def __init__(self, project, filename, parent): self.mutex = QMutex() self.project = project self.filename = filename self.parent = parent self.surface = QOffscreenSurface() self.surface.setFormat(QSurfaceFormat.defaultFormat()) self.surface.create()
def __init__(self, id: str, app: QGuiApplication):
assert self._initialized
self.id = id
self.app = app
self.qml_view = QUrl(os.fspath(get_data_path("webview.qml")))
gl_context = QOpenGLContext()
gl_context.setFormat(QSurfaceFormat.defaultFormat())
gl_context.create()
self.client = Client(id, self.qml_view, gl_context)
self.client.disconnected.connect(self.on_disconnected)
self.client.start()
def create_gl_widget():
# QGLWidget Not currently available in pyside2.
# It has actually been deprecated and we should use
# QtGui.QGLFormat and other related classes instead.
from PyQt5.QtWidgets import QOpenGLWidget
from PyQt5.QtGui import QSurfaceFormat
from PyQt5 import QtOpenGL
QGLFormat = QtOpenGL.QGLFormat
QGL = QtOpenGL.QGL
open_gl_widget = QOpenGLWidget()
fmt = QSurfaceFormat.defaultFormat()
fmt.setSamples(8)
open_gl_widget.setFormat(fmt)
return open_gl_widget
def is_good_opengl_version():
from PyQt5.QtGui import QSurfaceFormat
default_format = QSurfaceFormat.defaultFormat()
return default_format.majorVersion() >= 2
def __init__(self, window):
self.window = window
self.offscreenSurface = QOffscreenSurface()
sformat = QSurfaceFormat.defaultFormat()
sformat.setDepthBufferSize(32)
self.offscreenSurface.setFormat( sformat )
self.offscreenSurface.create()
self.overlayCamera = Qt3DRender.QCamera()
self.overlayCamera.setViewCenter( vec3d() )
self.overlayCamera.setPosition( vec3d( 0, 0, -1 ) )
self.overlayCamera.setUpVector( vec3d( 0, 1, 0 ) )
self.overlayCamera.lens().setOrthographicProjection( -1, 1, -1, 1, -1, 1 )
# Framegraph root #1 -- onscreen rendering
self.surfaceSelector = Qt3DRender.QRenderSurfaceSelector()
self.surfaceSelector.setSurface(window)
self.root = self.surfaceSelector
# Framgraph root #2 -- Used for offscreen renders, not in the graph by default
# During screenshots, offscreenSurfaceSelector becomes the root
# and the branch roots will become a child of renderTargetSelector
self.offscreenSurfaceSelector = Qt3DRender.QRenderSurfaceSelector()
self.offscreenSurfaceSelector.setSurface(self.offscreenSurface)
self.renderTargetSelector = Qt3DRender.QRenderTargetSelector(self.offscreenSurfaceSelector)
self.targetTexture = OffscreenRenderTarget(self.renderTargetSelector)
self.renderTargetSelector.setTarget(self.targetTexture)
self.noDraw2 = Qt3DRender.QNoDraw(self.renderTargetSelector)
# Branch 1: clear buffers
self.clearBuffers = Qt3DRender.QClearBuffers(self.surfaceSelector)
self.clearBuffers.setBuffers(Qt3DRender.QClearBuffers.ColorDepthBuffer)
self.clearBuffers.setClearColor(Qt.white)
self.noDraw = Qt3DRender.QNoDraw(self.clearBuffers)
# Branch 2: main drawing branches using the Athena camera
self.cameraSelector = Qt3DRender.QCameraSelector(self.surfaceSelector)
self.cameraSelector.setCamera(window.camera())
# Branch 2A: solid objects
self.viewport = Qt3DRender.QViewport(self.cameraSelector)
self.viewport.setNormalizedRect(QRectF(0, 0, 1.0, 1.0))
self.qfilt = Qt3DRender.QTechniqueFilter(self.viewport)
self.solidPassFilter = Qt3DRender.QFilterKey(self.qfilt)
self.solidPassFilter.setName('pass')
self.solidPassFilter.setValue('solid')
self.qfilt.addMatch(self.solidPassFilter)
# Branch 2B: transparent objects
self.viewport2 = Qt3DRender.QViewport(self.cameraSelector)
self.viewport2.setNormalizedRect(QRectF(0, 0, 1.0, 1.0))
self.qfilt2 = Qt3DRender.QTechniqueFilter(self.viewport2)
self.transPassFilter = Qt3DRender.QFilterKey(self.qfilt2)
self.transPassFilter.setName('pass')
self.transPassFilter.setValue('transp')
self.qfilt2.addMatch(self.transPassFilter)
# Branch 3: 2D screen overlays
self.cameraSelector2 = Qt3DRender.QCameraSelector(self.surfaceSelector)
self.cameraSelector2.setCamera(self.overlayCamera)
self.viewport3 = Qt3DRender.QViewport(self.cameraSelector2)
self.viewport3.setNormalizedRect(QRectF(0, 0, 1.0, 1.0))
self.qfilt3 = Qt3DRender.QTechniqueFilter(self.viewport3)
self.overlayPassFilter = Qt3DRender.QFilterKey(self.viewport3)
self.overlayPassFilter.setName('pass')
self.overlayPassFilter.setValue('overlay')
self.qfilt3.addMatch(self.overlayPassFilter)
# Branch 4: render capture branch for taking screenshots
self.renderCapture = Qt3DRender.QRenderCapture(self.surfaceSelector)
self.noDraw3 = Qt3DRender.QNoDraw(self.renderCapture)
# Branch roots are the bits that need reparenting when switching between
# offscreen and onscreen rendering
self.branchRoots = [ self.clearBuffers, self.cameraSelector, self.cameraSelector2, self.renderCapture ]