- Qt 5.15
- Qt 3D
- QML Types
- Effect QML Type
- Qt 5.15.18 Reference Documentation

# Effect QML Type

The base class for effects in a Qt 3D scene. More...

Import Statement: | import Qt3D.Render 2.15
Since: | Qt 5.7
Instantiates: | QEffect
Inherits: | Node

- List of all members, including inherited members

## Properties

- parameters : list<Parameter>
- techniques : list<Technique>

## Detailed Description

The Effect type combines a set of techniques and parameters used by those techniques to produce a rendering effect for a material.

An Effect instance should be shared among several Material instances when possible.

A Parameter defined on a Effect overrides parameter (of the same name) defined in Technique and RenderPass, but are overridden by parameter in RenderPassFilter, TechniqueFilter and Material.

Note: Effect node can not be disabled.

     Effect {
         id: effect

         technique: [
             Technique {
                 id: gl3Technique
                 graphicsApiFilter {
                     api: GraphicsApiFilter.OpenGL
                     profile: GraphicsApiFilter.CoreProfile
                     majorVersion: 3
                     minorVersion: 1
                 }
                 renderPasses: [
                     RenderPass {
                         id: gl3Pass
                         shaderProgram: ShaderProgram {
                             ...
                         }
                     }
                 ]
             }
         ]
     }

See also Material, Technique, and Parameter.

## Property Documentation

parameters : list<Parameter>

Holds the list of parameters used by this effect. A parameter is used to set a corresponding uniform value in the shader used by this effect.

techniques : list<Technique>

Holds the list of techniques used by this effect.