This could be of help...
#declare R1 = seed(12345);
#declare name_of_shape  = the shape without a texture here
#macro Place( name_of_shape)
    object{name_of_shape   texture{some_predefined_texture translate
<rand(R1),rand(R1),rand(R1)}}
#end

then you could use
Place {name_of_shape }

The texture will be translated by some randome amount each time that the
macro is called.

Let us know if that helped.

Mr. Art
Sander wrote:

> Hello,
> I would like to render many identical objects having non-identical textures.
> To explain: object is a union of several primitives, one of which has a
> marble texture.
> When I place 1000 of those objects on a plane, they all have an identical
> marble outlook.
> I would like to them to be different: still the same marble, but  a
> different pattern.
> Of course I could make 1000 different textures, but this doesn't seem to be
> the best solution. I tried to make a macro that produces a texture, but that
> obviously cannot be done. ... What to do?
> Thanks for any help.        Sander

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