 So the first thing you need to do to do this is create a new spotlight. So we're going to go to create lights spotlight Now if like me you've left your projector in the center of the room it makes it quite easy to position the spotlights We need it to be within This projector into the bit that we hollowed out earlier So what I'm going to do is I'm just going to change to a different view. I'm going to use the side view And I'm going to rotate the light So that it's facing up and I'm just going to rotate it part of the way I'm going to do it all of the way Because I can then move into the channel box and I can see that I've rotated it 68 degrees on X So if I can just type 19 now, I know that'll be pointing straight up, which is what I want. I Also want to move the light up slightly so it's just kind of protruding from the shape And now I'm going to go back into the attribute editor The next thing we're going to do is we're just going to change the cone angle so at the moment you can say this Green cone represents the angle that the light is going to shine at and we want it to look like it's coming out of This cone that we've created within the projector So I'm just going to scroll down a little bit You can see there's a cone angle there and if I just move this slider You'll see that the cone angle changes on the light and I can match that up with the projector like that So that's beautiful Well, I'm also going to change there's something called a penumbra angle and that affects the softness on the edge of the light If you want to see that in action just create a spotlight in a new scene shine it something and change the penumbra angle And you'll see what it does But what I want to do is just type 30 in that box and it'll stop the edge of the light being like a perfectly drawn line It'll kind of fade which is what we're looking for As things stand with this light though, it wouldn't Be visible in the air it would just if you looked up at the ceiling you'd see a Circle of light, but you wouldn't be able to see it in the air to do that We need to create a light fog before we do that though We're going to set the color of the light and we're going to change that to being kind of a pale blue so I'm just gonna Where am I want to choose? That kind of color So my light wants to be a nice pale blue, which is beautiful I'm also going to add a decay rate to the light because I don't want this to Necessarily like this, you know, I want it to only go so far the decay rate means that the light dies off over distance So I'm going to add a quadratic decay rate Which is perfect for what I need here And it'll just mean that the the further away from the projector the light gets the more it dies off Which works really well with the fog that we're going to create So now we'll add the fog you need to scroll down a little bit to the light effects section And we're going to open that and you can see that there is a light fog Option before we change anything though before we create the fog we're going to Make sure that the intensity of it's up a little bit So we're going to turn that to five and press enter and then we're going to click on the button to add a light fog to the light and then I'm going to add a Slightly darker blue color to the fog like that and that is the light fog complete so The preview in my doesn't really show The light off so what we're going to do is I'm going to go back into my perspective view I'm just going to frame up a shot With the projector in view So something like that I think And then what I'm going to do is just test render the frame to see what this glow looks like so Here we go So there you go That's the effect we've created so you can see that there is now a blue light and the idea is that that light is Part of the the holographic projection that's being created again I'm just going to turn this off So you can now get a better feeling of why the room's so dark because there's a projection happening And that's quite bright in the scene, which is what we wanted. So that is Another light placed and we're making some damn fine progress. Yes Okay, I'm gonna close that window