marabou <not### [at] availablenet> wrote:
> on a surface i want to put many bump_maps on one surface. i tried it
> with two normal sections, but second one overwrite first one.
> how can it be done nevertheless?

  Use the 'average' "pattern" for normals. See the documentation for details.

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -

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