View Full Version : Need FG suggestions
motoxpress 08-03-2006, 06:15 AM I have a product rendering I need to do that is simply a shot of the product on a white background with a little gloss on the surface of the background. Can anyone recommend some settings to accomplish this?
-gl
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mindsample
08-03-2006, 09:17 AM
white background, white groundplane with a blinn material? whats the problem?
motoxpress
08-03-2006, 01:32 PM
When I have tried a basic setup like that I have had a hard time getting Final Gather to render properly. Part of it is the lighting. I need a diffuse lighting setup as the traditional 3 point setup doesn't give you that 'look'.
-gl
mindsample
08-03-2006, 01:40 PM
When I have tried a basic setup like that I have had a hard time getting Final Gather to render properly. Part of it is the lighting. I need a diffuse lighting setup as the traditional 3 point setup doesn't give you that 'look'.
-gl
Final Gather needs an object to bounce from, create a white sphere around your scene so it can sample the color - otherwise the rays are just shooting into nothingness.
By the way, maybe FG is not what you want, is sounds more like what you are after is an AO pass with a bit of specularity mixed in
motoxpress
08-03-2006, 02:32 PM
Well, FG is the only way I have seen in Maya to get that "product photography" look. Soft shadows on the surface of the background with a little gloss on the product.
Here is an example:
http://motoxpress.com/files/labled_white.jpg
I used lobbers shader lib for this but I am trying to figure it out on my own so I understand a little more as to what is going on with it.
Does that help?
-gl
starsoul
08-04-2006, 09:54 AM
When you look at the post by wedge over here:
http://forums.cgsociety.org/showpost.php?p=3598044&postcount=1
then you will see you neither need FG nor GI to produce great results.
>You just need MR Area Lights + MR Shader like dgs (better would be ctrl_shading shader,
because it renders faster with glossy effect) ...http://yashu.go.ro/
I have summarized this thread, you can get it here: :)
http://forums.cgsociety.org/showthread.php?p=3732071#post3732071
motoxpress
08-04-2006, 06:44 PM
Thanks for the info. It looks very interesting although I am still at 6.5 so I need to update in order to look at the file setup.
-gl
starsoul
08-05-2006, 02:43 AM
If it's a ma file you can open it in a text programm like notepad and search for maya 7 and overwrite every word with maya 6 (or 6.5) save it. and load it in maya.
If it's not working here is a little description of my setup.
short tutorial:
Materials:
a) BG
- create a background like you did
- and assign a dgs material: color white: glossy specular as you like (I only increased glossy to 0.01 and change shiny (bluriness) to 5
- and assign to the same shading group a mib_photon_basic; diffuse white
- and Link your lights by selecting one light and MMB drag and drop it in the light slot of your dgs material
b) Handy
- repeat these steps for your handy model
- dgs material: color around 0.4, glossy 0.5, shiny 70
Lights:
- create a spot light > raytrace shadows > with shadow rays about 15 or so
- and play with color, intensity and decay rate
(I used for my key light an intensity of about 150, color mid grey,
and for my fill light about intensity of 80 and a white color)
Light Placement:
- put one on top of the handy
- and another to the side
Render Globals:
in your anti-aliasing settings:
- min 2 / max 3
- contrast treshhold about 0.5
=> for production quality
- and don't forget to turn on raytracing
- or use the preview settings
Hope this helps:)
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