Photometrics in Vray

[TomA]

Hi,

 

I'm using Erco photometrics with Vray. I seem to have to increase the Intensity Multiplier for each light to 100000% in order to just see them. That can't be right surely can it?

 

This is for an exterior shot looking into a triple height foyer that i'm struggling with. One of the main reasons for the image is to demonstrate the lighting scheme from a lighting designer i'm working with, as well as to show off the spaces for publicity and fundraising.

 

I'm using a Vray physical camera btw.

 

T

Edited August 19, 2008 by TomA

[Dave Buckley]

Post some settings, sepcifically camera settings and render settings

[pyang]

Seems all the different light systems really don't work together. I found you basically have to turn the sun way down to just see any photometrics and/or standard light.

 

try camera for exterior = f-number 4, sutter speed 100, film speed 100

camera for interior = f-number 4, sutter speed 100, film speed 400

 

sun way down to 0.1

sky way down to 0.08

 

first bounce at 3, second bounce at 1 or 0.85

 

Hi,

 

I'm using Erco photometrics with Vray. I seem to have to increase the Intensity Multiplier for each light to 100000% in order to just see them. That can't be right surely can it?

 

This is for an exterior shot looking into a triple height foyer that i'm struggling with. One of the main reasons for the image is to demonstrate the lighting scheme from a lighting designer i'm working with, as well as to show off the spaces for publicity and fundraising.

 

I'm using a Vray physical camera btw.

 

T

[Nic H]

image or your render?

 

are you trying to make your photometrics 'unnaturally' compete with the sun by any chance? sun and sky work most logically when set at 1, and expose with camera - not other way around.

 

otherwise switch to normal spots.

[Dave Buckley]

are you trying to make your photometrics 'unnaturally' compete with the sun by any chance? sun and sky work most logically when set at 1, and expose with camera - not other way around

 

nice to see someone else on the same thinking path as me, hence why i asked for camera settings

[Devin Johnston]

I've experienced the same issues when doing an exterior day/dusk scene and wanting to see illumination inside of a building. Cranking up the multiplier is the only way to get those lights to show up. I think it's because compared to the sun/physical sky the lights are just very underpowered and since your using a physical camera set for a daylight exposure it's very difficult to make them show up.

[fadi3d]

hello guys

what nic said should put u on the right track.but i have to admit that when setting Sun and sky to 1 and exposing with your Cam u still have to struggle with your Vray or Ies multiplier.sometimes a Vray light with a mult of 1 will be burned when u up the exposer and sometimes with a mult of 6 it won't be bright enough.i guess it's got to do with the color of the light and other materials.correct me if i'm wrong and pls shed some light if u can.

thanks