Add parameter 'includedirs' to render()

includedirs may contain a list of additional include directories that will be passed on as povray's +L parameter.

vapory/io.py

@@ -54,7 +54,7 @@ def ppm_to_numpy(filename=None, buffer=None, byteorder='>'):
 
 def render_povstring(string, outfile=None, height=None, width=None,
                      quality=None, antialiasing=None, remove_temp=True,
-                     show_window=False, tempfile=None):
+                     show_window=False, tempfile=None, includedirs=None):
 
     """ Renders the provided scene description with POV-Ray.
 
@@ -103,6 +103,9 @@ def render_povstring(string, outfile=None, height=None, width=None,
         cmd.append('-D')
     else:
         cmd.append('+D')
+    if includedirs is not None:
+        for dir in includedirs:
+            cmd.append('+L%s'%dir)
     cmd.append("Output_File_Type=%s"%format_type)
     cmd.append("+O%s"%outfile)
     process = subprocess.Popen(cmd, stderr=subprocess.PIPE,

vapory/vapory.py

@@ -54,7 +54,8 @@ def add_objects(self, objs):
 
     def render(self, outfile=None, height=None, width=None,
                      quality=None, antialiasing=None, remove_temp=True,
-                     auto_camera_angle=True, show_window=False, tempfile=None):
+                     auto_camera_angle=True, show_window=False, tempfile=None,
+                     includedirs=None):
 
         """ Renders the scene to a PNG, a numpy array, or the IPython Notebook.
 
@@ -79,7 +80,8 @@ def render(self, outfile=None, height=None, width=None,
             self.camera = self.camera.add_args(['right', [1.0*width/height, 0,0]])
 
         return render_povstring(str(self), outfile, height, width,
-                                quality, antialiasing, remove_temp, show_window, tempfile)
+                                quality, antialiasing, remove_temp, show_window,
+                                tempfile, includedirs)
 
 
 class POVRayElement: