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marshalartist
09-20-2007, 09:44 PM
Here is my first attempt, I have no idea what I am doing I just tweaked Franz's scene. I am finding it hard to adjust the materials how I would like.
Any pointers on a decent Paint shader?
http://www.marshalstudios.com/temp/CarR1.jpg

MrBraun
09-20-2007, 10:23 PM
Try This, is a blu car shader ! ;)

http://www.computergrafica3d.com/utenti/mrbraun/blu.zip

MrBraun
09-20-2007, 10:27 PM
Or this like the color of your scene! ;)


http://www.computergrafica3d.com/utenti/mrbraun/metalised.zip

MrBraun
09-20-2007, 10:42 PM
Much better than the other! ;)

Try this! :D


http://www.computergrafica3d.com/utenti/mrbraun/new.zip

MrBraun
09-20-2007, 10:55 PM
I forget: cool car model! :)

My compliments! :)

marshalartist
09-20-2007, 11:00 PM
http://www.marshalstudios.com/temp/CarR2.jpg

Thanks for that I will study the shader, looks much better. I have been having problems with RAM though, out of memory. I have a Quad MacPro with 6Gig of RAM. I have had to Hide the wheels on the far side or it will not work.

marshalartist
09-20-2007, 11:02 PM
Thanks again I will try your new shader

MrBraun
09-20-2007, 11:05 PM
Great result!

Try this material, i think that is much better! :)

http://www.computergrafica3d.com/utenti/mrbraun/new1.zip

marshalartist
09-20-2007, 11:21 PM
http://www.marshalstudios.com/temp/CarR3.jpg

This is your latest shader it takes the light differently more shadow than the others, thanks

MrBraun
09-20-2007, 11:26 PM
Is necessary to tweak the Fresnell into Diffuse channel: try to reduce the black ribbon or use a light grey gradient! ;) :)

marshalartist
09-20-2007, 11:38 PM
http://www.marshalstudios.com/temp/CarR4.jpg
I took it down to 0.35 and adjusted the exposure slightly, much better I think, thanks for your help

marshalartist
09-21-2007, 12:38 AM
http://www.marshalstudios.com/temp/CarR5.jpg

I am struggling with transparancy now. How can I make the glass more transparant?

DanieleF
09-21-2007, 02:19 AM
Just check the "affect shadows" parameter in the Refraction layer of the VrayMaterial.
With 5 speculars you should also be able to create a very realistic car paint material.

Cheers
Daniele

sketchbook
09-21-2007, 06:28 AM
crap, did you say out of memory for such a simple scene? no way half the things i do will render if that is the case.

marshalartist
09-21-2007, 09:47 AM
Just check the "affect shadows" parameter in the Refraction layer of the VrayMaterial.
With 5 speculars you should also be able to create a very realistic car paint material.

I was obviously working to late last nite, I was adjusting the wrong Glass material. I am still having no luck though even on the right material. The shaders look quite complex compared to C4D, I think it will take a bit of time to used to. It would be great if some one posted a set of basic shaders for us to study to get a head start, glass for instance would be a start.
My memory problems were down to building the car in symmetry I made the whole thing editable with the Hypernurb settings very high so the poly count was considerable.

marshalartist
09-21-2007, 10:11 AM
Getting closer

http://www.marshalstudios.com/temp/CarR6.jpg

Mike A
09-21-2007, 10:18 AM
Re the memory issues: what is the poly count in this scene?

RenatoT
09-22-2007, 01:30 AM
I have had to Hide the wheels on the far side or it will not work.

Really? How many polygons have this scene? (ctrl+i)

Will be good also a wire rendering of this last camera :)

Thanks
Renato

marshalartist
09-22-2007, 02:39 AM
Sorry I think it was just user error, I have got it to work now without hiding anything. In my haste to get the car finished for a job I had forgoton to reduce the Hypernurb settings for the tyres after swopping them from a simple no tread version to the ones you see. They had more poly's than anything else in the scene.

d3d-design
09-22-2007, 10:19 AM
there are not enough objects in the room that reflect on the car's surface.
try to add some lighting objects to the wall...

something like this for example...
http://img340.imageshack.us/img340/3301/05ha6.jpg

-
chris

marshalartist
09-22-2007, 06:44 PM
Thanks Chris I did place some black and wite placards around the room but the compositing tags did not work and I did not want them visible in the render. The object was not to get a finished piece of art out of it I have already done with the normal C4D renderer for a printed ad and was happy with it after a whole day of Photoshop work on it. I am just testing the water with shaders and lighting and the camera tag. Nice model you have there!