safety, glbs now have no sanitizing of file names; png & webP conversions work

2026-03-05 13:53:27 -08:00 · 2026-03-05 13:53:27 -08:00 · 8181c9b2d4
commit 8181c9b2d4
parent 358dd3eac0
11 changed files with 267 additions and 878 deletions
--- a/exercises/create_glbs/README.md
+++ b/exercises/create_glbs/README.md
@ -0,0 +1,80 @@
+# Goal
+1) Create a single glb (binary glTF [Graphics Library Transmission Format])from an STL file. This is for testing or proof-of-concept.
+2) Create a directory tree of conversions.  This would be for production.
+   
+# Introduction
+This procedure will use Blender to create glbs from the STLS in the source tree.
+# Prerequisites
+Source area for the Voron GitHub repositories containing STLs
+ROOT directory to serve as a staging area for placing the glbs (and the HTML manifest and eventually pngs)
+Blender (v. 5.0+)
+
+# Procedure
+## Step 1
+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. 
+
+Example:
+
+    mkdir /home/jlpoole/work/Voron/test1
+
+## Step 3
+cd to [THIS PROJECT]/ root directory.  
+
+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``` :
+
+    cd /home/jlpoole/work/Voron/voronstl
+
+### Step 3A - single glb
+Execute:
+    blender-bin-5.0.0 --background --python create_glb.py -- \
+        [PATH TO A SINGLE STL FILE] \
+        [OUTPUT PATH & FILE]
+Example:
+
+    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
+    Thu Mar  5 09:21:59 PST 2026
+    Blender 5.0.0 (hash a37564c4df7a built 2025-11-18 10:44:21)
+    Timer 'STL Import' took 25.77 ms
+    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
+    09:22:00 | INFO: Starting glTF 2.0 export
+    09:22:00 | INFO: Extracting primitive: [o]_stealthburner_LED_carrier
+    09:22:00 | INFO: Primitives created: 1
+    09:22:00 | INFO: Finished glTF 2.0 export in 0.008149147033691406 s
+
+    Wrote: /tmp/out.glb
+
+    Blender quit
+
+    real    0m0.938s
+    user    0m0.823s
+    sys     0m0.206s
+    jlpoole@jp ~/work/Voron/voronstl $ ls -la /tmp/out.glb 
+    -rw-r--r-- 1 jlpoole jlpoole 154128 Mar  5 09:22 /tmp/out.glb
+    jlpoole@jp ~/work/Voron/voronstl $ 
+
+
+### Step 3B - tree of glbs
+
+Use  Perl script: extract_first_path.pl v. 11
+
+find /usr/local/src/Voron-Stealthburner/STLs -name '*.stl' -print0 |
+  while IFS= read -r -d '' f; do
+    blender-bin-5.0.0 --background --python create_glb.py -- "$f"
+  done
+
+find  /home/jlpoole/work/Voron/Klicky-Probe -name '*.stl' -print0 |
+  while IFS= read -r -d '' f; do
+     echo "$f"
+    #blender-bin-5.0.0 --background --python create_glb.py -- "$f"
+  done
+
+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. 
+
+    jlpoole@jp ~/work/Voron/test2 $ find  /home/jlpoole/work/Voron/Klicky-Probe -name '*.stl' -print0 |   while IFS= read -r -d '' f; do      echo "$f"
+    done |wc -l
+    186
+    jlpoole@jp ~/work/Voron/test2 $ 
+But,
+    jlpoole@jp ~/work/Voron/renderlab $ cat /home/jlpoole/workstation/perl/Voron/manifest.txt | grep Klicky |wc -l
+    14
+    jlpoole@jp ~/work/Voron/renderlab $