Disabling or Enabling mental ray Extensions in the 3ds Max Interface

Use the CurrentDefaults.ini file to disable or enable display of mental ray extension controls.

These are the features enabled as mental ray extensions to 3ds Max:

• mental ray Connection rollout for materials (Material Editor)
• mental ray Light Shader rollout (Modify panel for lights)

Warning: If you have assigned shaders and adjusted their settings using the mental ray Connection rollout, disabling mental ray extensions will lose all these assignments and settings. The same applies to light shader assignments.

To disable mental ray extension display:

1. Use a text editor to open the file CurrentDefaults.ini.

   This file is in the folder C:\Users\<userid>\AppData\Local\Autodesk\3ds Max\2016 - 64bit\ENU\en-US\defaults\MAX\.

2. Locate the section titled "mental ray extensions preference."

   ;mental ray extensions preference
   ;	kDefault_CustomAttribsActive=1 == mental ray extensions at on
   ;	kDefault_CustomAttribsActive=1 == mental ray extensions at off
   [F00 58F67D6C 4FCF3BC3]
   ;mental ray extensions = off
   kDefault_CustomAttribsActive=1

3. Delete the semicolon at the head of the line, ;mental ray extensions = off.

   This turns the line from a comment into active code, with the off setting active.

To enable mental ray extension display:

1. Use a text editor to open the file CurrentDefaults.ini.

   This file is in the folder C:\Users\<userid>\AppData\Local\Autodesk\3ds Max\2016 - 64bit\ENU\en-US\defaults\MAX\.

2. Locate the section titled "mental ray extensions preference."
3. Restore the semicolon to the head of the line, ;mental ray extensions = off (or change the setting from off to on).