/*
Language: RenderMan RSL
Author: Konstantin Evdokimenko <qewerty@gmail.com>
Contributors: Shuen-Huei Guan <drake.guan@gmail.com>
Category: graphics
*/

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        'abs acos ambient area asin atan atmosphere attribute calculatenormal ceil cellnoise ' +
        'clamp comp concat cos degrees depth Deriv diffuse distance Du Dv environment exp ' +
        'faceforward filterstep floor format fresnel incident length lightsource log match ' +
        'max min mod noise normalize ntransform opposite option phong pnoise pow printf ' +
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        'setzcomp shadow sign sin smoothstep specular specularbrdf spline sqrt step tan ' +
        'texture textureinfo trace transform vtransform xcomp ycomp zcomp'
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