AnchorPrefabSpawnerUtilities Class

This method calculates the local scale and pose of a prefab based on the anchor's volume, and then combines these to return a transformation matrix.

This method is used to scale a prefab when instantiating it as an anchor with a volume. If the scaling mode is UniformScaling, it scales the prefab uniformly based on the smallest axis. If the scaling mode is UniformXZScale, it scales the prefab uniformly on the X and Z axes. If the scaling mode is NoScaling, it returns a unit vector. If the scaling mode is Custom, it uses the provided custom scaling logic. If the scaling mode is Stretch, it returns the anchor's original local scale.

This method aligns the pivots of a prefab and of an anchor based on the specified alignment mode. The pivot calculations will impact where the prefab will be instantiated in the scene. If the alignment mode is Automatic or Bottom, it aligns the pivot at the bottom center of the prefab. If the alignment mode is Center, it aligns the pivot at the center of the prefab. If the alignment mode is Custom, it uses the provided custom alignment logic. It then scales the pivot point of the prefab and returns the pivot points of the prefab and the anchor.

This method selects a prefab from a list that has the closest size to the volume of an anchor. It first checks if the anchor has a volume. If not, it throws an exception. It then calculates the volume of the anchor and each prefab in the list. It selects the prefab with the smallest difference in size to the anchor's volume.

This method calculates and returns a transformation matrix for a prefab that matches the plane rect of an anchor, by determining the local scale and pose of the prefab based on the rect.

This method selects a prefab based on the specified selection mode. If the selection mode is Random, it selects a random prefab from the list. If the selection mode is ClosestSize, it selects the prefab with the closest size to the anchor. If the selection mode is Custom, it uses the provided custom selection logic.

This method aligns the pivots of a prefab and of an anchor based on the specified alignment mode. The pivot calculations will impact where the prefab will be instantiated in the scene. If the alignment mode is Automatic or Center, it aligns the pivot at the center of the prefab. If the alignment mode is Bottom, it aligns the pivot at the bottom of the prefab. If the alignment mode is Custom, it uses the provided custom alignment logic. It then scales the pivot point of the prefab and returns the pivot points of the prefab and the anchor plane rectangle.

This method is used to scale a prefab when instantiating it as an anchor with a PlaneRect. If the scaling mode is Stretch, it returns the original local scale. If the scaling mode is UniformScaling or UniformXZScale, it scales the prefab uniformly. If the scaling mode is NoScaling, it returns a unit vector. If the scaling mode is Custom, it uses the provided custom scaling logic.