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Explore the comprehensive evolution of Qt's graphics rendering architecture in this keynote conference talk spanning three decades of development. Discover how Qt's UI rendering has transformed from native paint engines in early versions Qt 1/2/3 through Qt's proprietary software rasterizer in Qt 4, the integration of OpenGL in Qt 5, and the introduction of the Render Hardware Interface (RHI) in Qt 6. Learn about the fundamental differences between Widgets with QPainter versus Quick with scene graph rendering approaches. Examine the advancements in 2D vector graphics capabilities and understand the ongoing improvements being implemented in Qt 6. Gain insights from Staff Software Engineer Eirik Aavitsland from Qt Group as he provides expert perspective on the technical decisions, challenges, and innovations that have shaped Qt's graphics rendering system over its 30-year history.
