Question about ColorFunction

*To*: mathgroup at smc.vnet.net*Subject*: [mg126600] Question about ColorFunction*From*: Jee Lou <ywdr1987 at gmail.com>*Date*: Wed, 23 May 2012 03:29:11 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com

Anyone explain to me how ColorFunction works? Why Plot3D[Sin[x + y], {x, 0, 3}, {y, 0, 3}, ColorFunction -> (Hue[Sin[#1 + #2]] &)] and Plot3D[Sin[x + y], {x, 0, 3}, {y, 0, 3}, ColorFunction -> (Hue[#3] &)] return different color distributions?

**Follow-Ups**:**Re: Question about ColorFunction***From:*Bob Hanlon <hanlonr357@gmail.com>

**Re: Question about ColorFunction***From:*Bob Hanlon <hanlonr357@gmail.com>

**Re: Question about ColorFunction***From:*Sseziwa Mukasa <mukasa@gmail.com>