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6.7.1 Color Canvases attributes

 
Render Settings Output tab when Iray Interactive is selected
 
Iray can render up to twenty color canvases in a single rendering process. For Iray Interactive only the mode "Radiance" is available.
 
Type
For each color canvas exists a separate section to configure it:
 
Type Disabled
This canvas is disabled, i.e. no image is written.
 
Type All
A framebuffer that contains the so-called beauty pass (emission, diffuse, glossy, and specular).
 
Type Diffuse
A framebuffer that contains the diffuse contribution, i.e. "L.*DE". The last event on the light path before the eye was a diffuse event.
 
Type Glossy
A framebuffer that contains the glossy contribution, i.e. "L.*GE". The last event on the light path before the eye was a glossy event.
 
Type Specular
A framebuffer that contains the specular contribution, i.e. "L.*SE". The last event on the light path before the eye was a specular event.
 
Type Emission
A framebuffer that contains the emission contribution, i.e. "LE", from directly visible light sources and emitting surfaces.
 
Type Environment
A framebuffer that shows only the emission from the environment light, i.e. "LeE".
 
Alpha
This attributes allows to toggle whether an alpha channel for the predefined framebuffer should be rendered or not. The content of the written alpha channel varies between the predefined LPE Diffuse, Glossy, Specular, Emission and Environment.
 
Type Light Pass Expression
A framebuffer that contains the contribution if all light paths defined by the LPE attribute.
 
Alpha LPE
A framebuffer that contains objects contribute to the Alpha channel defined by the LPE attribute.
 
Note:
 
If Light Path Expression is chosen only an alpha channel will be written until a valid Light Path Expression for Alpha LPE exists.