f3d-app
3mf file rendering fails
Describe the bug the shapes displayed have some some transparency out of nowhere.
To Reproduce
- I generate 3mf file from openscad
- Open the file test_3mf.3mf with de GUI
or generate an image with de command line
f3d --resolution 512,512 --no-config --output test_3mf.png test_3mf.3mf
Expected behavior 2 shapes must be displayed : a blue star and a red cylinder. both shapes must be colored uniformly (no transparency)
System Information:
- OS: ubuntu 22.04
- GPU intel. nodriver
- GPU and GPU driver:
- OS: ubuntu 24.10
- GPU nvidia GPU driver: default nvidia driver for ubuntu
F3D Information F3D 3.0.0
F3D - A fast and minimalist 3D viewer Version: 3.0.0-147-gc236c82b. Build date: 2025-03-25 01:12:36. Build system: Linux 64-bits. Compiler: GNU 9.4.0. Module ImGui: ON. Module OpenEXR: ON. Module Raytracing: ON. VTK version: 9.4.1-1791-g33d0f0a696 (date: 20250324). Copyright (C) 2019-2021 Kitware SAS. Copyright (C) 2021-2025 Michael Migliore, Mathieu Westphal. License BSD-3-Clause.
Additional context the script i use to generate the 3mf file
#!/bin/bash
echo '
$fn=20;
color("blue") {
union() {
cube(20, center=true);
rotate([0,0,45]) {
cube(20, center=true);
}
}
}
color("red") {
translate([30,0,0]) {
cylinder(h=25, d=20, center=true);
}
}
' > test_3mf.scad
# generate test_3mf_expected.png
openscad -O 'export-3mf/color-mode=model' -O 'export-3mf/material-type=color' --enable lazy-union --backend Manifold -o test_3mf_expected.png test_3mf.scad
# generate test_3mf.3mf
openscad -O 'export-3mf/color-mode=model' -O 'export-3mf/material-type=color' --enable lazy-union --backend Manifold -o test_3mf.3mf test_3mf.scad
f3d --resolution 512,512 --no-config --output test_3mf.png test_3mf.3mf
Hi @yannickbattail
Can you share the .3mf file ? I do not have openscad on hand.
@snoyer may have some inputs.
I could not attach a .3mf file to the issue. i found a site for sharing https://limewire.com/d/ZucWH#bj1e7XwbDo