Methods you can implement to use your own custom Metal or OpenGL drawing code to render content for a node.
- iOS 8.0+
- macOS 10.8+
- tvOS 9.0+
- watchOS 3.0+
Typically, you use a node renderer delegate to perform custom rendering that is anchored at a location in the scene. For example, you can attach a node with a renderer delegate to part of a scene in order to add a special effect rendered using your own Metal or OpenGL drawing code, such as a fluid simulation. To provide a renderer delegate for an
SCNNode object, use its
SceneKit performs no rendering of its own for a node with a render delegate, so this protocol is not appropriate for customizing SceneKit’s rendering of geometry and materials. Instead, use methods in the
SCNShadable protocol to extend SceneKit’s rendering using shader programs written in the Metal shading language or the OpenGL Shading Language (GLSL).