Protocol

SCNTechniqueSupport

The common interface for SceneKit objects that support multipass rendering using SCNTechnique objects.

Declaration

@protocol SCNTechniqueSupport

Overview

Techniques let you specify approaches to rendering a scene that involves multiple drawing passes. For example, you might create a technique that uses a shader program to postprocess a rendered scene on the GPU, creating special effects such as color grading, screen-space ambient occlusion, or motion blur. Different SceneKit objects support techniques in different ways, summarized in Table 1.

Table 1

Technique support in SceneKit

Class	Description
`SCNView`, `SCNLayer` (macOS), `SCNRenderer`	Apply effects whenever the scene is rendered.
`SCNCamera`	Apply effects when the camera is the current point of view.
`SCNLight`	Apply effects when the light is enabled.

Topics

Specifying a Technique

technique

The technique SceneKit uses when rendering the object.

Required.

Relationships

Inherits From

NSObject