Logarithm

Creates a dynamic path that represents the motion of a TransformObject by sampling the translate, rotate, and scale parameters from an animation stack.

dynamicpath::LoadFromArray

Creates a dynamic path from arrays of positions, times, and source times.

dynamicpath::LoadFromChannels

Creates a dynamic path by sampling a set of X, Y, and Z channels.

dynamicpath::LoadFromGeometry

Loads a dynamic path from the geometric representation of a dynamic path.

dynamicpath::LoadFromGraph

Constructs dynamic paths by evaluating Matrix4 outputs of a graph over time.

dynamicpath::LoadFromGraphChannels

Constructs dynamic paths by building a parameter dictionary for a graph from a channel collection, and evaluating Matrix4 outputs of the graph over time.

dynamicpath::ProjectileLifeFromPlane

Computes the life of a projectile arc based on the start position, end position, and maximum height of the projectile in a given direction.

dynamicpath::ProjectilePathEvaluatePeak

Determines the peak of a projectile path.

dynamicpath::ProjectilePathFromLife

Creates a dynamic path representing the arc of a projectile that is launched between two positions in a specific amount of time.

dynamicpath::ProjectilePathFromPlane

Creates a dynamic path representing the arc of a projectile that is launched between two positions while skimming a height plane.

dynamicpath::ProjectilePathFromSpeed

Creates a dynamic path representing the arc of a projectile that is launched between two positions with a specific initial speed.

dynamicpath::ResolveTweakTargets

Solves for a dynamic path using the Tweak algorithm.

dynamicpath::SaveToGeometry

Creates a geometry from a dynamic path.

dynamicpath::Subtract

Subtracts one dynamic path from another.

fbik::GetBoneTransform

Gets the transform of a bone in a full body IK skeleton.

fbik::GetCenterOfMass

Computes the center of mass of a full body IK skeleton.

fbik::SetComTarget

Sets a center of mass target on a full body IK solver.

fbik::SetSkeleton

Sets a skeleton on a full body IK solver.

fbik::SetTarget

Sets a target on a full body IK solver.

fbik::SetTargets

Sets multiple targets on a full body IK solver.

fbik::SetTargetsFromDict

Sets targets on a full body IK solver from a dictionary.

fbik::SetTargetsFromGeo

Sets targets on a full body IK solver from a geometry.

fbik::SkeletonFromGeo

Gets a full body IK skeleton stored in geometry.

fbik::SkeletonUpdateGeo

Updates geometry using information from a full body IK skeleton.

fbik::SolveFABRIK

Solves a full body IK skeleton using the FABRIK algorithm.

fbik::SolvePhysIK

Solves a full body IK skeleton using the PhysIK algorithm.

fbik::Solver

Creates a full body IK solver from a full body IK skeleton.

fbik::Target

Creates a full body IK skeleton target.

geo::AddPacked

Creates a packed primitive that contains the given geometry.

geo::ArrayAttribValue

Returns the values of an array attribute.

geo::AttribIntersectPoints

Performs ray intersection with a geometry and computes weights for nearby points, outputting the weights as geometry attributes.

geo::BoundingBox

Returns the bounding box of a geometry.

geo::CopyDetailAttrib

Copies a detail attribute between two geometries.

geo::DetailAttribValue

Returns the value of a detail attribute.

geo::ExtractPackedGeo

Returns the geometry embedded in a packed primitive.

geo::FindPointAttribValue

Finds all points in a geometry with a given attribute value.

geo::FindPrimAttribValue

Finds all primitives in a geometry with a given attribute value.

geo::FindVertexAttribValue

Finds all vertices in a geometry with a given attribute value.

geo::ForEachPointBegin

Defines the start of a for-each loop that iterates over the points in a geometry.

geo::ForEachPointEnd

Defines the end of a for-each loop that iterates over the points in a geometry.

geo::ForEachPrimBegin

Defines the start of a for-each loop that iterates over the primitives in a geometry.

geo::ForEachPrimEnd

Defines the end of a for-each loop that iterates over the primitives in a geometry.

