Chapter 2

Geometric Pipeline

Lighting

• Final lighting equation
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• Alternative final lighting equation
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• operator ° represents componentwise multiplication
• Ambient Calculation
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• Diffuse Calculation
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• Specular Calculation
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  • Phong Equation
  • Blinn Equation
• Spotlight Attenuation options (σ = 1.0 if not spotlight)
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Filtering and mipmapping methods

Matrix Storage Methods

Transformation Matrices

Window Handedness

OpenGL thinks of the window coordinates as being right-handed. The origin (0, 0) is the lower-left corner of the window. The x-values increase as you move from left to right. The y-values increase as you move from bottom to top.

Direct3D thinks of the window coordinates as being left- handed. The origin (0, 0) is the upper-left corner of the window. The x-values in- crease as you move from left to right. The y-values increase as you move from top to bottom