Lerp smoothing is broken
Updated: January 22, 2025
Summary
The video explains the concept of lerp smoothing and its common use in Unity forums and applications to achieve smooth motion through a simple function. It demonstrates how a lerp function can smoothly transition between two positions with beautiful results. The video also addresses the issue of framerate dependency in lerp smoothing and introduces the concept of framerate independence by converting speed to meters per frame to ensure consistent behavior across different framerates. The introduction of a new parameter ‘r’ helps create a function that remains consistent regardless of framerate changes.
Introduction to Lerp Smoothing
Explanation of what lerp smoothing is and how it is commonly used in Unity forums and various applications to achieve smooth motion through a simple function.
Sample Code and Implementation
Demonstration of a simple lerp function to smooth motion between two positions, highlighting its ease of implementation and the beautiful results it provides.
Problem with Lerp Smoothing
Explanation of the issue with lerp smoothing leading to discrepancies in behavior due to framerate dependency, and the impact of changing framerates on the outcome.
Converting Speed to Meters per Frame
Discussion on the conversion of speed from meters per second to meters per frame to address the framerate dependency issue and ensure consistent behavior across different framerates.
Solving Framerate Independence
Exploration of the concept of framerate independence for lerp smoothing, including the introduction of a new parameter 'r' to create a function that is consistent across framerates.
FAQ
Q: What is lerp smoothing?
A: Lerp smoothing is a technique commonly used in Unity and various applications to achieve smooth motion by interpolating between two values over a specified time.
Q: What is the issue with lerp smoothing when it comes to framerate dependency?
A: The issue with lerp smoothing is that it can lead to discrepancies in behavior as it is sensitive to changes in framerate, resulting in inconsistent motion.
Q: How can the issue of framerate dependency in lerp smoothing be addressed?
A: One way to address the issue is by converting speed from meters per second to meters per frame, ensuring consistent behavior across different framerates.
Q: What is framerate independence in the context of lerp smoothing?
A: Framerate independence refers to the ability of a lerp smoothing function to produce consistent results regardless of changes in framerate, achieved by introducing a new parameter 'r' in the function.
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