geo::FromDisk

Returns a geometry from a geometry file read from disk.

geo::GlobPoints

Returns an array of points based on a pattern.

geo::GlobPrims

Returns an array of primitives based on a pattern.

geo::GuideDeform

Deforms groom geometry based on a joint skeleton and skin surface.

geo::InitIntersectCache

Computes an intersection cache for a geometry.

geo::Intersect

Determines the intersection point of a ray with an intersection cache.

geo::IntersectPoints

Performs ray intersection with a geometry and computes weights for nearby points, outputting the weights in an array.

geo::Lattice

Deforms geometry based on the reshaping of a control lattice.

geo::Merge

Merges the points and primitives from other geometry objects into this geometry.

geo::MergePacked

Packs each input and merges them together into a single geometry.

geo::NumPoints

Returns the number of points in a geometry.

geo::NumPrims

Returns the number of primitives in a geometry.

geo::PointAttribValue

Returns the value of a point attribute.

geo::PointAttribValuesByName

Returns the values of an attribute on the points that match a second attribute name.

geo::PointPrims

Returns all the primitives that contain a given point.

geo::PrimAttribValue

Returns the value of a primitive attribute.

geo::PrimAttribValuesByName

Returns the values of an attribute on the primitives that match a second attribute name.

geo::PrimPoints

Returns all the points on a given primitive.

geo::PrimUV

Interpolates the value of an attribute at a parametric (UVW) position.

geo::Replace

Replaces the contents of a geometry object with another geometry object.

geo::SetAgentTransforms

Overrides the transforms of an agent primitive.

geo::SetDetailAttribValue

Sets a detail attribute value on a geometry.

geo::SetPointAttribValue

Sets a point attribute value on a geometry.

geo::SetPointAttribValues

Sets the value of a given attribute on all the points in a geometry.

geo::SetPointAttribValuesByName

Sets the value of an attribute on the points that match a second attribute name.

geo::SetPrimAttribValue

Sets a primitive attribute value on a geometry.

geo::SetPrimAttribValues

Sets the value of a given attribute on all the primitives in a geometry.

geo::SetPrimAttribValuesByName

Sets the value of an attribute on the primitives that match a second attribute name.

geo::SetVertexAttribValue

Sets a vertex attribute value on a geometry.

geo::SetVertexAttribValues

Sets the value of a given attribute on all the vertices in a geometry.

geo::SetVertexAttribValuesByName

Sets the value of an attribute on the vertices that match a second attribute name.

geo::Transform

Transforms a geometry using a transformation matrix.

geo::UpdatePackedGeo

Embeds a geometry into a packed primitive, replacing the primitive’s contents.

geo::VertexAttribValue

Returns the value of a vertex attribute.

geo::VertexAttribValuesByName

Returns the values of an attribute on the vertices that match a second attribute name.

geoutils::CopyToPointsTargetAttribs

Sets up default target attributes for use in sop::copytopoints.

geoutils::DottedLine

Creates a dotted line geometry.

geoutils::Translate

Translates a geometry.

geoutils::UniformScale

Scales a geometry by a scale factor along the x, y, and z axes.

geoutils::Wrangle

Runs a VEX snippet on the incoming geometry.

graph::AddNode

Adds a node to an APEX graph.

graph::AddNodeToSubnet

Adds a node to a subnet in an APEX graph.

graph::AddOrUpdateNode

Adds or updates a node.

graph::AddSubnet

Adds a subnet node to an APEX graph, and sets the contents of the subnet.

graph::Compile

Compiles a graph and reports any execution errors.

graph::ConnectInput

Connects two APEX node ports given the port IDs.

graph::DefaultParms

Gets the default parameters of an APEX graph.

graph::DeleteNode

Deletes a node from an APEX graph.

graph::DeleteNodes

Deletes a set of nodes from an APEX graph.

graph::DisconnectPort

Disconnects the wires connected to the specified port.

graph::DuplicateNode

Duplicates the input node.

graph::EvaluateOutputs

Evaluates outputs from an APEX graph.

