Omni and target lights not working with a daylight system!!

[tillywhitwell]

Hi everyone, new to this site so please be gentle.

 

Just getting back to using 3Ds Max after learning it at uni and not using for the past year. Ive created an exterior scene with a daylight system. I was looking to create a glow coming from the windows of the house but none of the other lights seem to be working with the daylight system, especially as the mr photographic Exposure Control is set to the preset of Physically Based Lighting, Outdoor Daylight Clear Sky.

 

Please can someone help. Im using a mental ray renderer.

 

Thanks

[tillywhitwell]

Hi George, I think you've misunderstood. Im trying to create a glow coming out from the windows. None of the lights I insert into my scene seem to be working since I set the Daylight system.

[inpow watir]

Use fx available in environment background? (F8) is that what you after?

[Francisco Penaloza]

I would recommend to use a spot light instead, as source for your fog light, also change your exposure from physical units to unitless, this way the intensities of all lights and effect within max that are not "photometric" can match the intensities of Photometrics lights.

[Josef Wienerroither]

A daylight system has an intense brightness and your photographics exposure control simply adjusts the exposure for that. You can verify that by setting your daylight systems sun to use a standard light, it's intensity multiplier should get adjusted to tens of thousands then.

Thus all other standard lights ( intensity multiplier 1 by default) will be far too weak to show any result in this scene,that's the reason you should use photometric lights. If you still insist using standard lights, you have to crank up their intensity accordingly to have them any visible effect in the scene ( too into the tens of thousands range )

Edited October 12, 2015 by spacefrog

[tillywhitwell]

Thanks Josef. I would use photometric lights if I could however I can not get any other light source to emit anything other than the daylight system. Ive tried photometric free lights, standard Omni's, skylight etc etc etc and tried cranking up the intensities like you have suggested.

 

could there be a setting that I have changed in the daylight system? I have used the arch and design mental ray glass thin geometry on my windows, where I want the glow to come out from. could it be something to do with that?

[tillywhitwell]

strangely enough, after just adding a standard target spot with an intensity of around 1, it has decided to show up. I'm not sure what is going on but thank you for your help and suggestions.

[Francisco Penaloza]

again, fog won't work with the sun/sky system, use a spot light, and change your exposure to uniteless, that will compensate the intensity, so you don't end up with a intensity of millions.