Tech Issues
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• 2D Techniques
  • Image Swapping (frame blits or movies)
  • Texture swapping on 3D characters
• 3D Techniques
  • Model Swapping
  • Model Morphing
    • Viseme Bases (one key for each viseme)
    • Muscle Based (macros of muscle moves for shape)
    • Smooth out the in-betweens
• Text-to-Speech
  • Should give you a string of Phonemes as they are spoken
• Pre-Rendered movies
  • Use any animation method you want
• Real-time techniques
  • Build the engine for the number of visemes
  • Make a script of viseme changes that correspond to the dialog track (lipsync)
    • Animation package keyframe data
    • Custom Tool