graph::FindAndConnectInput

Connects two APEX node ports given the node IDs and port names.

graph::FindAndRemoveWire

Removes the wire connecting the specified source and destination ports.

graph::FindFirstNode

Returns the first matched node in an APEX graph based on a pattern.

graph::FindFirstPort

Returns the first matched port in an APEX graph based on a pattern.

graph::FindNode

Finds a node in an APEX graph based on a node path.

graph::FindNodeInput

Finds an input port on an APEX node.

graph::FindNodeOutput

Finds an output port on an APEX node.

graph::FindNodeTags

Finds the tags of a node based on a pattern.

graph::FindNodes

Finds an array of node IDs in an APEX graph based on a pattern.

graph::FindOrAddNode

Finds or adds a node to an APEX graph.

graph::FindOrAddPort

Finds or adds a port or subport on an APEX node based on a port name.

graph::FindPort

Finds a port on an APEX node based on a port name.

graph::FindPorts

Finds the ports in an APEX graph based on a pattern.

graph::FindUniqueNodeName

Returns a unique node name given a desired name.

graph::GetConnectedNodes

Finds all APEX nodes that have a direct wire connection to a given port.

graph::GetConnectedPort

Finds the port that is connected to a given port.

graph::GetConnectedPorts

Finds all ports that have a direct wire connection to a given port.

graph::GetPromotedPort

Finds the promoted graph input or output port that is connected to a given port.

graph::GetSubPort

Finds or adds a subport to a variadic port.

graph::GetSubnetContents

Gets the contents of an APEX subnet node.

graph::GraphInputs

Finds all the top-level parameter input ports of an APEX graph.

graph::GraphOutputs

Finds all the top-level output ports of an APEX graph.

graph::HasNodeTag

Checks if a tag exists on a node.

graph::HasNodeTags

Checks if multiple tags exist on a node.

graph::IfConnected

Determines whether an input port to a subgraph or subnet is connected, and returns either that port’s value or a fallback value.

graph::Invoke

Invokes an APEX graph.

graph::IsConnected

Determines whether an input port to a subgraph or subnet is connected.

graph::Layout

Creates a default positional layout of a selection of APEX nodes.

graph::LoadFromGeometry

Loads an APEX graph from geometry.

graph::Merge

Merges the contents of an APEX graph into an existing graph.

graph::NodeData

Gets the data for a node in an APEX graph.

graph::NodeInputs

Finds all the input ports on an APEX node.

graph::NodeOutputs

Finds all the output ports on an APEX node.

graph::PackSubnet

Packs an array of APEX nodes into a subnet.

graph::ParentNodes

Parents two nodes in a graph.

graph::PortData

Gets the data for a port in an APEX graph.

graph::PortNode

Gets the node that contains a given port in an APEX graph.

graph::PromoteInput

Connects a port to an APEX graph input.

graph::PromoteNodeInput

Promotes an input port to the graph’s parms node.

graph::PromoteNodeInputs

Promotes multiple input ports to the graph’s parms node.

graph::PromoteNodeOutput

Promotes an output port to the graph’s output node.

graph::PromoteNodeOutputs

Promotes multiple output ports to the graph’s output node.

graph::PromoteOutput

Connects a port to an APEX graph output.

graph::PromotePort

Promotes a port to the graph’s parms or output node.

graph::Properties

Gets the properties of an APEX graph.

graph::RenamePort

Sets the name of an input port, output port, or subport.

graph::ReplaceNodeTag

Finds and replaces a tag on a node.

graph::RewireOutputs

Rewires the output ports on a node in an APEX graph.

graph::SaveToGeometry

Writes an APEX graph to geometry.

graph::SetDefaultParms

Updates the default parameter dictionary of an APEX graph.

graph::SetProperties

Updates the properties dictionary of an APEX graph.

graph::SetSubnetContents

Sets the contents of a subnet in an APEX graph.

graph::Sort

Sorts an APEX graph.

graph::Template

Compiles its internal subnetwork and outputs it as an APEX graph handle object.

graph::UnpackSubnet

Unpacks a subnet in an APEX graph.

