Rendering with Direct3D - Direct3D Rendering - page 39

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Rendering with
Direct3D

In this chapter, we will cover the following topics:

F Using the sample rendering framework
F Creating device-dependent resources
F Creating size-dependent resources
F Creating a Direct3D renderer class
F Rendering primitives
F Applying multisample anti-aliasing
F Implementing texture sampling

Introduction

Code for rendering complex scenes can soon become quite difficult to organize. To improve
this, we will build a simple rendering framework. This framework will take care of the low-level
device and swap chain management, assist with device resource lifecycle management,
and allow the application to focus on the elements of the scene instead.

All 3D objects ultimately consist of one or more vertices that together form one of these core
primitive shapes: points, lines, or triangles. As we discussed in the previous chapter, vertices
can include information such as position, color or texture coordinate, and a normal vector.
In this chapter we will learn how to define these structures in shaders and the Input
Assembler (IA) fixed pipeline stage.

A vital component to any 3D scene is setting up the camera and projection. We will learn how
to initialize each of these and where vertices are transformed from the local object or model
space into the World/View/Projection (WVP) space (also known as clip space).