Class: ColorDamper

X3D: 3.3
Component: Followers
Status:
experimental

x3dom.nodeTypes. ColorDamper

The ColorDamper animates color values. Whenever the it receives a color, the ColorDamper node creates a transition from the current color to the newly set color. The transition created approaches the newly set position asymptotically during a time period of approximately three to four times the value of the field tau depending on the desired accuracy and the value of order. The order field specifies the smoothness of the transition.

HTML Encoding and Default Values

<ColorDamper destination='0,0,0' initialDestination='0.8,0.8,0.8' initialValue='0.8,0.8,0.8' isActive='false' metadata='X3DMetadataObject' order='3' tau='0.3' tolerance='-1' value='0,0,0' ></ColorDamper>

Inheritance


Constructor

ColorDamper(ctx)

Constructor for ColorDamper

Parameters:
Name Type Argument Default Description
ctx Object <optional>
null context object, containing initial settings like namespace

Fields

These are the X3D / X3DOM fields of this node. Values should usually be received / set as strings via DOM functions (i.e., using setAttribute("myFieldName", "myFieldValue") and getAttribute("myFieldName")).
Name Type Default Value Range Inheritance Standard Description
destination SFColor 0,0,0 [0,1] The target color value
initialDestination SFColor 8 [0,1] The field initialDestination should be set to the same value than initialValue unless a transition to a certain color is to be created right after the scene is loaded or right after the ColorDamper node is created dynamically.
initialValue SFColor 8 [0,1] The field initialValue can be used to set the initial color.
isActive SFBool false X3DDamperNode isActive shows if the sensor is active
metadata SFNode X3DMetadataObject X3DDamperNode Field to add metadata information
order SFInt32 3 [0..5] X3DDamperNode The order field specifies the smoothness of the transition.
tau SFTime 3 [0,inf) X3DDamperNode The field tau specifies the time-constant of the internal filters and thus the speed that the output of an X3DDamperNode responds to the input. A value of zero for tau means immediate response and the events received on set_destination are forwarded directly. The field tau specifies how long it takes the output of an internal filter to reach the value of its input by 63% (1 - 1/e). The remainder after that period is reduced by 63% during another period of tau seconds provided that the input of the filter does not change. This behavior can be exposed if order is set to one.
tolerance SFFloat -1 -1 or [0,inf) X3DDamperNode If tolerance is set to its default value -1, the browser implementation is allowed to find a good way for detecting the end of a transition. Browsers that do not have an elaborate algorithm can just use .001 as the tolerance value instead. If a value larger than zero is specified for tolerance, the browser shall calculate the difference between output and input for each internal filter being used and stop the animation only when all filters fall below that limit or are equal to it. If zero is specified for tolerance, a transition should be stopped only if input and output match exactly for all internal filters.
value SFColor 0,0,0 [0,1] The current color value