graph::UpdateControls

graph::UpdateNode

Updates a node in an APEX graph.

graph::UpdateNodeParms

Updates the parameters on a node in an APEX graph.

graph::UpdateNodeProperties

Updates the properties of a node in an APEX graph.

graph::UpdateNodeTags

Updates the tags on a node in an APEX graph.

graphutils::AcceptsSubport

Returns whether a port can have subports.

graphutils::NodeAncestors

Returns all the subnets that contain a given node.

graphutils::NodeCallbackName

Returns the callback name of a node.

graphutils::NodeName

Returns the name of a node.

graphutils::NodeParent

Returns the parent subnet of a node.

graphutils::NodeParms

Returns the parameters on a node.

graphutils::NodePath

Gets the path for a node ID in an APEX graph.

graphutils::NodeProperties

Returns the properties of a node.

graphutils::NodeTags

Returns the tags on a node.

graphutils::OuterPort

Returns the outer port of a subport.

graphutils::PortPath

Gets the path for a port ID in an APEX graph.

guide::AddSetPointTransforms

Adds a skel::SetPointTransforms node to the graph.

guide::ControlsFromGuides

Adds or updates the TransformObject nodes for the joints in a guide skeleton.

guide::FindOrAddGuide

Finds or adds guide geometry.

guide::FindPrimaryAxis

Finds the primary axis of a joint.

guide::SetGuideParent

Parents joints and updates the matching nodes in the graph.

guide::SetGuideProperties

Sets the properties metadata on the guide joints.

guide::UpdatePatternFromGuides

Creates string patterns from skeleton joint names or a string array.

guide::UpdateShapesFromGuides

Sets shape data on TransformObjects.

quaternion::Distance

Finds the distance between two quaternions.

quaternion::Exponential

Computes the exponential of a quaternion.

quaternion::FromAxisAngle

Creates a unit quaternion from an angle and an axis.

quaternion::FromEuler

Creates a unit quaternion from a set of Euler angles.

quaternion::FromMatrix

Converts a rotation matrix into a unit quaternion.

quaternion::Invert

Inverts a quaternion.

quaternion::Logarithm

Computes the natural logarithm of a quaternion.

quaternion::Multiply

Multiplies two quaternions.

quaternion::Power

Raises the quaternion to the power of the exponent.

quaternion::Rotate

Rotates a vector by a quaternion.

quaternion::SwingTwistDecompose

Decomposes a quaternion into a swing and a twist along an axis.

quaternion::SwingTwistInterpolate

Interpolates between two quaternions while interpolating the swing and twist components separately.

quaternion::ToAxisAngle

Converts a quaternion to an axis vector and an angle.

quaternion::ToEuler

Creates a set of Euler angles from a quaternion.

quaternion::ToMatrix

Converts a quaternion to a rotation or transformation matrix.

ragdoll::Solve

Applies a ragdoll simulation to one or more characters.

rig::AbstractControl

Defines an abstract control in a rig.

rig::AddControlShape

Dynamically adds a deforming shape to a control shape library.

rig::CombineParmTransform

Constructs a local matrix by combining a local rest matrix with a set of transformation parameters.

rig::ControlShape

Adds the option of modifying the shape of a control in an APEX rig.

rig::ControlSpline

Builds a spline from a list of CVs.

rig::ControlSplineFromArray

Builds a spline from an array of CVs.

rig::CurveConstraint

Outputs a transform matrix derived from a location on a curve primitive.

rig::ExtractLocalTransform

Extracts a local transform given a child and parent transform, taking scale inheritance rules into account.

rig::ExtractParmTransform

Extracts the transformation parameters from a local matrix with respect to a local rest matrix.

rig::FkTransform

Represents a transformation in a transformation hierarchy.

rig::MultiBoneIK

Positions and orients joints from a root position, goal, and twist position using inverse kinematics.

rig::MultiBoneIKFromArray

Positions and orients joints from a root position, goal, and twist position using inverse kinematics, with inputs and outputs given as arrays.

