TextureMask the vertices with a layer or a Compo, depending on what you want: the UV map of the 3D Layer, it's normals, a sphere, etc...
                  
                
                
                Parameters
                
                  - 
                    Horizontal (3D Mask) :   Horizontal of the texture geometry mask
                  
- 
                    Vertical (3D Mask) :   Vertical of the texture geometry mask
                  
- 
                    Generator (2D Generator) : Select the 
                    2D Generator
                    The part of a 2D layer that generates the image
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- 
                    Color Selector (Color Selector) :   Color selector of the texture geometry mask
                    
                    Parameters common to all Elements
                      - 
                        Loading (Activation State) :         The loading status of the color selector. It can be 
                        
                          loaded
                        , 
                        
                          enabled by not loaded
                         or 
                        
                          unloaded
                        
                      
- 
                        Activation (Activation State) :         The activation status of the color selector. It can be 
                        
                          active
                        , 
                        
                          enabled by not active
                         or 
                        
                          inactive
                        
                      
- 
                        Color Label (sRGB Color) :         Associate a color label to your color selector to make it easily locatable
      
                      
- 
                        Solo (On/off option) :         Activate this to keep only this color selector active and hide all other color selectors in same location
      
                      
- 
                        Editable (Activation State) :         The editabiliy status of the color selector. It can be 
                        
                          locked directly
                        , 
                        
                          locked indirectly
                         or 
                        
                          editable
                        
                      
- 
                        Preset (Element Preset Selector) :         Select a preset to apply on the color selector
                      
- 
                        Status (Object's errors and warnings) :         Warnings and errors associated to this color selector
                      
 
Presets
                
                Standard Presets: Layer Noise, Parent Input and Video Input