blender::nodes::value_elem Namespace Reference

Classes
struct	BoolElem
class	ElemEvalParams
struct	ElemVariant
struct	FloatElem
struct	GroupInputElem
struct	IntElem
class	InverseElemEvalParams
struct	MatrixElem
struct	PrimitiveValueElem
struct	RotationElem
struct	SocketElem
struct	ValueNodeElem
struct	VectorElem

Functions
std::optional< ElemVariant >	get_elem_variant_for_socket_type (const eNodeSocketDatatype type)
std::optional< ElemVariant >	convert_socket_elem (const bNodeSocket &old_socket, const bNodeSocket &new_socket, const ElemVariant &old_elem)

Detailed Description

A #ValueElem is an abstract element or part of a value. It does not store the actual value of the type but which parts of it are affected. For example, #VectorElem does not store the actual vector values but just a boolean for each component.

Some nodes implement special #node_eval_elem and #node_eval_inverse_elem methods which allow analyzing the potential impact of changing part of a value in one place of a node tree.

The types are generally quite small and trivially copyable and destructible. They just contain some booleans.

Function Documentation

convert_socket_elem()

std::optional< ElemVariant > blender::nodes::value_elem::convert_socket_elem	(	const bNodeSocket &	old_socket,
		const bNodeSocket &	new_socket,
		const ElemVariant &	old_elem )

Converts the type of a value element if possible.

Definition at line 29 of file value_elem.cc.

References blender::nodes::value_elem::FloatElem::all(), blender::nodes::value_elem::VectorElem::all(), blender::nodes::value_elem::RotationElem::angle, blender::nodes::value_elem::RotationElem::axis, ELEM, blender::nodes::value_elem::ElemVariant::elem, blender::nodes::value_elem::RotationElem::euler, get_elem_variant_for_socket_type(), blender::nodes::value_elem::MatrixElem::rotation, SOCK_BOOLEAN, SOCK_FLOAT, SOCK_INT, SOCK_MATRIX, SOCK_ROTATION, SOCK_VECTOR, and bNodeSocket::type.

Referenced by blender::nodes::gizmos::build_tree_gizmo_propagation(), blender::nodes::inverse_eval::propagate_socket_elem(), and blender::nodes::inverse_eval::propagate_value_elem_filtered().

get_elem_variant_for_socket_type()

std::optional< ElemVariant > blender::nodes::value_elem::get_elem_variant_for_socket_type

(

eNodeSocketDatatype

type

)

Get the default value element for the given socket type if it exists.

Definition at line 9 of file value_elem.cc.

References SOCK_BOOLEAN, SOCK_FLOAT, SOCK_INT, SOCK_MATRIX, SOCK_ROTATION, and SOCK_VECTOR.

Referenced by convert_socket_elem(), blender::nodes::inverse_eval::find_local_inverse_eval_targets(), blender::nodes::gizmos::foreach_active_gizmo_in_open_node_editor(), blender::nodes::gizmos::get_editable_gizmo_elem(), and blender::nodes::gizmos::get_gizmo_socket_elem().