examples testing

.travis.yml

@@ -111,7 +111,9 @@ script:
 - pytest tests/test_graph.py tests/test_scene.py
 
 # make sure examples still work
-- for f in examples/*py*; do python tests/notebooks.py exec "$f"; done
+- cd examples
+- set -xe; for f in *py*; do python ../tests/notebooks.py exec "$f"; done
+- cd ..
 
 after_success:
 - coveralls

examples/offscreen_render.py

@@ -38,7 +38,7 @@
 
         # saving an image requires an opengl context, so if -nw
         # is passed don't save the image
-        if not '-nw' in sys.argv:
+        try:
             # increment the file name
             file_name = 'render_' + str(i) + '.png'
             # save a render of the object as a png
@@ -47,3 +47,6 @@
             with open(file_name, 'wb') as f:
                 f.write(png)
                 f.close()
+
+        except BaseException as E:
+            print("unable to save image", str(E))

trimesh/version.py

@@ -1 +1 @@
-__version__ = '2.33.35'
+__version__ = '2.33.36'