Compositing 3D Objects - MAXON CINEMA 4D R16 Studio: A Tutorial Approach - page 351

Figure 10-6 The position of second line in the Perspective viewport
As soon as you place the second line, you will notice that Y Vanishing Point has been
solved in the Attribute Manager. Next, you will solve the X Vanishing Point by creat-
ing two more lines. When you will solve the X Vanishing Point , the Z Vanishing Point
will be calculated automatically.
Note
To calibrate the camera with good accuracy, at least two vanishing points must be solved.
11. Choose the Add Line button from the Attribute Manager; the third line is created in the
Perspective viewport. Next, place the line in the scene, refer to Figure 10-7.
Figure 10-7 The two red lines representing the X-axis
12. Press and hold SHIFT and then click on the line; the line turns red which represents the
X-axis.
13. Choose the Add Line button from the Attribute Manager; the fourth line is created in
the Perspective viewport. Next, place the line in the scene, refer to Figure 10-7.
14. Press and hold SHIFT and then click on the line; the line turns red.