Smooth Interpolation

Animate values smoothly using exponential decay instead of linear interpolation.

Technique

Use exponential smoothing formulas to interpolate between current and target values. This creates a natural easing effect that's frame-rate independent.

Key Concepts

• Exponential smoothing: (target - current) * (1 - Math.exp(-speed * dt))
• Exponential decay: target + (current - target) * Math.exp(-decay * dt)
• Both formulas produce the same result with different parameters
• Speed/decay values from 1-25 work well
• Frame-rate independent due to delta time usage

Usage