Need an invisible spot

[Jorgensen]

hi

i need to create some reflecting light on a wall, but the light source need to be invisible, and only light on the wall - not on the ceiling.

i know how to add an hidden octane light, but i can't figure out how to avoid light on the ceiling.

any tips?

thanks

[noelnoel]

i do this to do some fast renders,...

a symple plane with a texture, a fake ies light

I hope can help you this

[Jorgensen]

hi noelnoel

thanks for your reply.

i would like the spotlight to be 'real', so right now i have created a cylinder with a octane sphere light inside. by doing this i can somehow control the light, but i have to keep the spot outside of the images, as i don't won't to se the spot itself, and i don't know how to hide it :-/

but i might end up modeling some small spots in the ceiling if i can't figure it out.

i'm trying to achicve the affect as seen on image number four in this thread
http://render.otoy.com/forum/viewtopic.php?f=6&t=44147

here you can see how it looks like now
http://render.otoy.com/forum/viewtopic. ... 7&start=10

[noelnoel]

Photoshop or after effects in my case.