Compositing 3D Objects - MAXON CINEMA 4D R16 Studio: A Tutorial Approach - page 345

Chapter 10
Compositing 3D Objects
Learning Objectives
After completing this chapter, you will be able to:
• Composite various objects in a scene
• Work with the Camera Calibrator tag
INTRODUCTION
In computer graphics, camera is considered an essential aspect of a 3D application. The
Camera object in CINEMA 4D controls how the audience will see and interpret the image.
The cameras are used to display a viewport scene. Every viewport has a default camera,
whose settings can be modified. In addition to the default camera, the users can create as
many cameras as they want to view and render the scene from different angles.
Compositing is defined as merging visual elements from different sources in a scene or an
image to make them look as if they are all part of the same scene or image. When you com-
posite rendered images into a real world image or image sequences, one problem you might
face is the unknown camera angle and focal length. In order to convincingly composite real
world objects with 3D elements, you will have to define a Camera object in CINEMA 4D
that reflects the settings of the real world camera. You can use the Camera Calibrator tag
in CINEMA 4D to reconstruct the real world camera. To reconstruct the camera, you need
two vanishing points and two vertically stacked planes. To create the vanishing point, paral-
lel lines must be drawn on the image. These two lines form a vanishing point that you can
view in the Perspective view.
In this chapter, you will learn to add camera and composite 3D elements in a scene using the
Camera Calibrator tag in such a way that they are appear as part of one scene.
TUTORIAL