with the sample image. Is that affection to other edges too?
That's a problem of the material ball geometry not of the material itself.

Re: Mercedes CLS 500 AMG

Posted: Wed Jan 26, 2011 8:22 am
by face
9fly wrote:@rman1974: Thank you for your explanation. I want to ask what is wrong with the sample image. Is that affection to other edges too?
Thats called the terminator problem.
It´s a problem to calculate the right normals from two polygons.
http://www.refractivesoftware.com/forum ... tor#p44448

face

Re: Mercedes CLS 500 AMG

Posted: Wed Jan 26, 2011 12:18 pm
by mlody47
Just to be clear.

In real life I have a car (custom build nissan 200sx s13) with matte paint finish. So please dont tell the others that car paint is always reflective and its always 2 layers or more., becouse its not :)

this is newer version - s15 and it rox :) with matte paint which I personally love more than the standard one....

Make this SL in matte finish PLEASE!!! edit: but make it black!!! :mrgreen: