80 lines
No EOL
3.2 KiB
Markdown
80 lines
No EOL
3.2 KiB
Markdown
# Goal
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1) Create a single glb (binary glTF [Graphics Library Transmission Format])from an STL file. This is for testing or proof-of-concept.
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2) Create a directory tree of conversions. This would be for production.
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# Introduction
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This procedure will use Blender to create glbs from the STLS in the source tree.
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# Prerequisites
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Source area for the Voron GitHub repositories containing STLs
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ROOT directory to serve as a staging area for placing the glbs (and the HTML manifest and eventually pngs)
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Blender (v. 5.0+)
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# Procedure
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## Step 1
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Decide on a staging directory, example /home/jlpoole/work/Voron/test1, as this is where all the glb output and their directory paths will be placed.
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Example:
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mkdir /home/jlpoole/work/Voron/test1
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## Step 3
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cd to [THIS PROJECT]/ root directory.
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Example, I cloned this project while under my Voron directory, so the directory "voronstl" was created by ```git clone https://salemdata.net/repo/jlpoole/voronstl/src/branch/init_dev``` :
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cd /home/jlpoole/work/Voron/voronstl
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### Step 3A - single glb
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Execute:
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blender-bin-5.0.0 --background --python create_glb.py -- \
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[PATH TO A SINGLE STL FILE] \
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[OUTPUT PATH & FILE]
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Example:
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jlpoole@jp ~/work/Voron/voronstl $ date; time blender-bin-5.0.0 --background --python create_glb.py -- /usr/local/src/Voron-Stealthburner/STLs/Stealthburner/'[o]_stealthburner_LED_carrier.stl' /tmp/out.glb
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Thu Mar 5 09:21:59 PST 2026
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Blender 5.0.0 (hash a37564c4df7a built 2025-11-18 10:44:21)
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Timer 'STL Import' took 25.77 ms
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INFO Draco mesh compression is available, use library at /opt/blender-bin-5.0.0/5.0/scripts/addons_core/io_scene_gltf2/libextern_draco.so
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09:22:00 | INFO: Starting glTF 2.0 export
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09:22:00 | INFO: Extracting primitive: [o]_stealthburner_LED_carrier
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09:22:00 | INFO: Primitives created: 1
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09:22:00 | INFO: Finished glTF 2.0 export in 0.008149147033691406 s
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Wrote: /tmp/out.glb
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Blender quit
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real 0m0.938s
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user 0m0.823s
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sys 0m0.206s
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jlpoole@jp ~/work/Voron/voronstl $ ls -la /tmp/out.glb
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-rw-r--r-- 1 jlpoole jlpoole 154128 Mar 5 09:22 /tmp/out.glb
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jlpoole@jp ~/work/Voron/voronstl $
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### Step 3B - tree of glbs
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Use Perl script: extract_first_path.pl v. 11
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find /usr/local/src/Voron-Stealthburner/STLs -name '*.stl' -print0 |
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while IFS= read -r -d '' f; do
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blender-bin-5.0.0 --background --python create_glb.py -- "$f"
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done
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find /home/jlpoole/work/Voron/Klicky-Probe -name '*.stl' -print0 |
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while IFS= read -r -d '' f; do
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echo "$f"
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#blender-bin-5.0.0 --background --python create_glb.py -- "$f"
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done
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Caution: make sure you have the directory only relevant to your build. For example Klicky-Probe has 186 STLs in its tree, but for the Voron Trident, we only are interested in 14 of the project's files.
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jlpoole@jp ~/work/Voron/test2 $ find /home/jlpoole/work/Voron/Klicky-Probe -name '*.stl' -print0 | while IFS= read -r -d '' f; do echo "$f"
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done |wc -l
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186
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jlpoole@jp ~/work/Voron/test2 $
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But,
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jlpoole@jp ~/work/Voron/renderlab $ cat /home/jlpoole/workstation/perl/Voron/manifest.txt | grep Klicky |wc -l
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14
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jlpoole@jp ~/work/Voron/renderlab $ |