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- 3D Basic Lessons
  
  A set of lessons to learn step by step and from the ground up, the most basic techniques used to render photorealistic CG pictures. Best read in chronological order.
- 3D Advanced Lessons
  
  A series of lessons on advanced 3D techniques that are used to enhance the realism of CG renders. Lessons can be read in no particular order and individually.
- 2D Image Processing
  
  A series of lessons to learn 2D techniques used in applications such as Photoshop to read write and process digital images.
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3D Advanced Lessons
Perspective and Orthographic Projection Matrix

Perspective and Orthographic Projection Matrix

1. Perspective Projection Matrix

This chapter explains intuitively how to build a perspective projection matrix that is used to project 3D points onto the image plane of a perspective camera.
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2. Orthographic Projection

Learn how to project points in world space onto the image plane of an orthographic camera using an orthographic projection matrix.
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