Vray plane light

MITVIZ

if anyone here uses vray, do you know why the plane light makes a shadow when it is turned vertical and near say a ceiling in a room? any insights would be appreciated

musashidan

By default the vray plane  light is spread equally in all directions. You can narrow the beam by increasing the directional option above 0 (turn on preview to see the effect in the viewport)

MITVIZ

yeah i know about that but i was looking for an option where i can have the light spread and not use directional parameter

musashidan

That's why it's casting a shadow onto the ceiling: because of the equal directionality. Is the light perpendicular to the ceiling or pointing straight down?

MITVIZ

perpendicular to the ceiling, in corona there is an option to hide the lights shadow just in vray am not sure 

musashidan

In vray you can disable shadows/diffuse lighting/specular/reflection on any light. Also, you could exclude the ceiling from receiving shadows from  that light.

MITVIZ

aha, i need to try the exclude from shadows option if its possible