Swiftgram/submodules/AsyncDisplayKit/docs/_docs/subtree-rasterization.md

title	layout	permalink	prevPage	nextPage
Subtree Rasterization	docs	/docs/subtree-rasterization.html	layer-backing.html	synchronous-concurrency.html

Flattening an entire view hierarchy into a single layer improves performance, but with UIKit, comes with a hit to maintainability and hierarchy-based reasoning.

With all Texture nodes, enabling precompositing is as simple as:

SwiftObjective-C

[rootNode enableSubtreeRasterization];

rootNode.enableSubtreeRasterization()

This line will cause the entire node hierarchy from that point on to be rendered into one layer.