NodeSpaceInterface Manual

Table of Contents

• About
• Access

About

A node space represents a container for a node system for a specific purpose. For example, a NodeMaterial can contain multiple node systems; one for each node-based render engine.

For custom node spaces, see NodeSpaceInterface Implementation.

Access

Node spaces are stored in the maxon::nodes::MaterialNodeSpaces registry. The active node space ID is obtained with GetActiveNodeSpaceId(). The default node space is:

• maxon::nodes::MaterialNodeSpaces::Standard: The standard node space.

  // This example checks if the active node space is the standard node space.
  
  // get standard node space ID
  const maxon::Id standardNodeSpace = maxon::nodes::MaterialNodeSpaces::Standard.GetId();
 
  // get active node space ID
  const maxon::Id activeNodeSpace = GetActiveNodeSpaceId();
 
  // compare
  if (standardNodeSpace == activeNodeSpace)
  {
    ApplicationOutput("Active Node Space is standard Node Space");
  }

A node space stores various settings. The most important are:

• maxon::nodes::NODESPACE::SPACENAME: The name of the node space.
• maxon::nodes::NODESPACE::RENDERERS: The IDs of the associated render engines (VideoPostData plugin IDs).

For more settings, see MAXON_ATTRIBUTE from the maxon::nodes::NODESPACE.

Note

The Cinema 4D standard renderer has the ID 0.

    // This example gets the active node space and prints all data to the console.
 
    // access node space
    const maxon::Id activeNodeSpace = GetActiveNodeSpaceId();
    maxon::nodes::NodeSpaceRef nodeSpace = maxon::nodes::MaterialNodeSpaces::Get(activeNodeSpace);
 
    // get all data.
    maxon::DataDictionary spaceData = nodeSpace.GetData();
 
    for (const auto& data : spaceData)
    {
      const maxon::Data key = data.first.GetCopy() iferr_return;
      const maxon::Data value = data.second.GetCopy() iferr_return;
      const maxon::DataType type = value.GetType();
      DiagnosticOutput("Key: @, Value: @ (@)", key, value, type);
    }
 
    // get node space name
    const maxon::String name = spaceData.Get(maxon::nodes::NODESPACE::SPACENAME) iferr_return;
    DiagnosticOutput("Node Space Name: @", name);
 

    // This example gets the list of all supported renderers for each node space.
 
    // loop node spaces
    for (const auto& it : maxon::nodes::MaterialNodeSpaces::GetEntries())
    {
      const maxon::nodes::NodeSpaceRef nodeSpace = it;
 
      // get node space data
      const maxon::DataDictionary      spaceData = nodeSpace.GetData();
 
      // get node space ID
      const maxon::Id spaceID = spaceData.GetOrDefault(maxon::nodes::NODESPACE::SPACEID);
      DiagnosticOutput("Node Space ID: @", spaceID);
 
      // get node space renderers
      const maxon::Array<maxon::Int> renderer = spaceData.GetOrDefault(maxon::nodes::NODESPACE::RENDERERS);
 
      for (const maxon::Int& id : renderer)
      {
        DiagnosticOutput("Renderer: @", id);
      }
    }