Vray light intenseties and Mat ?

[fadi3d]

Hello guys

i've been tryin' to improve my renders using Vray and Lwf with the sun and sky so i have afew questions if u permit

1-setting the Vray sun and sky to 1 and adjusting the brightness with the Vray Phys Cam, how do we avoid the overburnt areas (is there like a magical setting for the cam ?)

2-in interiors with the same settings how do we know the Mult of a Vray light ? a Vray plane of say 50 cm x 10 cm should it be set to 10 mult or 30 ? is there a formula ? and what if it was colored ( i think i read Mr chris Nichols say with Lwf lights and materials should be DARKER) ok then but how much darker ?

3-for the materials do u do it by eye or is there a formula for setting the colors ? (i mean if you tested the lighting using 50 % Grey, using Lwf is this still 50 % grey or not ?)

i hope i expressed my ? properly

sorry for the long post but i know we would all benefit of someone's wisdom and experience

[fadi3d]

Not even a single i dea or a clue ?

where are all the Vray Brains ?

[Hao La]

1. For overburning area, I would suggest you to use Reinhard in Color mapping, then you can control the burning by adjust the Burn Value (lower number, less burning)

 

2. USing Sky and Sun for interior lighting is enough. If you need to use Vray plane light, you can adjust the color and multiply by eyes (until it looks good).

 

3. For materials, if using LWF, you need to use LWF for the scene from the begining so you don't have to mess around with the color of materials. Make sure your Max system gamma set to a wanted value, and when you import any texture maps, make sure you check use default system gamma in the dialogue.

[fadi3d]

1. For overburning area, I would suggest you to use Reinhard in Color mapping, then you can control the burning by adjust the Burn Value (lower number, less burning)

 

2. USing Sky and Sun for interior lighting is enough. If you need to use Vray plane light, you can adjust the color and multiply by eyes (until it looks good).

 

3. For materials, if using LWF, you need to use LWF for the scene from the begining so you don't have to mess around with the color of materials. Make sure your Max system gamma set to a wanted value, and when you import any texture maps, make sure you check use default system gamma in the dialogue.

Hello Hao La .first of all thank u for ur answer and sorry it took me long to reply i was finishing a LOOoong render to deliver.

1. i think thought the whole idea of LWF was to use linear mapping Not Reinhard ?

2. using Sky and Sun might be enough but i still couldn't find a setting without them burning the sun spot or the exterior (eg:the balcony or exterior walls or stuff hit directly by the sun) http://www.cgarchitect.com/vb/31221-latest-vray-render.html

3.i am doing as u say but if i create a texture in Pshop what should i do ?

does this apply if i EDIT a texture in Pshop ?

 

thank u and cheers mate.