setRange

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Set Range is a utility node that allows you to take values in one range, and map them into another range.

For example: Say you have an rotation attribute whose value goes from 0 to 360. You want to use this attribute to drive a color value, which goes from 0 to 1.

To do this:

Set the Old Min and Old Max attributes to the range the the incoming attribute has, in this case 0 to 360.

Set the Min and Max attributes to the desired range, in this case 0 to 1.

Connect your rotation attribute to the Value attribute.

Once that is done, the Out Value attribute of this node will provide you with numbers between 0 and 1, that you can use for your color.

The input of Set Range is a triple value, so you can use it for vectors, or colors. If you want to set the range for single values, just use one of the X, Y, or Z channels.

Here is the mathematical calculation done by this node:

OutValue = Min + (((Value-OldMin)/(OldMax-OldMin)) * (Max-Min))

In the table below, important attributes have their names listed in bold in the description column.

This node is MP safe

Related nodes

blendColors, clamp, lightInfo, gammaCorrect, surfaceLuminance, contrast, luminance, rgbToHsv, hsvToRgb, samplerInfo, resolution, renderQuality, renderGlobals, renderGlobalsList, baseShadingSwitch, singleShadingSwitch, doubleShadingSwitch, tripleShadingSwitch

Attributes (24)

max, maxX, maxY, maxZ, min, minX, minY, minZ, oldMax, oldMaxX, oldMaxY, oldMaxZ, oldMin, oldMinX, oldMinY, oldMinZ, outValue, outValueX, outValueY, outValueZ, value, valueX, valueY, valueZ

Long name (short name)	Type	Default	Flags
value (v)	float3	0.0, 0.0, 0.0
Value. This value will be mapped from the old range (Old Min to Old Max) into the new range (Min to Max).
valueX (vx) float 0.0 Input Value X component
valueY (vy) float 0.0 Input Value Y component
valueZ (vz) float 0.0 Input Value Z component
min (n)	float3	0.0, 0.0, 0.0
Min is the minimum value in the new range.
minX (nx) float 0.0 Min value X component
minY (ny) float 0.0 Min value Y component
minZ (nz) float 0.0 Min value Z component
max (m)	float3	0.0, 0.0, 0.0
Max is the maximum value in the new range.
maxX (mx) float 0.0 Max value X component
maxY (my) float 0.0 Max value Y component
maxZ (mz) float 0.0 Max value Z component
oldMin (on)	float3	0.0, 0.0, 0.0
Old Min is the minimum value in old range.
oldMinX (onx) float 0.0 Old Min X component
oldMinY (ony) float 0.0 Old Min Y component
oldMinZ (onz) float 0.0 Old Min Z component
oldMax (om)	float3	0.0, 0.0, 0.0
Old Max is the maximum value in old range.
oldMaxX (omx) float 0.0 Old Max X component
oldMaxY (omy) float 0.0 Old Max Y component
oldMaxZ (omz) float 0.0 Old Max Z component
outValue (o)	float3	0.0, 0.0, 0.0
Out Value. This is the new calculated value.
outValueX (ox) float 0.0 Output Value X component
outValueY (oy) float 0.0 Output Value Y component
outValueZ (oz) float 0.0 Output Value Z component