vJSONColorMap

Turns a number per point into a color between Color A and Color B.

IntermediateMograph / JSONJSONArrayScriptVal

vJSONColorMap reads a value for each index from the index, a scalar array, a point coordinate or the distance to a center, and outputs a list of RGBA colors. The color runs from Color A at the low end of the range to Color B at the high end.

Parameters

Parameter	Type	Default	Description
Source	Dropdown	Index	Index (default), Scalar Input, Position X, Position Y, Position Z or Distance From Center. The position and distance sources give 0 when no Points are connected.
Auto Range	Integer	1.0	Uses the smallest and largest value as the range when on (default).
RangeMin	Float	0	Low end of the manual range. Used when Auto Range is off. Default 0.
RangeMax	Float	1	High end of the manual range. Used when Auto Range is off. Default 1.
Clamp 0-1	Integer	1.0	Limits the position along the gradient to 0 to 1 when on (default).

+15 more parameters

Parameter	Type	Default	Description
Invert	Integer	0.0	Reverses the gradient when on. Default off.
Fallback Count	Integer	100	Number of colors when neither Points nor Scalars are connected. Minimum 1, default 100.
Center X	Float	0	X of the center for Distance From Center. Default 0.
Center Y	Float	0	Y of the center for Distance From Center. Default 0.
Center Z	Float	0	Z of the center for Distance From Center. Default 0.
Red	Float	0.1	Red of Color A, at the low end. Default 0.1.
Green	Float	0.4	Green of Color A. Default 0.4.
Blue	Float	1.0	Blue of Color A. Default 1.
Alpha	Float	1.0	Alpha of Color A. Default 1.
Red	Float	1.0	Red of Color B, at the high end. Default 1.
Green	Float	0.2	Green of Color B. Default 0.2.
Blue	Float	0.2	Blue of Color B. Default 0.2.
Alpha	Float	1.0	Alpha of Color B. Default 1.
Points	Text	—	Optional points. They set the count and feed the position and distance sources.
Scalars	Text	—	Optional numbers. They feed the Scalar Input source.

Read the full description

The number of colors is the number of Points, else the number of Scalars, else Fallback Count (default 100). Source picks the value per index: the index, the Scalar Input value (the first value of a list), Position X, Y or Z of the point, or its distance to Center X, Y and Z.

With Auto Range on, the smallest and largest value become the range, otherwise Range Min and Range Max do. The position t is (value - min) / (max - min), clamped to 0 to 1 if Clamp 0-1 is on, then flipped to 1 - t if Invert is on. The color is Color A + (Color B - Color A) * t per channel, limited to 0 to 1.

A range of zero width gives t = value - min. The output is a ScriptVal list, for example for the Custom Color input of vJSONShapeRender.

Example Connections

Color a grid by index and draw

vJSONPointsOnGrid.Output -> vJSONColorMap.Points
vJSONPointsOnGrid.Output -> vJSONCameraProjection.ArrayA
vJSONCameraProjection.Output -> vJSONShapeRender.ArrayPoint
vJSONColorMap.Output -> vJSONShapeRender.JSONCustomColor
Background.Output -> vJSONShapeRender.Input

Color by a scalar array

vJSONWeightMap.Output -> vJSONColorMap.Scalars
vJSONColorMap.Output -> vJSONShapeRender.JSONCustomColor

Related Nodes

vJSONRampMapvJSONWeightMapvJSONShapeRender