Chapter 11

Advanced FX

WHAT’S IN THIS CHAPTER?

• Learning how to render to texture
• Learning about post-processing and implementing a bloom effect
• Learning how to use multiple render passes and combining the results to create a final rendering image
• Learning how to correctly project textures from a spot light
• Discovering how to use a Frame Buffer Object (FBO) with a depth attachment
• Implementing real-time shadows using a depth texture
• Learning the basics of a particle system

In this chapter, you will learn how to create a new range of advanced effects. You will first discover how to use the built-in OpenGL ES mechanism and be able to render your scene to a texture.

By implementing a multipass process, you will discover how to be able to reuse the offscreen textures as well as how to use them to create fullscreen post-processing effects, such as bloom.