rig::ParentBlend

Creates a parent constraint between two matrix transforms.

rig::PointConstraint

Computes a transform from a weighted mix of points on a geometry.

rig::PoseWeightInterpolation

Performs pose-weight interpolation.

rig::PrimConstraint

Computes a transform for a coordinate within a geometry primitive.

rig::RBFInterpolation

Performs radial basis function (RBF) interpolation.

rig::SampleSplineTransforms

Samples transforms from a spline.

rig::SampleSplineTransformsToArray

Samples transforms from a spline and outputs the samples in an array.

rig::SplineInterpolateTransforms

Generates and samples a spline.

rig::SplineInterpolateTransformsToArray

Generates and samples a spline, and outputs the samples in an array.

rig::SplineOffset

Converts a spline offset between its various representations.

rig::SplineOffsets

Converts multiple spline offsets between their various representations.

rig::SplineOffsetsToArray

Converts multiple spline offsets between their various representations.

rig::TwoBoneIK

Solves a two-joint IK chain.

rig::UVConstraint

Constrains a transform onto the surface of a geometry at the given UV texture coordinate.

sim::CreateObject

Adds a new dynamics object to a simulation.

sim::CreateRelationship

Adds a new dynamics relationship to a simulation.

sim::CreateSubData

Attaches data to a simulation object or relationship.

sim::EvaluateAtTime

Returns the geometry from a simulation at a specified time.

sim::FindObject

Finds the unique ID of a simulation object by name.

sim::FindRelationship

Finds the unique ID of a simulation relationship by name.

sim::GetGeometry

Returns the geometry from a simulation object or a relationship’s subdata.

sim::LoadSimFile

Loads a simulation state from a file.

sim::RemoveObject

Removes an object from a simulation.

sim::RemoveRelationship

Removes a relationship from a simulation.

sim::SetGeometry

Modifies the geometry subdata for a simulation object or relationship.

sim::SimEngine

Creates a new dynamics simulation.

skel::AddJoint

Creates a new KineFX point on a geometry.

skel::Blend

Blends two skeletons.

skel::DeleteJoint

Deletes a KineFX point from a geometry.

skel::DeleteJoints

Deletes a group of KineFX points from a geometry.

skel::EvaluateMotionClip

Evaluates a single pose from a MotionClip.

skel::EvaluateMotionClipArray

Evaluates a single pose from multiple MotionClips.

skel::FindFirstJoint

Finds the first point number in a geometry that matches a pattern.

skel::FindJoint

Finds a KineFX point by its name attribute.

skel::FindJoints

Finds an array of point indices in a geometry that matches a pattern.

skel::FindRoots

Finds all the KineFX points that do not have a parent.

skel::GetAncestors

Finds all the ancestors of a KineFX point.

skel::GetChildren

Finds all the children of a KineFX point.

skel::GetDescendants

Finds all the descendants of a KineFX point.

skel::GetParent

Finds the parent of a KineFX point.

skel::GetPointLocalTransform

Returns the local transform attribute value of a KineFX point.

skel::GetPointLocalTransforms

Returns the local transforms of multiple KineFX points.

skel::GetPointTransform

Returns the world transform of a KineFX point.

skel::GetPointTransforms

Returns the world transforms of multiple KineFX points.

skel::JointData

Returns various information on a KineFX joint, such as its name and world space transformation.

skel::SetParent

Sets a new parent for a KineFX point.

skel::SetParents

Sets new parents for multiple KineFX points.

skel::SetPointTransforms

Sets the world transforms of multiple KineFX points.

skel::SetPointTransformsFromAgent

Sets the world transforms of multiple KineFX points from an agent.

skel::SmoothMotion

Smooths out unwanted noise from a MotionClip and outputs a single skeleton with the smoothing applied.

skel::SmoothMotionArray

Smooths out unwanted noise from an array of skeletons and outputs a single skeleton with the smoothing applied.

skel::SmoothMotionClip

Smooths out unwanted noise from a MotionClip.

skel::Sort

Sorts the KineFX points in a geometry based on its hierarchy.

