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There is a bug in version 13.0.1.0 - head of an arrow pointing exactly along z-axis is deformed. Is it present also in newer versions?

A workaround is to add {10^-16, 0, 0} to the last point of the arrow so that its direction is not exactly along z-axis.

SystemInformation["Kernel"][[1 ;; 2]]
Graphics3D[{Arrowheads[0.1], 
  Arrow[Tube[{{0, 0, 0}, {1, 0, 0}}, 0.05]], 
  Arrow[Tube[{{0, 0, 0}, {0, 1, 0}}, 0.05]], 
  Arrow[Tube[{{0, 0, 0}, {0, 0, -1}}, 0.05]], 
  Arrow[Tube[{{0, 0, 0}, {1/4, 1/4, 1/4}, {1/4, 1/4, 1}}, 0.05]]}, 
 PlotRange -> 1]
Graphics3D[{Arrowheads[0.1], 
  Arrow[Tube[{{0, 0, 0}, {1, 0, 0}}, 0.05]], 
  Arrow[Tube[{{0, 0, 0}, {0, 1, 0}}, 0.05]], 
  Arrow[Tube[{{0, 0, 0}, {0, 0, -1} + {10^-16, 0, 0}}, 0.05]], 
  Arrow[Tube[{{0, 0, 0}, {1/4, 1/4, 
      1/4}, {1/4, 1/4, 1} + {10^-16, 0, 0}}, 0.05]]}, PlotRange -> 1]

(* {"Version" -> 
  "13.0.1 for Microsoft Windows (64-bit) (January 28, 2022)", 
 "ReleaseID" -> "13.0.1.0 (7620973, 2022012812415)"} *)

enter image description here

enter image description here

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    $\begingroup$ Work fine on "12.3.1 for Microsoft Windows (64-bit) (June 24, 2021)" and "13.1.0 for Microsoft Windows (64-bit) (June 16, 2022)" $\endgroup$
    – cvgmt
    Commented Dec 1, 2022 at 10:24

1 Answer 1

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Seems to work in 13.1.

Your code with the view points corresponding to your pictures:

enter image description here

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  • $\begingroup$ Can you please provide the whole version number? $\endgroup$ Commented Dec 1, 2022 at 10:09
  • $\begingroup$ "13.1.0 for Microsoft Windows (64-bit) (June 16, 2022)" $\endgroup$ Commented Dec 1, 2022 at 12:26

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