3DC files not deleted

[David Pearce]

A minor bug I see on two Windows 10 PCs running 5.1.x versions.
I am seeing a large number of files with a .3DC extension in
C:\Users\David\AppData\Local\kicad\3d\
The 3d directory is the only KiCad entry in Local

The files have names like 2d514096b01b51ccf911367c7261a90815f71621.3dc

I presume that these are something to do with the 3D view being created and not deleted after closing.

A similar directory, close to the rest of the KiCad setup is empty
C:\Users\David\AppData\Roaming\3d

Application: KiCad
Version: (5.1.4)-1, release build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.61.1 OpenSSL/1.1.1 (WinSSL) zlib/1.2.11 brotli/1.0.6 libidn2/2.0.5 libpsl/0.20.2 (+libidn2/2.0.5) nghttp2/1.34.0
Platform: Windows 8 (build 9200), 64-bit edition, 64 bit, Little endian, wxMSW
Build Info:
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8)
    Boost: 1.68.0
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.61.1
    Compiler: GCC 8.2.0 with C++ ABI 1013

Build settings:
    USE_WX_GRAPHICS_CONTEXT=OFF
    USE_WX_OVERLAY=OFF
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_PYTHON3=OFF
    KICAD_SCRIPTING_WXPYTHON=ON
    KICAD_SCRIPTING_WXPYTHON_PHOENIX=OFF
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_USE_OCC=OFF
    KICAD_SPICE=ON

[Nick Østergaard (nickoe)]

It is not really a bug as such. They are cache data for the 3d viewer.

But they are not deleted by kicad. It is safe to delete the manually.

[Seth Hillbrand (sethh)]

I think we should move cache files into the system temporary directory. This is another one of the directory pollution issues.

[David Pearce (halzia)]

It is wrong to put temporary files into the AppData tree and I was wondering if this was a side effect of a more serious error.

[David Pearce (halzia)]

The Ubuntu Linux version puts the files in
/home/david/.cache/kicad/3d/cc1109f668b1831beb9c1620fa0a86528062c08c.3dc

A far more suitable location, but still deletion problems

[KiCad Janitor (kicad-janitor)]

KiCad bug tracker has moved to Gitlab. This report is now available here: https://gitlab.com/kicad/code/kicad/-/issues/1928