Object editor

When an object is double-clicked in the Objects toolbox, an editor opens in the main window area. It displays the object as a tree of nodes, detailing in a structured way how the object works.

Screenshot of the object editor

Tree editing

Editing node properties

Clicking on a node opens its properties on the right pane. Here, a blend texture is selected, and its options can be edited on the right.

Changing node type

There are two ways of changing the type of a node:

  • Select it, and use the choice list at the top right corner of the parameter pane

  • Right-click on it, and use the “Change type” menu.

Enabling a node

If a node is disabled (greyed out), you can enable it by right-clicking on it, and use the “Add” menu.

Disabling a node

Right-click on the node, and use “Disable”

Remark : some nodes cannot be disabled

Applying or cancelling object changes

When an object is modified in the tree editor, the changes are not applied immediately to the scene. Press Apply to validate, or Cancel to rollback to the initial state.

Detailed example

The object node

Material The object itself is the first node on the left. This is a material of type blend, named previewmaterial

Children nodes

It has four children nodes:

  • A medium (disabled)

  • A normal shader

  • An emitter

  • A BSDF

The Blend BSDF defines a linear combination of two other BSDFs. Children bsdf1 and bsdf2 are blended together with a ratio equal to the value of the blend scalar function, which may vary in space.

In the node tree view, some nodes can be folded for clarity. They may be unfolded by clicking on the little arrow on the right.

BSDF 1

BSDF 1 is of specular type. It has 1 child:

  • intlaw defines the optical law ruling light crossing the interface. It is set to complex fresnel type.

BSDF 2

BSDF 2 is of Oren-Nayar type. It has 2 children:

  • diffuse sets the diffuse color or spectrum of this BRDF.

  • sigma sets the corresponding parameter in the Oren-Nayar model