Using
            this feature, you can control the color profile associated with
            inputs to and outputs from the rendering process. Certain scene
            elements can have color profile information attached to them, namely,
            file textures, render passes, mental ray textures, and mental ray
            file output passes. Additionally, you can specify the color profile
            used for internal rendering color calculations.
         
         NoteThis feature is currently
               only supported for the mental ray for Maya renderer.
            
          
         You can enable color
            management through the 
                     Render Settings: Common tab and
            select your default input and output color profile. In order for
            color management to work, you must select Enable
               Color Management in the Common tab
            of your Render Settings window. Simply
            selecting a color profile under the scene elements or creating a colorProfile node
            in the Hypershade does not enable
            color management.
         
         TipEnabling color management
               can increase processing time.
            
          
         You can associate color
            profiles with different elements:
         
         
            - File Texture
               / mentalrayTexture node
               
                  - Indicates the color profile that the
                     texture source uses.
                  
 
               
             
            - Render Pass
               
                  - Indicates the color profile to be used
                     when writing the render pass to disk.
                  
 
               
             
            - mentalrayOutputPass node
               
                  - The attached color profile will dictate
                     the color profile for use when the image is written to disk. 
                  
 
               
               NoteYou must enable File
                        Mode under the mentalrayOutputPass node for
                     the Color Profile attribute to
                     be enabled.
                  
                
             
         
         To apply color management to your scene
         
         
            - Open the Render Settings window
               and select the Common tab. 
            
 
            - Select the Enable Color Management option.
               The color profile attributes become active.
            
 
            - Select a Default Input Profile from
               the drop-down list. This is the default color profile for file texture
               / mentalrayTexture nodes.
            
 
            - Select a Default Output Profile from
               the drop-down list. This is the default color profile for writing
               render passes or images to disk.
            
 
            - Select the render pass node for which
               you want to enable color management.
               
NoteThe same procedure
                     can be used to associate a color profile with other scene elements
                     such as a file texture. Simply replace renderPass node
                     with your scene element.
                  
                
             
            - In the render pass Attribute
                  Editor, use the Color Profile drop-down
               list to select the color profile to use when writing the render
               pass to disk. 
               
There are two sections
                  available in the Color Profile drop-down list. 
               
               Under the first section,
                  there is a list of built-in color profiles. Under the second section,
                  there is a list of any existing color profile nodes that are currently
                  in your scene.
               
               Note
                     
                        - If you first select an existing colorProfile node,
                           then change your mind and select a built-in color profile instead,
                           the colorProfile node still exists in
                           your scene. It is simply disconnected from your scene element.
                        
 
                        - If you select the default option under
                           the list of built-in color profiles, Maya will use the Default
                              Output Profile setting (for render pass or mentalrayOutputPass nodes)
                           or the Default Input Profile setting
                           (for file texture / mentalrayTexture nodes) that
                           you selected under the Render Settings: Common tab.
                        
 
                     
                   
                
             
         
         Creating a color profile
               node
            
            Color profile nodes are
               useful when you want to apply the same setting to multiple targets,
               for example, if the same color profile applies to multiple textures.
               This way, you can create a node, customize it and associate it with
               several scene elements.
            
            TipAll colorProfile nodes
                  that you have created are visible through the Hypershade,
                  under the Utilities tab.
               
             
          
         To create a colorProfile node (method
            1)
         
         
            - Select the File texture
               to which you want to connect a color profile node.
            
 
            - In the File Attribute
                  Editor, click the colorProfile node
               icon.  
 
               A colorProfile node
                  is created and connected to the File node
                  that you have selected. The colorProfile node
                  appears in the Attribute Editor along with
                  its associated File node and you can edit
                  its attributes.
               
             
         
         NoteThe same procedure
               can be used to create a colorProfile node
               and connect it to other scene elements such as render passes. Select
               the applicable scene element in step 1.
            
          
         To create a colorProfile node (method
            2)
         
         
            - Open the 
                        Hypershade. 
            
 
            - Under the Maya > Utilities section
               of the Create tab, click Color
                  Profile.
            
 
            - Select the scene element to which you
               want to connect your colorProfile node.
            
 
            -   
  the colorProfile node
               and select Apply to Selection.
               TipUsing this method,
                     you can connect your 
colorProfile node to multiple scene
                     elements in one step. For example, you can use a MEL script to select all
                     of your render passes, then  

  the 
colorProfile node
                     and select 
Apply to Selection to connect
                     your 
colorProfile node to all of
                     your passes.
                  
 
                
             
         
         NoteThe colorProfile node
               and up to 10 of its connected scene elements are displayed in the Attribute
                  Editor at one time. If your colorProfile node
               is connected to more than 10 scene elements, you can access these
               additional scene elements using the Hypergraph.