How fast is quartz 2d

The only other thing I can think of that would be more performant would be to create CGMutablePathRef and add ellipses to it. Then at the end, do one fill. This is less flexible since you wont be able to specify the the alpha and color of each component. Have you looked into using CAShapeLayer? Instanced drawing with OpenGL or Metal sounds good. If anyone knows of a good example that might help me get started with something like the above please let me know.

Add a comment. Active Oldest Votes. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. A graphics card can render 3D graphics hundreds of times faster than a CPU and graphics cards are used to accelerate compositing of windows on the desktop for a many-fold performance increase.

Despite the advantages of graphics cards in these areas, 2D geometry on the Mac is normally generated by the CPU in main memory. You can opt to have your program drawn on the graphics card instead but this option is off by default. This 2D on the graphics card drawing is named QuartzGL. It shouldn't take you very long to guess the reason that it is disabled by default: QuartzGL does not improve all kinds of drawing. For some kinds of drawing, it will perform considerably worse than regular CPU-based drawing.

The question I hope to answer is: what kinds of operation go faster, what kinds are unaffected and what kinds might go slower? You can enable QuartzGL for your program by editing your Info. Just insert a boolean value QuartzGLEnable and set it to true. If they wanted to create a confusing naming mess, they succeeded.

The Quartz Core framework on the iPhone contains the classes and supporting elements for Core Animation and also contains items used for Core Image. Be careful however, a new single view application will link the CoreGraphics framework by default but not QuartzCore.

Python Javascript Linux Cheat sheet Contact. I am going to create many 2D iPhone Game Applications. All of them will move, rotate, scale, etc one extend to hundreds of graphic objects. For an example an aquarium with many many many fishes - each one of them move around and collect food or someting like that. Otherwise, I will need just a full hand of graphics for a racing game.

In that game you can control one car own and drive racetracks to reach the best time. But I am talking about every kind of 2D games. But Quartz2D is nice too - in view of that easy handling! Quartz is a 2D rendering library which guarantees exact results regardless of hardware.