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What are the main differences between linear and cubic interpolation in animation?

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What are the main differences between linear and cubic interpolation in animation? Pending Review

Asked on Mar 20, 2026

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Linear and cubic interpolation are both methods used to calculate in-between frames or values in animation, but they differ in how they handle motion transitions. Linear interpolation creates a straight, constant rate of change between keyframes, resulting in uniform motion. In contrast, cubic interpolation uses curves to create smoother transitions, allowing for more natural easing in and out of movements.

Example Concept: Linear interpolation connects keyframes with straight lines, leading to a constant speed and abrupt changes at each keyframe. Cubic interpolation, however, uses Bezier curves or similar methods to create smooth, gradual transitions, enhancing the fluidity and realism of the motion by allowing for acceleration and deceleration.

Additional Comment:

Linear interpolation is simpler and computationally less intensive, making it suitable for basic or mechanical motions.
Cubic interpolation is preferred for character animation and scenarios requiring more expressive and lifelike movements.
Understanding the differences helps in choosing the right interpolation method for the desired animation effect.

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What are the main differences between linear and cubic interpolation in animation? Pending Review

Asked on Mar 20, 2026

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