skel::Traverse

Traverses the whole KineFX hierarchy and writes out the result.

skel::UpdateJoint

Updates the attribute values of a KineFX point.

string::CamelCase

Converts a string to CamelCase style.

string::EndsWith

Determines if a string ends with a specific string.

string::Find

Finds the first occurrence of a substring.

string::ForceValidName

Ensures the string contains only valid characters.

string::Format

Creates a formatted string from input values.

string::FromInteger

Converts an integer to string.

string::FromRamp

Converts a ramp to a string.

string::Join

Returns a string that is the concatenation of the strings in an array.

string::Length

Computes the length of a string.

string::Lower

Converts a string to all lowercase.

string::Partition

Splits a string at the first or last instance of a partition substring.

string::PathSplit

Splits a path into a folder and file name.

string::PatternRename

Performs pattern replacement in a string.

string::RegexFind

Finds the first instance of a regular expression in a string.

string::RegexFindAll

Finds all instances of a regular expression in a string.

string::RegexMatch

Matches an input string against a regular expression.

string::RegexReplace

Replaces instances of a regular expression with a replacement string.

string::RegexSplit

Splits a string based on a regular expression.

string::Replace

Performs substring replacement in a string.

string::Reverse

Reverses a string.

string::Split

Splits a string into multiple tokens.

string::StartsWith

Determines if a string starts with a specific string.

string::SubString

Extracts a substring from a string.

string::ToFloat

Converts a string to a float.

string::ToInteger

Converts a string to an integer.

string::ToRamp

Converts a string to a ramp.

string::Upper

Converts a string to all uppercase.

transform::Blend

Blends between two matrices.

transform::Build

Builds a transformation matrix from transform components.

transform::ClampedLookAtPorthole

Limits the rotational range of a LookAt to a porthole on a sphere’s surface.

transform::ClampedLookAtWindow

Limits the rotational range of a LookAt to a window on a sphere’s surface.

transform::Determinant

Computes the determinant of a matrix.

transform::Dihedral

Computes a transformation representing the rotation between two vectors.

transform::Explode

Decomposes a matrix into its individual transformation components.

transform::LookAt

Rotates a matrix’s local look at axis toward a target.

transform::MirrorTransform

Mirrors a transformation matrix around a specified plane.

transform::MultiBlend

Blends multiple matrices or quaternions using a set of weights.

transform::MultiBlendFromArray

Blends an array of matrices or quaternions using an array of weights.

transform::PolarDecompose

Decomposes a matrix into rotation and stretch matrices using polar decomposition.

transform::Prerotate

Applies a prerotation to a matrix.

transform::Prescale

Applies a prescale to a matrix.

transform::Pretranslate

Applies a pretranslation to a matrix.

transform::ProjectOnSphere

Projects a point onto a sphere.

transform::ProjectOnSphericalPorthole

Projects a point onto a circular porthole on the surface of a sphere.

transform::ProjectOnSphericalWindow

Projects a point onto a rectangular window located on the surface of a sphere.

transform::Rotate

Applies a rotation to a matrix.

transform::RotateAboutAxis

Prerotates a matrix using an angle-axis rotation.

transform::Scale

Applies scaling to a matrix transformation.

transform::Slerp

Performs spherical linear interpolation.

transform::SmoothRotation

Finds the closest Euler angles to a reference rotation.

transform::Translate

Translates a matrix by a vector.

uievent::CurViewport

Fetches information about the viewport transform from the uievent.

uievent::Device

Fetches information about the pressed mouse button from the uievent.

uievent::Drag

Fetches information from the uievent about the position of the control at the start of a drag.

uievent::MousePosition

Fetches information about the state of the mouse from the uievent.

uievent::Ndc

Fetches information about the NDC transform and mouse position in NDC space.

uievent::PrimaryXform

Fetches information about the reference transforms on the primary control.

uievent::ScreenRay

Fetches information about the mouse ray from the uievent.

uievent::XformHandle

Fetches information about the transform handle interaction.

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Since	21.0

Logarithm

Inputs ¶

Outputs ¶

APEX nodes