Qt3DRender.QEffect¶
The base class for effects in a Qt 3D scene. More…

Synopsis¶
Functions¶
def
addParameter
(parameter)def
addTechnique
(t)def
parameters
()def
removeParameter
(parameter)def
removeTechnique
(t)def
techniques
()
Detailed Description¶
The
QEffect
class combines a set of techniques and parameters used by those techniques to produce a rendering effect for a material.An
QEffect
instance should be shared among severalQMaterial
instances when possible.QEffect *effect = new QEffect(); // Create technique, render pass and shader QTechnique *gl3Technique = new QTechnique(); QRenderPass *gl3Pass = new QRenderPass(); QShaderProgram *glShader = new QShaderProgram(); // Set the shader on the render pass gl3Pass->setShaderProgram(glShader); // Add the pass to the technique gl3Technique->addRenderPass(gl3Pass); // Set the targeted GL version for the technique gl3Technique->graphicsApiFilter()->setApi(QGraphicsApiFilter::OpenGL); gl3Technique->graphicsApiFilter()->setMajorVersion(3); gl3Technique->graphicsApiFilter()->setMinorVersion(1); gl3Technique->graphicsApiFilter()->setProfile(QGraphicsApiFilter::CoreProfile); // Add the technique to the effect effect->addTechnique(gl3Technique);A
QParameter
defined on an Effect is overridden by aQParameter
(of the same name) defined in aQMaterial
,QTechniqueFilter
,QRenderPassFilter
.See also
QMaterial
QTechnique
QParameter
-
class
PySide2.Qt3DRender.Qt3DRender.
QEffect
([parent=None])¶ - Parameters
parent –
QNode
-
PySide2.Qt3DRender.Qt3DRender.QEffect.
addParameter
(parameter)¶ - Parameters
parameter –
QParameter
Adds
parameter
to the effect. It sends a QPropertyNodeAddedChange to the backend. Theparameter
will be used to set a corresponding uniform value in the shader used by this effect.
-
PySide2.Qt3DRender.Qt3DRender.QEffect.
addTechnique
(t)¶ - Parameters
t –
QTechnique
Adds a new technique
t
to the effect. It sends a QPropertyNodeAddedChange to the backend.
-
PySide2.Qt3DRender.Qt3DRender.QEffect.
parameters
()¶ - Return type
Returns the list of parameters used by the effect.
-
PySide2.Qt3DRender.Qt3DRender.QEffect.
removeParameter
(parameter)¶ - Parameters
parameter –
QParameter
Removes a parameter
parameter
from the effect.
-
PySide2.Qt3DRender.Qt3DRender.QEffect.
removeTechnique
(t)¶ - Parameters
t –
QTechnique
Removes a technique
t
from the effect.
-
PySide2.Qt3DRender.Qt3DRender.QEffect.
techniques
()¶ - Return type
Returns the list of techniques used by the effect.