Reference Guide - ABP Nodes
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This guide lists all ABP nodes supported by the crowd animation system and details what level of functionality each node has compared to the full Unreal ABP implementation.
Before listing details, itâs worth noting there are some fundamental differences in the way the crowd animation system works on the GPU. Some properties (for example anything relating to blueprint events) will be ignored and wonât do anything. This caveat applies to all nodes, so to keep the guide short these limitations arenât listed per-node with details - if a property involves blueprint functionality, you can assume this functionality is not supported. An example of this would be the On Initial Update / On Become Relevant / On Update functionality.
Below is a list of nodes and whether they support most common functionality. If a node is supported here the node will generally do something âreasonableâ. It may not match the full Unreal ABP solution 1:1, but it will typically give a good approximation in the crowd for common use-cases.
If a node is not listed below it generally means the node is unsupported. There are a lot of nodes and this list only covers the common cases. Additional information and notes about each node can be found on the linked pages.
Common unsupported nodes
- Most features supported in a way that would be expected - Supported, but features missing or important differences to be aware of - Unsupported
Sequence Player
Blendspace Player
AimOffset Player
Random Sequence Player
State
State Alias
State Machine
Conduit
Anim Vars
Transition Properties
Transition Rules
Crowd Animation Output
Crowd Animation Switch
Crowd Animation Value Switch
Save Cached Pose
Use Cached Pose
Blend
Blend Multi
Layered Blend Per Bone
Apply Additive
Apply Mesh Space Additive
Blend by enum
Blend poses by bool / int
