GPUImage 3: From OpenGL to Metal
summary
GPUImage moves from OpenGL to Metal, porting Swift code that already made the project cross‑platform and shrinking the codebase to about 22% of its former size. The project replaces 170+ inline GLSL strings with bundled, build‑time compiled Metal shaders, gains simulator support, multithreaded execution and Metal Performance Shaders, and keeps the same public API so existing apps keep working while examples (about 10 sample apps) detect regressions.
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chapters (5)
- 0:00Introduction to GPUImage
- 3:42The Objective-C era
- 13:11Transitioning to Swift
- 23:06Adopting Metal
- 34:38Open source maintenance
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