I don't know whether these are bugs or not but...

1) This code won't work:

#include "functions.inc"
#declare dim = <30,15,20>
isosurface {
    function {f_rounded_box (x,y,z,1,dim.x,dim.y,dim.z)}
    accuracy 10^-2
    max_gradient 2
    contained_by {box {-dim, dim}}
    pigment {rgb 1}
}
camera {location <0,100,-300> look_at 0}
light_source {<500,500,-500> rgb 1.5}

The workaround is to write as follows:

#local dimx=dim.x;
#local dimy=dim.y;
#local dimz=dim.z;

[...] function {f_rounded_box (x,y,z,1,dimx,dimy,dimz)}

2) This code won't work too:

#include "functions.inc"
#declare dim = <30,15,20>
#local dimx=dim.x;
#local dimy=dim.y;
#local dimz=dim.z;
#declare RS=seed(0);

isosurface {
    function {f_rounded_box (x,y,z,1+rand(RS),dimx,dimy,dimz)}
    accuracy 10^-2
    max_gradient 2
    contained_by {box {-dim, dim}}
    pigment {rgb 1}
}
camera {location <0,100,-300> look_at 0}
light_source {<500,500,-500> rgb 1.5}

the workaround is the same:
#include "functions.inc"

#declare RS=seed(0);
#local rand_rad=rand(RS);

[...] function {f_rounded_box (x,y,z,1+rand_rad,dimx,dimy,dimz)}

Ok, what am I missing?


--
Jonathan.

Home: http://digilander.iol.it/jrgpov

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