|
 |
OK, it has been a long time since I have used POV for anything but have I
forgotten a rule about using sphere_sweeps with CSG operations?
Below code has exactly the same sphere_sweep but when viewed at the lower angle
I see artifacts:
#version 3.7;
camera {
location <0, 0.0,-5.0>
look_at <0, 0, 0>
right x*image_width/image_height
}
// create a regular point light source
light_source {
0*x // light's position (translated below)
color rgb <1,1,1> // light's color
translate <-20, 40, -20>
}
// Set a color of the background (sky)
background { color rgb< 1, 1, 1> }
difference {
box { <-2, -5, -0.1> <2, 5, 0.1> }
union {
sphere_sweep {
b_spline
5,
< 2.2, -1.75, 0>, 0.45,
< 0, 0, 0>, 0.45,
<-0.50, 1.25, 0>, 0.35,
<0.65, 2.5, 0>, 0.025,
< 0.45, 5.0, 0>, -0.35
tolerance 0.1
scale <0.5, .5, 2> rotate<0,0,0>
} // end of sphere_sweep --
sphere_sweep {
b_spline
5,
< 2.2, -1.75, 0>, 0.45,
< 0, 0, 0>, 0.45,
<-0.50, 1.25, 0>, 0.35,
<0.65, 2.5, 0>, 0.025,
< 0.45, 5.0, 0>, -0.35
tolerance 0.1
scale <0.5, .5, 2> rotate<0,0,0> translate<-0.55,-2.1,0>
} // end of sphere_sweep --
}
material {
texture {
pigment { rgb <0.01, 0.51, 0.51> }
finish { specular albedo .1 roughness 0.001 brilliance 2 diffuse albedo 0.9
reflection { 0.05, .1 fresnel on } conserve_energy }
}
interior { ior 1.6 }
}
}
Post a reply to this message
Attachments:
Download 'tmp.png' (20 KB)
Preview of image 'tmp.png'
|
|
org> wrote: