Hello,
I am trying to project light onto a mirror and see a scene by pointing tha camera to the same mirror. Something like the following image:
The thing is that if I reverse and point both the light and the camera to the scene I can observe it. If I put light on the scene and the camera pointing to the mirror I can observe it also. However if I set it up as in the picture (both, light and camera pointing to the mirror) I see nothing.
Is it possible to observe the scene like this? If so, what do I need tot do?
now if you make backwall as a mirror you can see emission plane in it and a spot light will show color in mirror
but the emission plane wont reflect on the floor from the mirror
I might have not explained myself clearly. For instance, I have an scene like the one in the picture. I do not see light on the left face of the cube. However I can see the top face of it reflected on the mirror. Is there any way of lighting the left face of this cube by reflecting light on the mirror?
where the mirror can move. I want to scan the whole scene with this sensor. With most of you have said I assume that it is not possible since the laser is a really tiny light emitter, there for, the ray coming from the camera will probably not hit the laser emitter.
So my only hope is that somebody (I’m not that good at programming) programs the ray from both camera and light at the same time… I’ll wait…
I don’t know if you can make it work for your particular situation or not. But I think you could do both the laser line on the mirror, and it’s relative bounce on the scene behind.
Play around with it, I hope it can help! (I’m not sure if this can be done for a dot-laser)
You’re basically asking for illumination by reflection, which is actually reflection caustics. Hard to get with Cycles since it is an unidirectional pathracer without fancy sampling methods (MLT is on the way though…)
