A debug tool useful to see what's wrong with your geometry.
    
                  
                
                
                Parameters
                
                  - 
                    Blending Mode (Blending Mode) : How this vertex referential gets blended
                  
- 
                    Depth Buffer (Renderer Depth Settings) : Depth-buffer related settings
                  
- 
                    Referential (Referential Choice) : Referential of the vertex referential
                  
- 
                    Use Cross Normal (On/off option) : Use cross normal of the vertex referential
                  
- 
                    Length (Positive floating point number) : Length of the vertex referential
                  
- 
                    Tangent (On/off option) : Tangent of the vertex referential
                  
- 
                    Normal (On/off option) : Normal of the vertex referential
                  
- 
                    Bitangent (On/off option) : Bi-tangent of the vertex referential