Package: openscad
Version: 2021.01-6
Severity: important
Dear Maintainer,
When I open this SCAD source:
difference() {
cube([10, 10, 10], center = true);
cube([5, 5, 10], center = true);
}
the preview shows garbage in the "openings" created by the difference
operation. The display of the garbage changes as I rotate or zoom the
view.
To get rid of the garbage completely, I have to do a full render. That
is very time-consuming on a larger model, whereas the garbage effect makes
previewing almost useless, so I rated this severity "important".
The bug is independent of the objects being differenced.
It occurs when there is exact co-planarity of
a face of A and a face of B in
difference() { A; B; }
-- Package-specific info:
Output of /usr/share/bug/openscad:
$ glxinfo |grep 'OpenGL .* string:'
OpenGL vendor string: AMD
OpenGL renderer string: AMD Radeon RX 5700 XT (navi10, LLVM 15.0.7, DRM 3.52,
6.4.0-4-amd64)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 23.1.6-1
OpenGL core profile shading language version string: 4.60
OpenGL version string: 4.6 (Compatibility Profile) Mesa 23.1.6-1
OpenGL shading language version string: 4.60
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 23.1.6-1
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
-- System Information:
Debian Release: trixie/sid
APT prefers testing
APT policy: (500, 'testing'), (400, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.4.0-4-amd64 (SMP w/32 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages openscad depends on:
ii lib3mf1 1.8.1+ds-4
ii libboost-filesystem1.74.0 1.74.0+ds1-22
ii libboost-program-options1.74.0 1.74.0+ds1-22
ii libboost-regex1.74.0 [libboost-regex1.74.0-icu72] 1.74.0+ds1-22
ii libc6 2.37-7
ii libcairo2 1.17.8-3
ii libdouble-conversion3 3.3.0-1
ii libfontconfig1 2.14.2-5
ii libfreetype6 2.13.2+dfsg-1
ii libgcc-s1 13.2.0-2
ii libgl1 1.6.0-1
ii libglew2.2 2.2.0-4+b1
ii libglib2.0-0 2.78.0-1
ii libglu1-mesa [libglu1] 9.0.2-1.1
ii libgmp10 2:6.3.0+dfsg-2
ii libharfbuzz0b 8.0.1-1
ii libmpfr6 4.2.0-1
ii libopencsg1 1.5.0-1+b1
ii libqscintilla2-qt5-15 2.14.1+dfsg-1
ii libqt5core5a 5.15.10+dfsg-3
ii libqt5dbus5 5.15.10+dfsg-3
ii libqt5gamepad5 5.15.10-2
ii libqt5gui5 5.15.10+dfsg-3
ii libqt5multimedia5 5.15.10-2
ii libqt5network5 5.15.10+dfsg-3
ii libqt5widgets5 5.15.10+dfsg-3
ii libspnav0 1.1-1
ii libstdc++6 13.2.0-2
ii libx11-6 2:1.8.6-1
ii libxml2 2.9.14+dfsg-1.3
ii libzip4 1.7.3-1+b1
Versions of packages openscad recommends:
ii openscad-mcad 2019.05-1
Versions of packages openscad suggests:
pn geomview <none>
pn librecad <none>
pn meshlab <none>
pn openscad-testing <none>
-- no debconf information
