MATHS NODE: MIN

The Min (or Minimum) maths function compares Value_1 and Value_2 and returns the lowest value. For it to be of use, one or both of the value inputs should have another node plugged in, as seen in figure 1. This shows the result of plugging a node into each both Value_1 and Value_2. Only those areas that are bright in both inputs remain bright in the final output. This could be seen as a logical 'AND' gate - only when both one and two are high is the output high.

Fig 1: Min maths node

The min function can also be used with a single input node, using the second Value to control the result. The result of this is to filter out the brighter elements of the input node. The lower the second value is, the more elements will be filtered out. Figure Two shows the result of doing this with a Turbulence node plugged intoValue_1 and Value_2 set to 0.5. The result of this is to filter out the brighter parts of the Turbulence, leaving flat plateaus on the final output. This can be used to produce interesting displacement effects.

Fig 2: Min used to filter bright elements

Suggested Uses:

Try using a brick node as value_1 (white bricks and black mortar) with any of Turbulance, fBm or fractal_sum as value_2, to put mortar lines through the second node.

Try using a U or V node as value_2 to fade out any other node.