#include <micronodes.h>

详细描述

BatchMicroNode is the base class for custom micro nodes which shall receive a batch of input values in their Process method and compute the corresponding output values. You should prefer this over a BasicMicroNode when the Process method consists of just a few simple operations: Then the calling overhead of nodes is significant, and it can be reduced when a single call to Process handles a whole batch of values. Of course this only holds when there is a proper batch of values, for example in the context of shading there's usually just one set of values.

To implement a BatchMicroNode , you have to derive a new class from BatchMicroNode and add a function template { Result<void> Process(Batch<...>&)} (no const in front of Batch) to that class with a list of those ports between the angular brackets which shall be accessed by the node. Within the Process method you have to write a for loop over the batch as in the example shown below. The ports have to be defined by MAXON_PORT macros in a micro node group class. Usually the BatchMicroNode class is a member of that micro node group class:

// This class defines a micro node group which adds batches of two Int values by a BatchMicroNode. class MyBatchAddNode { public: // Declaration of the input and output ports of the micro node group. MAXON_PORT_INPUT(Int, in1); MAXON_PORT_INPUT(Int, in2); MAXON_PORT_OUTPUT(Int, out);