Instance Range
The Instance Range texture node functions in a similar way to the Instance Color texture node. The Instance Range texture generates a greyscale value with the Maximum ID range of 0 to the total number of instances, and OctaneRender® prepares this range to be mapped to geometric instance IDs. In figure 1, an Instance Range node is connected to a Gradient Map node that is then connected to a Glossy material.
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Instance Range
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Figure 1: The Instance Range node used to drive a gradient
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Gradient Map
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Figure 2: The Gradient Map parameters used in figure 1
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Nodegraph Layout
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Figure 3: The node layout from figure 1