Modulo Scalar - Revision history

Redmaw: Updated descriptions and added example images.

2022-02-16T23:55:07Z

Updated descriptions and added example images.

JavaJones at 18:31, 1 June 2011

2011-06-01T18:31:26Z

JavaJones at 01:14, 18 May 2011

2011-05-18T01:14:56Z

JavaJones at 20:31, 28 April 2011

2011-04-28T20:31:23Z

127.0.0.1: jrfconvert import

2010-07-11T02:54:52Z

jrfconvert import

New page

[[Category:IMPORT]]
='''Modulo Scalar'''=

[[Image:drex_module_80_image_0.png|485pxpx|Modulo Scalar]]
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-'''Node Description & Purpose: '''<br /> The Modulo scalar node is a function which does modulo division, also known as remainder division. The calculation it does is very simple and looks like this :<br /><br /> Input '''modulo''' Input 2<br /><br /> The output is the remainder of Input divided by Input 2. For example :<br /><br /> 5 '''modulo''' 4 = 1<br /><br /> because the remainder of 5 divided by 4 is 1. As another example :<br /><br /> 5 '''modulo''' 5 = 0<br /><br /> because 5 divided by 5 has no remainder. Similarly :<br /><br /> 6 '''modulo''' 3 = 0<br /><br /> because 6 divided by 3 has no remainder.<br /><br /> One of the situations that modulo division is most useful in is for making repeating patterns. Imagine that you wanted to divide the X axis into blocks 5 units long. You would set up a Modulo scalar node so that the Input was the X position and Input 2 was a Constant scalar node with a value of 5. This will output values which look like this :<br /><br /><tt>X value: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20</tt><br /><tt>Output : 0 1 2 3 4 0 1 2 3 4 0 1 2 3 4 0 1 2 3 4 0</tt><br /><br /> As you can see you now get a repeating series of numbers from the output. Note that for this to work you need to make the Input value the varying number (in this case the X axis position) and the Input 2 value the constant value you are comparing with (5 in this case). If you did it the other way around you would get a output like this :<br /><br /><tt>X value: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20</tt><br /><tt>Output : 0 0 1 2 1 0 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5</tt><br /><br /> As you can see this does not give the same repeating sequence of numbers.<br /><br /> Let's go back to the original example. Imagine you wanted to make every place you get a zero from output as a white dot, and every place you got a number greater than zero as a black dot. You could make a pattern like this (where "o" is a white dot and "m" is a black dot) :<br /><br /><tt>X value: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20</tt><br /><tt>Output : 0 1 2 3 4 0 1 2 3 4 0 1 2 3 4 0 1 2 3 4 0</tt><br /><tt>Pattern: o m m m m o m m m m o m m m m o m m m m o</tt><br /><br /> That is a pretty simplistic example, but hopefully you see what is meant. Using modulo division is the basis for creating repeating patterns.<br /><br />'''Node Type: '''Function<br /><br />'''Settings: '''<br />
+[[File:ModuloScalar_00_GUI.png|none|470px|Modulo Scalar]]
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+== Overview ==
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 * '''Input 2: '''The value corresponding to Input 2 in the description above.
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