Matte Object
When this attribute is on, the attached objects act as a matte holdout. Matte objects are not shaded and behave as if they were completely opaque, hiding any objects behind them, but appear in the image as transparent black pixels. This attribute is off by default.
Composite Objects Behind
When this attribute is off, the attached objects, even if semi or completely transparent, will mask all objects behind them. This attribute is on by default.
Visible To Camera
If this attribute is turned on, the attached objects are visible to the camera. By default, this attribute is on. Note that turning this attribute off will simply make the attached objects invisible to the camera; they will still be exported to RIB.
Transmission Rays (shadows)
This attribute specifies the visibility of the object relative to ray traced shadow rays, or transmission rays.
Specular Rays (reflections and refractions)
Specifies the visibility of the object in reflections and refractions. Objects shaded using Maya’s Hypershade can further refine if they are visible in reflections and refractions using the relevant Render Stats; see Maya Render Stats and 3Delight Attributes.
Diffuse Rays
Specifies the if the object is bouncing light for the indirect illumination effects.
Visible To Photons
When this attribute is on, the attached objects surfaces will interact with photons according to the selected "Shading Model" (see Global Illumination). This attribute is on by default.
Possible values for transmission, specular and diffuse rays are summarized in the following table.
| Value | Description |
|---|---|
| Invisible______ | The object is not visible to ray traced rays. |
| Opaque | The object is visible to ray traced rays; it is considered fully opaque and white. |
| Primitive Color | The object is visible to ray traced rays; these rays will be affected by the object’s "Color" and "Opacity" attributes in a Geometry Attribute Node (see General). |
| Shader Color | The most expensive mode: the renderer will evaluate the surface using the attached shader to determine the color and opacity. This is the default option. |