KWin Effects The Next Generation
summary
KWin replaces ad hoc OpenGL calls with a two‑layer approach: a low‑level core that insists on fine‑grained, predictable rendering and a high‑level path that runs Qt Quick renders to an off‑screen texture so effects look like simple rectangles to the compositor. Implementation uses a shared OpenGL context, reduces C++ effect code to about 20 lines to draw a rectangle, and brings QQuick3D, particles, anti‑aliasing, drag‑and‑drop and a return of the desktop cube while keeping a path toward Vulkan.
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