Fixed a missing sqrtf in beckman's sample function
Fixed a missing sqrtf in beckman's sample function

git-svn-id: 93cebb81a0f5cc00f31a7ad40d16024532691b70@554 a3683778-fedd-11de-87c3-653bb6514e15

gzorin/OpenShadingLanguage,lgritz/OpenShadingLanguage,juvenal/OpenShadingLanguage,Anteru/OpenShadingLanguage,sjparker/OpenShadingLanguage,mcanthony/OpenShadingLanguage,gzorin/OpenShadingLanguage,Anteru/OpenShadingLanguage,brechtvl/OpenShadingLanguage,aconty/OpenShadingLanguage,lgritz/OpenShadingLanguage,amartinez-cg/OpenShadingLanguage,johnhaddon/OpenShadingLanguage,sjparker/OpenShadingLanguage,brechtvl/OpenShadingLanguage,aconty/OpenShadingLanguage,juvenal/OpenShadingLanguage,fpsunflower/OpenShadingLanguage,mcanthony/OpenShadingLanguage,Anteru/OpenShadingLanguage,gzorin/OpenShadingLanguage,aconty/OpenShadingLanguage,lgritz/OpenShadingLanguage,gzorin/OpenShadingLanguage,lgritz/OpenShadingLanguage,johnhaddon/OpenShadingLanguage,aconty/OpenShadingLanguage,gzorin/OpenShadingLanguage,yaroslav-tarasov/OpenShadingLanguage,amartinez-cg/OpenShadingLanguage,juvenal/OpenShadingLanguage,svenstaro/OpenShadingLanguage,Anteru/OpenShadingLanguage,rlmh/OpenShadingLanguage,yaroslav-tarasov/OpenShadingLanguage,mcanthony/OpenShadingLanguage,fpsunflower/OpenShadingLanguage,sjparker/OpenShadingLanguage,fpsunflower/OpenShadingLanguage,brechtvl/OpenShadingLanguage,rlmh/OpenShadingLanguage,sjparker/OpenShadingLanguage,imageworks/OpenShadingLanguage,johnhaddon/OpenShadingLanguage,johnhaddon/OpenShadingLanguage,lgritz/OpenShadingLanguage,yaroslav-tarasov/OpenShadingLanguage,imageworks/OpenShadingLanguage,svenstaro/OpenShadingLanguage,mcanthony/OpenShadingLanguage,amartinez-cg/OpenShadingLanguage,imageworks/OpenShadingLanguage,rlmh/OpenShadingLanguage,amartinez-cg/OpenShadingLanguage,rlmh/OpenShadingLanguage,brechtvl/OpenShadingLanguage,amartinez-cg/OpenShadingLanguage,svenstaro/OpenShadingLanguage,imageworks/OpenShadingLanguage,yaroslav-tarasov/OpenShadingLanguage,brechtvl/OpenShadingLanguage,aconty/OpenShadingLanguage,imageworks/OpenShadingLanguage,svenstaro/OpenShadingLanguage,juvenal/OpenShadingLanguage,fpsunflower/OpenShadingLanguage