Lighting not consistent between cameras in viewports question

[MGuilfoile]

Hi All, once I get a scene lit properly, I assume I can then place camera views around it and have the lighting be consistent. But even with cameras that are close together, the lighting is often way off, requiring lots of tweaking. Any advice on what might be happening? This is on Windows VW2023 SP5.

Thanks for any help on this!

MHBrown

[Andy Broomell]

Are you able to post any screenshots illustrating the issue?

[zoomer]

16 hours ago, MGuilfoile said:

I assume I can then place camera views around it and have the lighting be consistent.

 

Depends on which Render type.

In reality, if you have a building in daylight,

you will need to adjust your exposure between talking a foto

from north vs south facade.

 

If you use a physical render style you may likely adjust each camera's

exposure individually.

 

If it is old school rendering using fake lights with negative values or

deactivate light attenuation and such things, you may even need to

also tweak Materials for each perspective.

 

While in physical correct renderings, a proper PBR Material or lights

will work correctly in any kind of scene. Just like in real life, you only

need to set camera exposure for each perspective.

[MGuilfoile]

Thanks for your response. I can't post any images due to NDAs.

Each viewport and camera has the exact same settings. In fact, sometimes I duplicate the cameras. All of the renderings are of a trade show exhibit sitting in a "sound stage" with a floor, ceiling, and walls. I use spotlights to light the scene, but there may be a better way. Usually, for an exhibit that requires looking 360 degrees in various viewports, I have around four spotlights per side. I turn them on and off in the Visualization palette, but that palette is woefully lacking any good lighting controls, just on/off and shadow control, on/off. Unfortunately, VW lights don't allow you to control the falloff and only rudimentally control the beam and spread. Better lights are at the top of my wish list. I like the idea of changing the camera exposure, but my problem almost always is that some of the scene is too bright or too dim. If I can just get it all lit evenly, then I could change the camera exposure, yes? 

Thanks,

MHBrown

[zoomer]

57 minutes ago, MGuilfoile said:

I use spotlights to light the scene,

 

OK, an exhibition booth.

So no daylight scene and Spotlights sound pretty reasonable.

 

 

57 minutes ago, MGuilfoile said:

I have around four spotlights per side.

 

So if you evenly light the booth from all sides, or from the camera side

in this case, I would also expect evenly lit renders.

 

 

57 minutes ago, MGuilfoile said:

but my problem almost always is that some of the scene is too bright or too dim.

 

Do you use a RW Render Mode and Global Illumination ?

 

 

57 minutes ago, MGuilfoile said:

If I can just get it all lit evenly, then I could change the camera exposure, yes? 

 

I would rather think, if it is evenly lit, you could use the same exposure for all cameras.

 

 

 

But I do not have much imagination of what it really looks like.

So there are endless options or possibilities.

 

Maybe you could make a copy of the scene that contains your light setup,

materials, render settings and Cameras.

Get rid of the NDA stuff but replace most important things with some similar

dummy geometry, that you could upload here.

 

Edited August 27, 2023 by zoomer