specify Vray light angle

[spunk91]

I'm working on a project, where i need to specify the the correct size and angle of the light cone.

I know you can do this with a standard light, "hotspot/falloff". but is there a way to control this with a vray light?

 

 

//Niklas

[Stephen Thomas]

You can still use the spotlight with Vray. Not sure which Vray light you're referring to, but neither plane lights, dome lights nor sphere lights have a cone and the softness of shadows is related to the size of the light source. If you mean Vray IES then those are controlled by the IES file you're using.

[spunk91]

You can still use the spotlight with Vray. Not sure which Vray light you're referring to, but neither plane lights, dome lights nor sphere lights have a cone and the softness of shadows is related to the size of the light source. If you mean Vray IES then those are controlled by the IES file you're using.

 

I thought about using ies light, but i cant seem to find any guide how to create a ies profile with the exact lumen and degrees. Do you know any?

[Stephen Thomas]

There is an ies generator program available online. A quick search will find it.

[Stephen Thomas]

Spotlight might still be your best bet though if you want to make quick tweaks in realtime. Though the IES might allow you to creat a more interesting light shape. Worth experimenting to see what suits you best!

[spunk91]

Thanks, i'll play around with it :-)

[salvador]

Aligning would be easy if you already have your light setup, not targeted, using the standard align tool.

[Ismael]

There is an ies generator here http://www.nachothomas.com/downloads_english.htm

Of course, an IES file is basically the measurement of distribution of light (intensity) stored in ASCII format.

http://www.cgarena.com/freestuff/tutorials/max/ieslights/