By Constantin Rahn:

-POV file formatting improvement with UI option and function to handle all tabs/spaces indentation (big clean up)
-use of quote characters made more consistent.

render_povray/__init__.py

@@ -69,6 +69,22 @@ def register():
             name="Enable Baking",
             description="Enable povrays texture baking",
             default=False)
+    Scene.pov_indentation_character = EnumProperty(
+            name="Indentation",
+            description="Select the indentation type",
+            items=(("0", "None", "No indentation"),
+               ("1", "Tabs", "Indentation with tabs"),
+               ("2", "Spaces", "Indentation with spaces")),
+            default="1")
+    Scene.pov_indentation_spaces = IntProperty(
+            name="Quantity of spaces",
+            description="The number of spaces for indentation",
+            min=1, max=10, default=3)
+    
+    Scene.pov_comments_enable = BoolProperty(
+            name="Enable Comments",
+            description="Add comments to pov and ini files",
+            default=True)
 
     # Real pov options
     Scene.pov_max_trace_level = IntProperty(
@@ -257,6 +273,9 @@ def unregister():
     del Scene.pov_media_color # MR
     del Scene.pov_baking_enable # MR
     del Scene.pov_max_trace_level # MR
+    del Scene.pov_indentation_character # CR
+    del Scene.pov_indentation_spaces #CR
+    del Scene.pov_comments_enable #CR
     del Mat.pov_irid_enable # MR
     del Mat.pov_mirror_use_IOR # MR
     del Mat.pov_mirror_metallic # MR    

render_povray/ui.py

@@ -300,7 +300,7 @@ class RENDER_PT_povray_radiosity(RenderButtonsPanel, bpy.types.Panel):
         col.prop(scene, "pov_radio_count", text="Rays")
         col.prop(scene, "pov_radio_recursion_limit", text="Recursions")
         col = split.column()
-        col.prop(scene, "pov_radio_error_bound", text="Error")
+        col.prop(scene, "pov_radio_error_bound", text="Error Bound")
 
         layout.prop(scene, "pov_radio_display_advanced")
 
@@ -349,6 +349,7 @@ class RENDER_PT_povray_media(RenderButtonsPanel, bpy.types.Panel):
 
         col = split.column()
         col.prop(scene, "pov_media_samples", text="Samples")
+        col = split.column()
         col.prop(scene, "pov_media_color", text="Color")
 
 
@@ -369,6 +370,29 @@ class RENDER_PT_povray_baking(RenderButtonsPanel, bpy.types.Panel):
 
         layout.active = scene.pov_baking_enable
 
+
+class RENDER_PT_povray_formatting(RenderButtonsPanel, bpy.types.Panel):
+    bl_label = "Formatting files"
+    COMPAT_ENGINES = {'POVRAY_RENDER'}
+
+    def draw(self, context):
+        layout = self.layout
+
+        scene = context.scene
+        rd = scene.render
+
+        split = layout.split()
+
+        col = split.column()
+        col.prop(scene, "pov_indentation_character", text="Indent")
+        col = split.column()
+        if scene.pov_indentation_character=="2": 
+            col.prop(scene, "pov_indentation_spaces", text="Spaces")
+        split = layout.split()
+        col = split.column()
+        col.prop(scene, "pov_comments_enable", text="Comments")
+
+
 class TEXTURE_PT_povray_tex_gamma(TextureButtonsPanel, bpy.types.Panel):
     bl_label = "Image Gamma"
     COMPAT_ENGINES = {'POVRAY_RENDER'}