Archinect
anchor

3ds max6 lighting issue

domestic

I think i recall this maybe being a problem with max 6 that was fixed with max 8 (?) but i can't seem to render an interior shot with photometric lights in a daylight system, I have to shut off exterior lights to get interior lighting to come on. It would be great if max6 radiosity solutions produced enough ambient interior light from daylighting but it doesn't, so i have to turn on my interior lights. But is there some trick to get around this and have a radiosity solution which includes daylight and interior photometric lights?

My issue is that I have an atrium space beside the space i want renderings of and daylight from the atrium should be adding to the ambient light in the space but of course given this lighting issue it doesn't.

 
Nov 1, 06 8:07 pm
TickerTocker

vray

Nov 1, 06 8:18 pm  · 
 · 
DEVicox

or mental ray (which is included).

Nov 1, 06 10:22 pm  · 
 · 
domestic

ok, thanks, i've tried mental ray and it won't recognize the IE sun for some reason, even though i have regathering and indirect illumination on. Photometric lights won't work with mental ray so this is perhaps why? in which case how do you do get a daylight system based on photometric light to work?

But is the scanline renderer sunlight + artifical lights problem resolved in later Max releases? because i'd perfer just to do a radiosity solution with a daylight system and artifical photometric lights as my project is too big and complex to be using mental ray anyway. I like that with a radiosity solution all the time spent calculating lighting is done thus speeding up the rendering process and therefore speeding up my ability to produce and fine-tune renderings.

Nov 4, 06 12:27 pm  · 
 · 
zahand

have u tried using Advance lighting override materials with
high reflective GI levels?
maybe that could help u do your scene with only exterior lights.

Nov 6, 06 9:38 am  · 
 · 
domestic

Actually i should have my interior lights on as natural light won't strike some areas.
thanks anyway, although maybe i'll try it. :-)

but can anyone using max 8 or 9 please tell me if they can render a daylight system with artifical lights using scanline w/ radiosity?

Nov 6, 06 11:52 am  · 
 · 
Josie Truong

make sure that your IE sun is set to skylight and not IES sky otherwise it won't work. Set your parameters to date, time and location and pick a time, that way it will be more accurate; and shadows to ray traced shadows. Before you recalculate the radiosity solution, you must set your environment to logarithmic exposure control with exterior daylight turned on. Set you memory management to conserve memory and jack up the intensity of the photometric lights to 10 times the default b/c the IE sun tend to wash out the interior lights. run your radiosity solution and test it out.

Nov 6, 06 2:56 pm  · 
 · 
domestic

didn't work. switching on exterior daylight in environment automatically dims the interior lights no matter what intensity the lights are set to.

Nov 7, 06 10:20 am  · 
 · 
Josie Truong

well, how high did you adjust the intensity of the lights.?

Nov 8, 06 3:27 pm  · 
 · 
contemax
Nov 11, 06 2:32 pm  · 
 · 

Block this user


Are you sure you want to block this user and hide all related comments throughout the site?

Archinect


This is your first comment on Archinect. Your comment will be visible once approved.

  • ×Search in: