need some advice on a Vray scene

[Exellite]

Hey,

 

Was wondering if anyone had some help/advice for me. I have seen quite a few interior renders that ONLY use Vraysun as a light source and acheive a nice bright clear image, the scene I'm doing atm has a vraysun in it, but alot of the room is dark, increasing the sun intensity only manages to burn out the already bright bits, how can I get sun to light the darker parts of the room?, the walls are off white and the whole room has been modeled, I guess what I want is for the light to bounce around the room more? is that right? and if so how can I do this? using max 9 and vray 1.5 RC3.

 

TVMIA, i could post the image if you need to see what I mean, but dont really want to lol, its not up to most of your's standards :S

 

 

Mark

[Exellite]

oops, sorry, i have only just noticed the vray section of the forum

 

:S

[Brian Smith]

well unless you're using the vray camera (which is about the last thing a new user should attempt), then you need to make sure the sun multiplier is down in the .01-.02 range. you could use color mapping to keep bright areas from getting too bright and dark areas from getting to dark. try exponential and adjusting the bright and dark multiplier (i like reinhart while adjusting the burn value). although you dont have to use them, i would always recommend fill lights for interiors, which at a minimum should be vray plane lights inside the windows (make sure they dont intersect any objects like the window frame or walls). having fill lights lets you also reduce the gi and image sampler quality settings, which to remove noise really needs to be higher when you dont have fill lights

[batteryoperatedlettuce]

for those fill lights I assume you'd check store with irradiance map if you were using IR?

[tedesco]

If you use "store direct illumination" you will have to increase the number of samples shot by this light, otherwise you will have great loss in detail.

[hayder3d]

this page can help you

http://www.osmosis.com.au/info/tutorials.htm

when i apply it, the result was in

http://www.cgarchitect.com/vb/23039-my-first-vray-render.html

additionally i used indoor vraylight

[Exellite]

thanks for the tips, here is the image I was talking about and someones already pointed out the darkness around the bed which is the problem area

 

http://www.cgarchitect.com/vb/23149-1st-real-interior.html

 

I have messed with darkness multiplier, looks like i need to do it some more, i also got rid of the vraycam and used normal cam and added vray lights behind the windows which illuminated much better than b4, but still not great, I just gotta keep tweaking I think

 

thanks guys

Mark