Rendering Models with the environment set to white.

[Neil Woodhouse]

Hi All,

 

I'm producing some models ( light fittings ) for a client. The client wants these on a white background, the background i previousley used was white as were my VRay lights, sadly i wasn't producing the effect that he wanted. So...i have turned the environment white and turned the multipliers on my 2 vray lights down to 0.2. I am still getting burn out. The models are simple cylindrical type lights with a brushed metal casing, they need to stand out from the background. I thought about using Boomer Labs 'Saturation' Plug-in but it won't work in MAX 9.

 

I've looked thru' the ref manuals to see if i can find anything on colour saturation, but what is there doesn't make sense.

 

Any thoughts folks?, any handy hints etc? I can supply an image if required or the MAX file.

 

Regards

 

Neil Woodhouse

[rivoli]

I'm not sure I get what you mean, maybe an image would help.

[Neil Woodhouse]

I'll go one better. Here's the MAX file. VRay 1.5 RC3. It's fairly basic in it's setup but you will get the idea.

 

Neil

[Tim Saunders]

But if you want help from non-max9 users, post an image showing the problem. Your explanation is a little vague.

[aaron-cds]

Neil, making the background white will affect the rendering. The only workaround that comes to mind (most likely not the only way) is to render it as a tga file with the background of your choice. Then, in photoshop, select the alpha channel and make the background white.

[Neil Woodhouse]

Thanks Timothy, i should have remembered.

 

Here are 2 images:

 

Test1: Infinate Background = White.

Vray Lights ( one left, one right ) = White.

Vray Environment = On.

 

Test2: As above but with the Environment light off. Note the burnout. What i need to see is the object standing out against the background. I'm at a loss as to how to do this.

 

Any help will be much appreciated.

 

Neil

[Nic H]

Why dont you have a background object and put it to -1 in vray matte? Then render as a tga / png and adjust the background colour in post?

[kippu]

studio setup .... there are some threads on chaos forum to work on studio setup ... basically you set up a curved plane and set up lights ....its more detailed there ... search for "Studio setup"

[Mechadus]

I agree - really seems like rendering it with an alpha channel and just fixing it in photoshop would be the ticket... It would probably work in MAX with the white background if you used a reflection map, like a nice shiny HDR or something.

 

-Nick Kropat

[Tommy L]

When you have a chrome/shiny object, the surface is very dependent on reflection. You can search for a studio HDRI, which is a map that simulates the lighting you find in things like car commercials etc.

[AJLynn]

Alpha it out or use Vray to override the GI and reflection environments. All your raytraces returning white makes Vray spaz.

[Tommy L]

spaz.

 

good word well said.

[innerdream]

This may help.

http://www.cgarena.com/freestuff/tutorials/max/studiolighting/index.html

[sterealkey]

You can keep it on the white infinite plane, but pop an HDR in your material's environment slot. This should already give you much nicer results.

 

And sometimes, depending on your camera angle, it happens that too much of the white plane still reflects on your object, then simply exclude the plane from reflections and voila

 

I have to render stuff on white backgrounds all the time, so I pretty much nailed it, I think

[Neil Woodhouse]

Thanks to all that responded. I got it sorted.

 

For future ref this is how i did it:

 

Deleted the infinate background which returned me to max's standard environment. Increased the size of the v-ray lights, doubled the intensity of both lights. Then rendered the image as a saved .tga file with the split alpha box ticked. Opened it in Photoshop and bingo white background.

 

Thanks Guys

 

Neil