over bumped and over brightened interior... help is needed

[appleseed]

Hei!

I'm in a middle of my 1st interior scene.. not going very well :S

 

Scene looks some how over brightned in overall, but still I can not get strong light through the window. And the area with the table is just a disaster(soo unnatural).

 

for the lights I use photometric area lights(2 of them, one coming throuw the window, second throuw the door) and for the sun simulation mray area light, FArea set with

 

mutiplier : 500%

energy: 6.5

gi photons: 40

 

my GI, and scene settings look like this :

 

 

Using Mentalray as a renderer, renderd my scene at resolution A4 300dpi for some thing about 36h.. really slow or it is not? Platform is PC P4 3GHz, 1 gb sdram, 100 mb video.

 

Any help and critics would be welcomed

[alfienoakes]

I know nothing about Mental Ray.. but would say this..

 

The floor looks like it is made of plastic.. not wood. The bump on it is unrealistic. Most wooden floors are in fact smooth, except for the joints between boards maybe..

 

If I am having problems with lighting.. which I regularly do.. I take it back to basics. Just use one light source, usually the brightest, and turn all the others off. Render at a low resolution and see how it looks. Then add them back in one by one..

 

Also, it looks like there is no gradual arear of shadow.. its either light, or dark..

 

Hope that is some help..

 

Oh.. and 300 dpi at A4 is a 3564 x 2520 image.. so thats quite large.. but I don't know about 36 hours...

 

Andy

[Ricardo Eloy]

To me, it looks like you have Exposure Control on. Check that, although I'm not sure how MRay handles it...

[tommyjj]

try deleting the skydome outside and making the ambient light level (press 8) white. If you want the sunlight outside to look more realistic, use a direct light and make it a little further from the window.

[appleseed]

thanks for respond.

 

Rick exposure was used indeed but I'd never thought it could spoil the result.. I'll turn it off now

 

as I'll render new images, I'll post them here.

 

 

 

Thanks again!

[Ricardo Eloy]

Oh, btw, your render time is actually high. Try rendering your scene without Final Gather and see the difference.

[notamondayfan]

and y not render at something like 640 x 480 for WIP pics? u cant see much detail at that, but u can get a good idea of lighting

[msamer]

i know 1 thing area lights take longer to render, try it with as ies sun and maybe a skylight, true they give sharper shadows if used with raytrace shadows, but i prefer ies sun and ies sky for the outside lights nothing else and add some lights inside, if required.

i agree with rick check the exposure settings, sometimes i tend to decrease the brightness and increase contrast in the log exposure settings, sure u have to increase the sun intensity to counter that, log exposure tends to wash colors away dec brightness and inc light intensity solves it a bit.

 

i would recheck the material used for the floor, the same light on the couch and table is not washing away the color, gotta check the floor material along with its bump as others pointed out

 

check the 500% multiplier and 6.5 energy in ur light ...

really good overall!

 

hey i see a light on the ground in the front viewport? whats that seems its on cause its yellow, check that out also, dunno if u forgot it or have it on purpose???

[ebad]

Hey i think you have to turn on the "Exposure control" i've tested that before .with mentalRay gets the best result.

And another thing:

You can change your light sources (Area- Spot - Omni ,...) 's mentalRay parameters and leave the defaults.

Just Increase the Energy (around 25000) and decrease the Deasy value (around 100).

I'm waiting for a better result.