Performance of CAShapeLayer?

Question

From apple's doc and session,I think CAShapeLayer should render in render server when composited.And if shouldRasterize is disabled, the path should render every frame.

But when I profile a layer with a very complex path, seems not true. I can see the render is not happen on app side, but it is not happen every frame when I disabled rasterize, it only happen when I change the path.

Apple now cache the rendered bitmap all the time, this may consume some memory?

If apple cache the bitmap, I think it's conflict with the session above.

If the server is caching the rendered path, then the cached image consumes memory. Why do you think that is a problem? — rob mayoff, Jan 09 '16 at 05:42
If apple cache the bitmap, I think it's conflict with the session above — Karl, Jan 11 '16 at 03:00
Did you find any more info regarding how CAShapeLayer works at the render server? — bartzy, May 12 '16 at 11:28

score 0 · Accepted Answer · answered Jan 10 '16 at 21:25

0

The path rasterization process of the CAShapeLayer happens on the render server side, not on the client (app) side.

answered Jan 10 '16 at 21:25

Bartosz Ciechanowski

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More detail will be better. – Karl Jul 22 '16 at 10:03

Performance of CAShapeLayer?

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