Camera Projection - Nuke 101: Professional Compositing and Visual Effects - page 486

You now have a screen with a frame. Hoorah. You used a separate tree for this.
You'll need to connect it up now ( FIGURE 11.41 ).
Figure 11.41. The screen tree.
Compositing the screen into the 3D scene
You can connect this screen to the 3D camera projection scene in many ways, but in my
opinion, for this purpose, compositing it on the original image is probably going to be the
best thing. Use a CornerPin and a Merge to do that.
1. Insert a CornerPin node after Merge6.
2. Select CornerPin1 and insert another Merge node after it.
3. Insert Merge7 in between Read1 and Project3D1.
4. View Merge7.
Use the CornerPin node to place the screen in perspective.
5. Move the four pins to place the screen on the front building in a convincing way.
Use the lines created by the windows for correct perspective ( FIGURE 11.42 ).
Figure 11.42. The screen in perspective.