text: Title: Numpy missing in transforms/translate.py
  Body: Seems that there are some problems with transforms/translate.py:
  
  First, the import of numpy is missing in transforms/translate.py, what leads to an error on line 59. (NameError: name 'np' is not defined)
  
  Second (after inserting numpy import by myself), it will lead to a shader compile error:
  
  ```
  Error in Vertex shader 2 (<string>)
   -> ')' : syntax error: syntax error
  
   ...
   014 vec3 forward_2(float x, float y, float z)
   015 { return vec3(x,y,z) + translate_translate_2); }
   016 
   017 vec3 forward_2(vec3 P)
   018 { return P + translate_translate_2; }
   ...
  ```
  
  I can add more details if necessary.
  