There are five types of Render Kernels in OctaneRender®: Direct Lighting, Info Channels, PMC, Photon Tracing, and Path Tracing. The kernels are accessible by clicking on the Kernel button in the Node Inspector and choosing the kernel type from the Kernel parameter drop-down menu (figure 1).


Kernel Types

Figure 1: Kernel Types are found in the parameters for the Render Target


A Kernel node can also be created in the Node Graph Editor and connected to the Kernel pin on a Render Target node (figure 2).


Adding KErnels in Node Graph

Figure 2: Adding a Render Kernel node to the Node Graph and connecting it to the Render Target


The Kernel nodes can be accessed by right-clicking in the Node Graph Editor and choosing the Kernels category (figure 3).There is a Kernel Switch node under the Utility section. This can be used to switch between different kernel types assigned to one Render Target node.


Accessing KErnel Nodes

Figure 3: Add a Render Kernel node from the Node Graph Editor