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A note about how to implement imperative animation in this world: | A note about how to implement imperative animation in this world: | ||
CoreAnimation will ask a layer to redraw it's contents at particular timestamp. The layer can choose to do so, or ignore the request. | CoreAnimation will ask a layer to redraw it's contents at particular timestamp. The layer can choose to do so, or ignore the request. | ||
=== WebKit === | |||
Here are some observations on WebKit's implementation: | |||
Adding the style "-webkit-perspective: 800;" to a div will promote it to a layer. This seems to cause two regressions: | |||
# This content will move separately from the background. i.e. The div and the rest of the content do not move together, the div lags behind. | |||
# Having this layer also causes us to repaint all of the background content when scrolling, instead of just the newly exposed area. | |||
It would be nice if we could avoid these problems. | |||
== Bas == | == Bas == | ||