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<head>
<meta name='title' content=' AdditiveSubtractiveLight.x3d '/>
<meta name='description' content='This example tests various color combination capabilities, and also demonstrating that filtering (negative colors) are not supported in the X3D/VRML color model. Discussion follows. There are 2 ways to combine colors: Additive (e.g. a TV screen, overlapping spotlights, or pointillist art), for example [red + green = yellow] [1 0 0 + 0 1 0 = 1 1 0]. Subtractive (e.g. mixing paints or stacking filters), for example [white background + yellow filter + cyan filter = green] [1 1 1 + 0 0 -1 + -1 0 0 = 0 1 0].'/>
<meta name='creator' content='Miriam English'/>
<meta name='translator' content=' Xeena VRML importer, X3D-Edit 3.1, https://www.web3d.org/x3d/content/README.X3D-Edit.html '/>
<meta name='translator' content='Don Brutzman and MV4205 class'/>
<meta name='created' content='6 May 2003'/>
<meta name='translated' content='6 May 2003'/>
<meta name='modified' content='20 October 2019'/>
<meta name='reference' content=' additive-subtractiveLight2.7May2003.x3d '/>
<meta name='reference' content=' http://www.rgbworld.com/color.html '/>
<meta name='Image' content='AdditiveSubtractiveLight.png' />
<meta name='subject' content='additive subtractive light examples'/>
<meta name='identifier' content=' https://www.web3d.org/x3d/content/examples/Basic/development/AdditiveSubtractiveLight.x3d '/>
<meta name='generator' content='X3D-Edit 3.3, https://savage.nps.edu/X3D-Edit'/>
<meta name='generator' content=' Vrml97ToX3dNist, http://ovrt.nist.gov/v2_x3d.html '/>
<meta name='license' content=' ../license.html'/>
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