Octane 2.1 Features

Render PassesRender passes allow a rendered frame to be further broken down beyond the capabilities of Render Layers. Render Passes vary among render engines but typically they allow an image to be separated into its fundamental visual components such as diffuse, ambient, specular, etc..

A new node has been added to the Rendertarget for Render Passes. By default, all passes are off, but you can enable individual passes, and when the Viewport is open, those enabled passes can be viewed via the Render Passes drop-down box in the Viewport.

The render statistics show the samples/pixel for the current render pass.

The two important pins in the Render Passes node are:

Roughness Threshold: To distinguish between specular and glossy materials. MaterialsA set of attributes or parameters that describe surface characteristics. with roughness < threshold are considered specular, material with roughness > threshold are considered glossy.
Minimum Info Start Samples: The minimum amount of samples we need to have rendered for the beauty passes before we’re allowed to start rendering the info passes. 0 means that we wait until all the beauty passes are finished. In order to force Info render passes to be immediately available, set this value to 1.

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