IES Light - Rotation Orientation

V-Ray V-Ray for Rhino General
1

IES lights have 3 dimensional shapes. But, I cannot figure out how to verify the orientation or rotation of the IES light. When I rotate the IES light icon, I don’t see anything that tells me, “hey, this is the front and this is the back of the light”. Am I missing something obvious?

For example, I am placing light poles along a street. I’d like to know my rendering and lighting analysis are accurate according to the orientation of the pole and light fixture to the street as it curves.

Thanks, Jeff

2

Hello, Jeff,
Upon creation, IES lights are initially oriented based on the world XY axes, so if you place the light widget vertically (along Z axes), the light will appear aligned along world X and facing Y.
You make a good point, the viewport widget is not indicative of the light’s rotation. I’ve notified the dev team about this and a ticket has just been logged.

Kind regards,
Peter