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-rw-r--r--README.md1
-rw-r--r--doc/ranger.pod11
-rwxr-xr-xranger/data/scope.sh24
3 files changed, 36 insertions, 0 deletions
diff --git a/README.md b/README.md
index bf1533a6..8134bc59 100644
--- a/README.md
+++ b/README.md
@@ -105,6 +105,7 @@ For enhanced file previews (with `scope.sh`):
 * `odt2txt` for OpenDocument text files (`odt`, `ods`, `odp` and `sxw`)
 * `python` or `jq` for JSON files
 * `fontimage` for font previews
+* `openscad` for 3D model previews (`stl`, `off`, `dxf`, `scad`, `csg`)
 
 Installing
 ----------
diff --git a/doc/ranger.pod b/doc/ranger.pod
index 911b6480..33b16b92 100644
--- a/doc/ranger.pod
+++ b/doc/ranger.pod
@@ -1974,6 +1974,17 @@ I<highlight> will pick up command line options specified in this variable. A
 C<--style=> option specified here will override C<HIGHLIGHT_STYLE>. Similarly,
 C<--replace-tabs=> will override C<HIGHLIGHT_TABWIDTH>.
 
+=item OPENSCAD_COLORSCHEME
+
+Specifies the colorscheme used by I<openscad> while previewing 3D models. Read
+I<openscad> man page for colorschemes. Ranger will default to Tomorrow Night.
+
+=item OPENSCAD_IMGSIZE
+
+Specifies the internal resolution I<openscad> will use for rendering 3D models.
+The image will be downscaled to fit the preview pane. This resolution will
+default to "1000,1000" if no value is set.
+
 =item XDG_CONFIG_HOME
 
 Specifies the directory for configuration files. Defaults to F<$HOME/.config>.
diff --git a/ranger/data/scope.sh b/ranger/data/scope.sh
index caa9475f..f2b9ff9c 100755
--- a/ranger/data/scope.sh
+++ b/ranger/data/scope.sh
@@ -44,6 +44,8 @@ HIGHLIGHT_TABWIDTH=${HIGHLIGHT_TABWIDTH:-8}
 HIGHLIGHT_STYLE=${HIGHLIGHT_STYLE:-pablo}
 HIGHLIGHT_OPTIONS="--replace-tabs=${HIGHLIGHT_TABWIDTH} --style=${HIGHLIGHT_STYLE} ${HIGHLIGHT_OPTIONS:-}"
 PYGMENTIZE_STYLE=${PYGMENTIZE_STYLE:-autumn}
+OPENSCAD_IMGSIZE=${RNGR_OPENSCAD_IMGSIZE:-1000,1000}
+OPENSCAD_COLORSCHEME=${RNGR_OPENSCAD_COLORSCHEME:-Tomorrow Night}
 
 handle_extension() {
     case "${FILE_EXTENSION_LOWER}" in
@@ -95,6 +97,28 @@ handle_extension() {
             python -m json.tool -- "${FILE_PATH}" && exit 5
             ;;
 
+        ## 3D models
+        ## OpenSCAD only supports png image output, and ${IMAGE_CACHE_PATH} is
+        ## hardcoded as jpeg. So we make a tempfile.png and just move/rename it
+        ## to jpg This works because image library is smart enough to handle it
+        stl|off|dxf)
+            [[ "${PV_IMAGE_ENABLED}" != 'True' ]] && exit 1
+            openscad --colorscheme="${OPENSCAD_COLORSCHEME}" \
+                    --imgsize="${OPENSCAD_IMGSIZE/x/,}" \
+                    -o "/tmp/$(basename "${FILE_PATH}").png" \
+                    <(echo "import(\"${FILE_PATH}\");")
+            mv "/tmp/$(basename "${FILE_PATH}").png" "${IMAGE_CACHE_PATH}" \
+                    && exit 6
+            ;;
+        scad|csg)
+            [[ "${PV_IMAGE_ENABLED}" != 'True' ]] && exit 1
+            openscad --colorscheme="${OPENSCAD_COLORSCHEME}" \
+                    --imgsize="${OPENSCAD_IMGSIZE/x/,}" \
+                    -o "/tmp/$(basename "${FILE_PATH}").png" "${FILE_PATH}"
+            mv "/tmp/$(basename "${FILE_PATH}").png" "${IMAGE_CACHE_PATH}" \
+                    && exit 6
+            ;;
+
         ## Direct Stream Digital/Transfer (DSDIFF)
         dsf)
             mediainfo "${FILE_PATH}" && exit 5