How to get BoundingBox after rotation, scale?

问题

SCNVector3 min, max;
[self getBoundingBoxMin:&min max:&max];

the returned min and max value it's base on raw size

回答1:

You can ask for the bounding box of the parentNode for the node's transform to be taken into account.

回答2:

SCNVector3 min, max;
[self getBoundingBoxMin:&min max:&max];

SCNVector3 cMin = [self convertVector:min toNode:rootNode];
SCNVector3 cMax = [self convertVector:max toNode:rootNode];

来源：https://stackoverflow.com/questions/57470541/how-to-get-boundingbox-after-rotation-scale