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I am rendering a world environment simulation in Mathematica with Graphics3D code:

Show[{
Graphics3D[{
Lighting -> "Neutral",
Green, 
Polygon[{{-10, -10, 0}, {-10, 10, 0}, {10, 10, 0}, {10, -10, 
   0}}],
Red, Cone[{{0, 0, 0}, {0, 0, .1}}, 1/2],
White, 
Table[Sphere[
   Table[{0, 0, 10} + {rx, ry, rz} + {r, r, r/3} /. 
     r :> RandomReal[]*4, {5}], 
   2] /. {rx -> RandomReal[{-20, 20}], 
   ry -> RandomReal[{-20, 20}], rz -> RandomReal[{-1, 3}]}, {30}]
}, Boxed -> False, Background -> Blue, 
ImageSize -> {900, 900*41/54}, SphericalRegion -> True],
ContourPlot3D[
x^2 + y^2 == 10^2, {x, -10, 10}, {y, -10, 10}, {z, 0, .6}, 
Mesh -> None, Lighting -> "Neutral", 
ContourStyle -> Darker[Green]]
}]

If the camera is positioned far away from the scene so that everything is in view range, it renders fine:

somewhat cloudy

However, when I specify the desired camera parameters:

ViewVector -> {{0, 0, .1}, {0, 1, .1}}, ViewAngle -> 54 \[Degree]

The rendering becomes weird:

weird rendering

The bottom part of the green rectangle is cut off and the blue background is displayed instead, and the red cone is very weird as well. Is there a way to display this scene properly?

edit: Solved with

ViewRange -> {0.1, 100}

This is not optimal, because it does not take 0 or Automatic for a minimum value, All causes the cut-off in the above example, and it does not take Infinity or Automatic for a maximum value.

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5
  • $\begingroup$ Could be the objects are overlapping and rendering poorly. What happens if you move the cone slightly higher off the 'ground'? $\endgroup$
    – cormullion
    Jun 7, 2013 at 13:36
  • $\begingroup$ The cone is then rendered correctly, but the scene is still cut off at the bottom: i.imgur.com/qmtF9Of.png $\endgroup$
    – shrx
    Jun 7, 2013 at 13:38
  • 1
    $\begingroup$ ContourPlot3D[x^2 + y^2 == 10^2, {x, -10, 10}, {y, -10, 10}, {z, 0, .6}, Mesh -> None, Lighting -> "Neutral", ContourStyle -> Darker[Green]] - are you aware that there's a Cylinder[] primitive? $\endgroup$
    – J. M.'s persistent exhaustion ♦
    Jun 7, 2013 at 13:39
  • 1
    $\begingroup$ Yes, but it has bottom and top faces, which I don't want displayed in this case. $\endgroup$
    – shrx
    Jun 7, 2013 at 13:41
  • $\begingroup$ In that case, you use Tube[] with a suitable setting for CapForm[]. $\endgroup$
    – J. M.'s persistent exhaustion ♦
    Jun 7, 2013 at 13:44

1 Answer 1

Reset to default
1
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Solved with

ViewRange -> {0.1, 100}

This is not optimal, because it does not take 0 or Automatic for a minimum value, All causes the cut-off in the above example, and it does not take Infinity or Automatic for a maximum value.

Improve this answer
$\endgroup$

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