How do you change the time of day and location in Vray?

[TomA]

I want to create an early evening / dusk shot in London.

[Three D]

just put in a daylight system as you would have in 3ds max before you used vray and then in the modify panel change the sunlight type to VRaySun. you can then change location and time/date of the sun under the motion panel.

[TomA]

Cheers v much, i knew it was straight forward but i was just being an idiot.

[Dave Buckley]

make sure you deactivate the sky in the daylight system tho if you are using vray sky, i fell for this exact same problem

[TomA]

Thanks, but does that mean that i have to delete my Vray Sun now then, if i'm using a daylight system?

[Dave Buckley]

way i do it is,

 

start with scene, no lights etc, then add in daylight system, change sun to vray sun, turn sky off, put vray sky in environment slot and away you go

[TomA]

just put in a daylight system as you would have in 3ds max before you used vray and then in the modify panel change the sunlight type to VRaySun.

 

I can't seem to choose VraySun in the modify panel, only standard or IES.

 

Is this because i'm using Max version 8 and Vray 1.5 rather than more recent versions?

[Dave Buckley]

not too sure, only used vray since the latest release with max 2009

 

sounds silly but make sure you have vray selected as your render engine

 

if all else fails you could always put in the daylight system, turn sun and sky off, put in vray sun in same place and then link it to the daylight system

 

in other words create a parent child relationship between them so that when one moves, the other moves with it.

 

nothin complicated and not sure if it will work but worth a go, then you can control position of sun using daylight system controls

[Mike.]

i put a daylight system and then a vray sun that i link to the daylight system. when i change the hour of the daylight, the vraysun moves too..

[Dave Buckley]

so it does work then

 

i'm not sure why you can't just select it from the drop down list in the daylight system

 

but hey i have never used the older versions

[monkeyman905]

I can't seem to choose VraySun in the modify panel, only standard or IES.

 

Is this because i'm using Max version 8 and Vray 1.5 rather than more recent versions?

 

Uninstall vray and reinstall i had the same problem... u prob dont have vray cam either

[whori]

yes:) it works prettty well ;)never did this, but now i am doing animation..you know...sun from morning to evening...changing shadows etc sorry for my english, but i think you understand

[Dave Buckley]

one thing to be careful of when doing night to day animations, is the exposure settings, take a look at an exposure chart and you will see that different exposures are used for different times of day.

[whori]

one thing to be careful of when doing night to day animations, is the exposure settings, take a look at an exposure chart and you will see that different exposures are used for different times of day.

 

yes i noticed that, but i guess it is not very difficult to correct it ? i mean frame by frame technique works doing this ? i mean...rendering some frames and corecting exposures with autokey could do the trick..am i right?

[Dave Buckley]

yeh i guess so, just thought i'd point it out for others reading the thread also, but yes i think you can keyframe it, never done it myself in vray