Details
P4: Low Description
I'm using PySide6 on Python 3.11 on Mac, Windows and Linux. I'm trying to create a Trackball to Qt3D in Python based on this https://github.com/cjmdaixi/Qt3DTrackball. So I'm creating the `TrackballCameraController` inheriting from `QAbstractCameraController.moveCamera`. Here a simple sample:
import sys from typing import Optional from PySide6.Qt3DCore import Qt3DCore from PySide6.Qt3DExtras import Qt3DExtras from PySide6.Qt3DInput import Qt3DInput from PySide6.Qt3DRender import Qt3DRender from PySide6.QtCore import QObject, QPoint, QSize, QUrl from PySide6.QtGui import QColor, QGuiApplication, QVector3D, qRgb from PySide6.QtWidgets import QApplication class TrackballCameraController(Qt3DExtras.QAbstractCameraController): def __init__(self, parent: Optional[Qt3DCore.QNode]=None): super().__init__(parent) def moveCamera(self, state: Qt3DExtras.QAbstractCameraController.InputState, dt: float): print("moveCamera") def create_sphere(parent: Qt3DCore.QEntity) -> Qt3DCore.QEntity: # Create sphere mesh sphere_mesh = Qt3DExtras.QSphereMesh(parent) sphere_mesh.setRadius(3.0) # Create sphere material sphere_material = Qt3DExtras.QPhongMaterial(parent) # sphere_material.setDiffuse(QColor(255, 0, 0)) # sphere_transform = Qt3DCore.QTransform(parent) # sphere_transform.setTranslation(QVector3D(-3, -3, -3)) # Create sphere entity sphere_entity = Qt3DCore.QEntity(parent) sphere_entity.addComponent(sphere_mesh) sphere_entity.addComponent(sphere_transform) sphere_entity.addComponent(sphere_material) return sphere_entity if __name__ == "__main__": # Create application app = QGuiApplication(sys.argv) # Create window window = Qt3DExtras.Qt3DWindow() window.setTitle("Sphere Example") # Create root entity root_entity = Qt3DCore.QEntity() # Create sphere entity sphere_entity = create_sphere(root_entity) print(sphere_entity.components()) camera = window.camera() camera.setPosition(QVector3D(0.0, 0.0, 40.0)) camera.setViewCenter(QVector3D(0.0, 0.0, 0.0)) camera.lens().setPerspectiveProjection(45.0, 16.0 / 9.0, 0.1, 1000) camera_controller = TrackballCameraController(root_entity) camera_controller.setCamera(camera) # Set root entity as the root of the scene window.setRootEntity(root_entity) window.defaultFrameGraph().setClearColor(QColor(0, 0, 255)) # Show window window.show() # Run application sys.exit(app.exec())
On Mac I'm getting this error:
Qt3D.Renderer.RHI.Backend: Initializing RHI with Metal backend Traceback (most recent call last): File "/Users/thiago/Sources/qt3d_experiments/draw_sphere.py", line 73, in <module> sys.exit(app.exec()) ^^^^^^^^^^ NotImplementedError: pure virtual method 'QAbstractCameraController.moveCamera' not implemented.
But I implemented `moveCamera` in my child class... Is it correct to inherit from `QAbstractCameraController`? Do I need to do more things to inherit from `QAbstractCameraController`?
If I run the sample code I posted in Linux the sphere doesn't show and when I close the window the process doesn't stop, I have to kill it.
On Windows this error happens:
Qt3D.Renderer.RHI.Backend: Initializing RHI with DirectX backend Qt3D.Renderer.RHI.Backend: Can't create pipeline, incomplete SwapChain and no default Render Target
If I comment the part that creates the TrackballCameraController this problem doesn't happen.
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Issue Links
- relates to
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PYSIDE-1420 private virtual functions cannot be overriden / implemented
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- Closed
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