Robert Penner's easing functions implemented in GLSL for use with glslify.
glsl-easings is a library that ports Robert Penner's classic easing functions to GLSL, making them available as modules for glslify. It allows developers to apply smooth, non-linear animation curves directly within shader code for WebGL or OpenGL applications. This solves the problem of implementing complex easing animations in shaders without reinventing the wheel.
Graphics programmers and creative developers working with WebGL, OpenGL, or shader-based animations who need to incorporate easing functions into their GLSL shaders.
Developers choose glsl-easings because it provides a standardized, optimized set of easing functions specifically for GLSL, seamlessly integrates with glslify for modular shader development, and saves time compared to manually porting easing algorithms.
Robert Penner's easing functions in GLSL, available as a module for glslify.
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Includes all of Robert Penner's classic easing functions such as back, bounce, elastic, and standard curves, providing a wide range of animation options directly in GLSL shaders.
Each easing function is available as a separate, requireable GLSL file via glslify, making it easy to include only what you need in shader code, as shown in the README's usage examples.
The author explicitly attempted to make the functions speedy for GLSL, optimizing them for real-time graphics, which is crucial for shader-based animations.
Based on the well-established Robert Penner easing functions, ensuring predictable and smooth animation curves that are trusted in the graphics community.
The README admits there may be unoptimized code and encourages pull requests, indicating that some functions might not be fully optimized for all GLSL environments, risking slower shader execution.
Requires the glslify toolchain for modular usage, adding setup complexity and vendor lock-in for projects not already using glslify or preferring other shader management methods.
Functions are fixed to standard signatures with no built-in support for parameter adjustments like amplitude or period in elastic easing, reducing flexibility for advanced animation needs.