as i wanted to create a wall i recognized that i have done this
before. so i took the code i made yet and put it in my new test
scene.
i was surprised that the result now looks much different then before.
new one casts shadows like in old scenes. but now it looks more
blurred and washed. my aim was to create robust stones with tight
edges.

pics attached: dark pic is new one, more lighten pic is old one (aim).

may anybody help or give hints?

thanks in advance.

algorithm used for one stone was:
//----------------------------->>>stone
superellipsoid {
        <0.1,0.1>
        scale <scale_x-0.001,stein_ho/2-0.001,stein_ti/2>
        pigment {
                #local schiebung = rand(zahl)*0.03;
                color <0.82+schiebung,0.81+schiebung,0.79+schiebung>
        }
        normal{
                granite 
                warp{turbulence rand(zahl)/4} 
                rotate rand(zahl)*100
        }
//-----------------------------<<<stone

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