To display: In the render tree, choose Show Preferences.
Node Creation Mode
Specifies the default state of new nodes in the render tree. Choose one of the following options:
Create Nodes as Expanded: New nodes are expanded by default.
Create Nodes as Collapsed: New nodes are collapsed by default.
Create Nodes as Show Connections Only: New nodes are collapsed except for connected parameters.
Draw Connectors as Curved Lines
When activated, connection lines between shaders are curved. When deactivated, they are horizontal and vertical.
View Thumbnails
Toggles the display of thumbnails in Image Clip shaders.
View Shaderballs
Toggles the display of shaderballs in shader nodes.
High Quality Text (Windows Only)
Displays text at a higher quality.
Bird's Eye View
Toggles the Bird's Eye View in the top right corner of the tree view. You can click or click-and-drag in the bird's eye view to pan the tree.