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Nodes
Nodes are the backbone of an Inochi2D puppet, they make up all the parts of the puppet that move as well as contain data for deformation, etc.
NOTE: Inochi2D is still under active development and the Nodes are subject to change over time.
Nodes are built out of a class hierarchy, every node being a subclass of the main Node class.
Some nodes have their own special subclass (eg. Drawables), which needs to be instantiated at load time through some factory mechanism.
Every node has a typeId which can be used for this, type ids are of a string type.
Every subclassed node of a Node type contain and should encode the values of their parent class.
Here's a nonexhaustive list of current typeIds in Inochi2D
| Type Id | Mapped To | Notes |
|---|---|---|
| Node | Node | |
| Drawable | Drawables | Non-instantiatable, throw error |
| PathDeform | PathDeform | |
| Part | Part | Subclass of Drawable |
| Mask | Mask | Subclass of Drawable |
Every node has an UUID which is used in the encoded file format to allow for decoding. The UUIDs are simple unsigned integers that are randomly generated via whatever Random algorithm your language supports, (std.random.uniform in the reference implemtation's case).
When generating a UUID there's a small piece of logic that makes sure no IDs overlap.
Every node can optionally have a user specified human readable name, which can be used for indexing instead of UUIDs. They serve no other purpose than readability. Nodes that haven't been named will automatically be given the name Unnamed Node
Every node can be enabled or disabled, this prevents the node from being drawn if it can be drawn, as well as disables its own local updating to save on resources.
Nodes are sorted by their ZSort value, while Inochi2D is in a semi-3D space sorting is done on the CPU to allow for more control for the rigger to for example allow head turning to make hair appear in front of the head, and such.
See the Transforms page (NOTE: TODO)
Every node can have child nodes which inherit their parent node's transform information.