Rendering

Transformation

2020-03-30Original-language archivelegacy assets may be incomplete

Introduction

Why Transformation
- Modeling
  - Moving the objects to the desired location
  - Multiple instances of a protostype stape
  - Kinematics of linkages/skeletons - character animation
- Viewing
  - projection transforms
Types
- Linear (preserves parallel lines)
  - Translation
  - Rotation
  - Scaling
- projection: perspective/orthographic projection
- non-linear: twists, bends, warps, morphs
Implementation: Metrics
- Representation with a $4\times 4$ matrix: Homogeneous coordinates