use relative imports for povray

render_povray/__init__.py

@@ -41,8 +41,8 @@ if "bpy" in locals():
 else:
     import bpy
     from bpy.props import StringProperty, BoolProperty, IntProperty, FloatProperty, FloatVectorProperty, EnumProperty
-    from render_povray import render
-    from render_povray import ui
+    from . import render
+    from . import ui
 
 
 def register():