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8.2 Iray attributes: Matte attributes

 
Attribute Editor: Iray Matte sub-section
 
 
Enable
Use Inherited
 Applies the settings for the Matte attribute of the parent node:
Yes
Enables the behaviour of the object as matte object. A matte object shows shadows and reflections only and is apart of that invisible.
No
Disables the matte behaviour of the object
 
Shadow Intensity
Use Inherited
 Applies the settings for this attribute of the parent node
 
Set
Use this attribute to darken or lighten the shadow on the matte object
 
Connect to Environment
Use Inherited
 Applies the settings for this attribute of the parent node
 
Yes
Secondary interactions with the matte object will use the environment instead of the backplate
 
No
Secondary interactions with the matte object will use the backplate instead of the environment
 
Note:
Only effective if a backplate function or the backplate color is set.
 
Connect from Camera
Use Inherited
 Applies the settings for this attribute of the parent node
 
Yes
Local effect, where similar interactions with the matte object (for example, the same point of intersection) will deliver the exact same lookup into the real world photograph, which usually works best for a very elaborate matte object setup specifically arranged for only a single or very similar camera positions.
 
No
Global effect, where the real interactions with the environment or backplate are used instead, which is usually preferrable for simple matte object setups (like plain shadow catchers) or full camera interaction.
 
Note:
The attribute Connect from Camera will only be noticable in scenes where no backplate/color at all is specified (so all interactions will always be happening with the environment), or if a backplate/color is specified and the Connect to Environment flag is set in addition.