Autodesk 12812-051462-9011 User Guide 3 - Page 821

To Render is set to Region, you can edit the region both in the Rendered Frame Window and in the active viewport. If Area To Render is set to View or Selected, clicking Edit Region switches to Region mode. When Area To Render is set to Crop or Blowup, you can edit the region only in the active viewport, because in those cases the Rendered Frame Window doesn't necessarily reflect the same area as the viewport. Hence, also in Crop and Blowup modes, a warning icon on page 6076 appears to the right of the Auto Region Selected. The icon's tool tip suggests that you edit the region in the viewport. A warning also appears in Region mode if the Rendered Frame Window area doesn't match the active viewport. Turning on Edit Region automatically activates the Show Safe Frame on page 7583 function in the active viewport. NOTE 3ds Max maintains two separate render regions: one for Region and Crop, and another for Blowup. Changing the Area To Render option activates the relevant render region. The same command is available from the viewport right-click menu, as Edit Render Region on page 7583. Auto Region Selected When on, sets the region for Region, Crop, and Blowup automatically to the current selection. This auto-region is calculated at render time and does not overwrite the user-editable regions. If Area To Render is set to View or Selected, clicking Auto Region Selected switches to Region mode. [warning] This warning symbol appears when Area to Render on page 6075 is set to Crop or Blowup, accompanied by a tool tip that tells you to edit the Crop or Blowup region in the viewport. It also appears in Region mode if the Rendered Frame Window doesn't show the same area as the viewport (that is, if you previously rendered in Crop or Blowup mode). Viewport Shows the viewport that renders when you click the Render button. The drop-down list contains all visible viewports. To specify a different viewport to render, choose it from the list or activate it in the main user interface. Activating a different viewport in the main interface automatically updates this setting if Lock To Viewport is off. 6076 | Chapter 20 Rendering