Interpolation and Extrapolation

Problem: It Doesn't Work



• Accumulation buffer can only store values in [-1...1]
• If x < -1 or x > 1, introduce a scale factor s:
  • s = max(1, 1-x)
• Equation becomes:
  • out = s( (1-x)/s * in0 + x/s * in1)
• Scale by s when returning accumulation buffer

Previous slide

Next slide

Back to first slide

View graphic version