问题
I've been trying to teach myself SpriteKit and jumped into Raywenderlich's tutorials which said that QuadCount should be minimized for a better performance. I turned on showQuadCount, showDrawCount, showNodeCount for debugging. However, I saw quadcount is always equals to node count. Anyone can help me explain in a simple way what quadcount really is and give me an example on that quadcount is different from nodecount. (I did search google but I can not understand, so please do not give me a link without explaination). Thanks so much.
回答1:
Every node that draws something draws a quad (two triangles).
So only SKNode nodes which don't draw anything will not increase the quad count.
Also, quad count nearly isn't everything. It's more important to support Sprite Kit's internal batching by using texture atlases, and avoiding child nodes that use different texture atlas than their parent, otherwise this would interrupt batching.
来源：https://stackoverflow.com/questions/27800614/spritekit-minimize-quadcount