face_off wrote:In Octane you would set this up is up as a photographer would. In general, it is very hard (in the real world) to have a focused spotlight - you need a real spotlight for that. If you are rendering a stage for example, where you need a spotlight, I think that will be challenging with Octane. I ran a quick test, and you can put a sphere inside open ended cylinder, and then block one end of the cylinder, so the light only escapes out the other end. Parent the 3 props together so you can move and rotate then as one. Then set the sphere ambient_color to white and ambient_value to 10 and run the Octane plugin and the sphere will be an emitter. However it will not give a focused beam of light - light will escape off to the sides - because in reality I think a spotlight uses various lens' to focus the light - and that is not easily possible in Octane.
So in summary, I think you would only need to do the above if you were rendering a scene which uses real world spotlights - otherwise use the more flexible Octane lighting in the previous posts above.
Ahh! Now that's a great idea.
I really have to try this out and play around with this.
Thanks for your response, much appreciated.