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.Note
QEffect
node can not be disabled.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 aQEffect
overrides parameter (of the same name) defined inQTechnique
andQRenderPass
, but are overridden by parameter inQRenderPassFilter
,QTechniqueFilter
andQMaterial
.See also
QMaterial
QTechnique
QParameter
- class PySide2.Qt3DRender.Qt3DRender.QEffect([parent=None])¶
- Parameters:
parent –
PySide2.Qt3DCore.Qt3DCore.QNode
- PySide2.Qt3DRender.Qt3DRender.QEffect.addParameter(parameter)¶
- Parameters:
parameter –
PySide2.Qt3DRender.Qt3DRender.QParameter
Adds
parameter
to the effect. It sends an update 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:
Adds a new technique
t
to the effect. It sends an update 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 –
PySide2.Qt3DRender.Qt3DRender.QParameter
Removes a parameter
parameter
from the effect.
- PySide2.Qt3DRender.Qt3DRender.QEffect.removeTechnique(t)¶
- Parameters:
Removes a technique
t
from the effect.
- PySide2.Qt3DRender.Qt3DRender.QEffect.techniques()¶
- Return type:
Returns the list of techniques used by the effect.
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