Animate

Animate Frames

Animate the atoms of a structure, based on the frames of a trajectory from the Frames collection in the input. The structure animates through the trajectory from the given start frame to the given end frame, as the Animate 0..1 value moves from 0 to 1. Values higher than 1 start at the beginning again and the trajectory will loop repeating every 1.00. Position and b_factor are interpolated if available. By default linear interpolation is used. Smoothing in and out of each frame can be applied with the Smoother Step, or no interpolation at all.

Inputs

Name	Type	Description	Default
Atoms	Geometry	Atomic geometry that contains vertices and edges	required
Selection	Bool	Selection of atoms to apply this node to	True
Frames	Collection	Collection which holds the frames of the trajectory	required
Smoother Step	Bool	Ease in and out of the individual frames if interpolating	False
Interpolate	Bool	Whether to interpolate between frames of a trajectory or snap	True
Frame	Float	Which frame to select from the collection. The fraction component of the float is how much to interpolate between the current and next frame	0.0

Outputs

Name	Type	Description	Default
Atoms	Geometry	Atomic geometry with new positions based on the trajectory	required

Animate Value

Animate a float value between the specified min and max values, over specified range of frames. If clamped, frames above and below the start and end will result in the min and max output values, otherwise it will continue to linearly interpolate the value beyond the min and max values.

Inputs

Name	Type	Description	Default
Smoother Step	Bool	Ease out and in from the min and max values	False
Clamped	Bool	Whether to clamp the interpolated value to the max	False
Frame Start	Int	Frame to start the animation on	1
Frame End	Int	Frame to finish the animation on	250
Value Min	Float	Value to start animation from	0.0
Value Max	Float	Value to end animation at	1.0

Outputs

Name	Type	Description	Default
Value	Float	Animated value that interpolates from min to max over frames	0.0

Animate Trails

Add trails to the atoms as they are animated, which trail the specified number of frames behind the atoms

Inputs

Name	Type	Description	Default
Atoms	Geometry	Atoms to add trails to	required
Selection	Bool	Selection of atoms to apply this node to	True
Trail Frames	Int	Number of previous frames from the trajectory to display	5
Trail Radius	Float		1.0
Trail Cutoff (A)	Float		10.0
Trail Subdivisions	Int		6
Trail Resolution	Int	Tail radial resolution	6
Shade Smooth	Bool		True
Material	Material		MN Default

Outputs

Name	Type	Description	Default
Geometry	Geometry		required

Centre on Selection

Move the input points to be centred on their calculated cnetroid point, which is based on the selection. The optional Group ID value applies this transformation on a per-group basis

Inputs

Name	Type	Description	Default
Atoms	Geometry		required
Selection	Bool	Selection within the groups to calculate the centroid for, which then affects all other points in the group	True
Group ID	Int	An optional Group ID value to calculate the centroid and offset points on a per-group basis	0

Outputs

Name	Type	Description	Default
Atoms	Geometry	Atoms that have been moved to object origin based on their group’s calculated centroid	required
Offset	Vector	The calculated vector offset applied to centre the points	[0.0, 0.0, 0.0]

Res Wiggle

Create a procedural animation of side-chain movement. ‘Wiggles’ the side-chains of peptide amino acids based on the b_factor attribute. Wiggle is currently only supported for protein side-chains and does not check for steric clashing so higher amplitudes will result in strange results. The animation should seamlessly loop every 1.00 of the Animate 0..1 input.

Inputs

Name	Type	Description	Default
Atoms	Geometry	Atomic geometry that contains vertices and edges	required
Selection	Bool	Selection of atoms to apply this node to	True
b_factor	Float	Amount that b_factor changeds the amplitude of wiggling	1.0
Amplitude	Float	Overall amplitude of the wiggling	1.0
Amp. Axis	Float	Aplitude for the rotation around the bond axes	1.0
Amp. Euler	Float	Amplitude for applying euler rotations separate to the axis	0.4
Speed	Float	Speed at which the wiggle is applied, 3 will repeat 3 times	3.0
Animate	Float	Controls the animation of the wiggle, repeating every 1.00	0.0

Outputs

Name	Type	Description	Default
Atoms	Geometry	The animated atomic geometry	required

Peptide to Curve

Take the protein residues from a structure and align then along an input curve. Editing the curve will change how the atoms are arranged. The output atoms can be styled as normal.

Inputs

Name	Type	Description	Default
Atoms	Geometry	Atomic geometry that contains vertices and edges	required
Curve	Geometry		required
Offset	Float		0.0
Start	Float		0.0
End	Float		1.0
Rotate	Float		0.5
Twist	Float		1.0

Outputs

Name	Type	Description	Default
Atoms	Geometry		required

Noise Position

Create 3D noise vector based on the position of points in 3D space. Evolve the noise function with the Animate input, and change the characteristics of the noise function with the other inputs such as scale and detail. There is also a 1-dimensional noise output called Fac.

An example of using this noise is to offset the positions of atoms with the Set Position node.

Inputs

Name	Type	Description	Default
Amplitude	Float		0.25
Animate	Float		0.0
Scale	Float		1.0
Detail	Float		3.0
Roughness	Float		1.0
Distortion	Float		0.0

Outputs

Name	Type	Description	Default
Vector	Vector		[0.0, 0.0, 0.0]
Fac	Float		0.0

Noise Field

Create a 3D noise vector based on the input field. Evolve the noise function with the Animate input, and change the characteristics of the noise function with the other inputs such as scale and detail. There is also a 1-dimensional noise output called Fac.

An example of using this noise is to offset the positions of atoms with the Set Position node. Different field inputs result in different noise being applied. Using the chain_id results in the same noise being generated for each atom in each chain, but different between chains.

Inputs

Name	Type	Description	Default
Field	Vector		[0.0, 0.0, 0.0]
Amplitude	Float		0.25
Animate	Float		0.0
Scale	Float		1.0
Detail	Float		3.0
Roughness	Float		1.0
Distortion	Float		0.0

Outputs

Name	Type	Description	Default
Noise	Vector		[0.0, 0.0, 0.0]
Fac	Float		0.0

Noise Repeat

Create a 3D noise vector based on the input field, that repeats every 1.00 for the Animate 0..1 input. Evolve the noise function with the Animate input, and change the characteristics of the noise function with the other inputs such as scale and detail. There is also a 1-dimensional noise output called Fac.

An example of using this noise is to offset the positions of atoms with the Set Position node. Different field inputs result in different noise being applied. Using the chain_id results in the same noise being generated for each atom in each chain, but different between chains.

Inputs

Name	Type	Description	Default
Amplitude	Float		1.0
Detail	Float		0.5
Roughness	Float		0.5
Distortion	Float		0.0
Vector	Vector		[0.0, 0.0, 0.0]
Speed	Float		0.5
Animate 0..1	Float		0.5

Outputs

Name	Type	Description	Default
Noise Float	Float		0.0
Noise Vector	Vector		[0.0, 0.0, 0.0]