Now that we can generate all QML type information at build time, we
should also use it.
Change-Id: I647c72bbe38fdb2deb565b75c86a696af3d15b61
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
It has to be written following the new split approach (beforeRendering
for resource setup, beforeRenderPassRecording to issue the actual
underlay draw calls), but it will then work both with and
without QSG_RHI=1.
Change-Id: I9b7b35434aa0caec543cae268064b2684256382d
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Opt in via environment variables:
QSG_RHI=1 -> enable using QRhi instead of GL
QSG_RHI_BACKEND -> set to vulkan, metal, d3d11, gl to override the default
(the default is d3d11 on Windows, metal on Mac, gl elsewhere)
Or force a given rhi backend via the existing
QQuickWindow::setSceneGraphBackend().
Otherwise the default behavior is the same as before, the rhi code path
is never active by default.
-no-opengl builds are supported in the sense that they work and default
to the software backend. However, the rhi code path cannot currently be
used in such builds, even though QRhi from qtbase is fully functional
with Vulkan, D3D, or Metal even when qtbase was configured with
-no-opengl. This cannot be utilized by Quick atm due to OpenGL usage
being all over the place in the sources corresponding to the default
backend, and those host the rhi code path as well. This will be cleaned up
hopefully in Qt 6, with the removal all direct OpenGL usage.
Other env.vars.:
QSG_RHI_DEBUG_LAYER=1 -> enable D3D debug or Vulkan validation layer
(assuming the system is set up for this)
QSG_RHI_SHADEREFFECT_DEBUG=1 -> print stuff from ShaderEffect
QSG_SAMPLES=1,2,4,... -> MSAA sample count (but QSurfaceFormat works too)
QT_D3D_ADAPTER_INDEX=0,1,... -> D3D adapter index
QT_VK_PHYSICAL_DEVICE_INDEX=0,1,... -> Vulkan physical device index
QSG_RHI_UINT32_INDEX=1 -> always use uint index data (both
merged/unmerged, convert when needed - with some rhi backends this is
implicit)
QSG_RENDER_LOOP -> to override the render loop as usual. The default
with RHI is threaded for Metal, threaded for Vulkan on Windows, basic
for Vulkan on Linux and Android (to be checked later), while the existing
rules apply for OpenGL.
Not supported when running with QRhi:
- particles
- compressed atlases (though this is transparent to the apps)
- QSGRenderNode
- QQuickRenderControl
- QQuickFramebufferObject
- certain QQuickWindow functionality that depends directly on OpenGL
- anisotropic filtering for textures
- native text may lack some gamma correction
- QSGEngine applicability unclear
- some QML profiler logs may be incorrect or irrelevant
Change-Id: I7822e99ad79e342e4166275da6e9e66498d76521
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.
Change-Id: I61120571787870c0ed17066afb31779b1e6e30e9
Reviewed-by: Iikka Eklund <iikka.eklund@theqtcompany.com>
Documentation for that fact, and the windowChanged signal.
Fix existing QQuickItem subclasses which didn't call
QQuickItem::itemChange. Examples should rather connect to the
windowChanged() signal.
Change-Id: Ieddcdbe69f849ddb120b64be9c5e0a21393b0ed9
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
I also cleaned up the naming of the other scene graph examples a bit,
so that they sort together in the samples list and have a more obvious
naming scheme.
Task-number: QTBUG-29548
Change-Id: I455eacb02c06058a6d49e12e4f1813ec80b655f6
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>
Ulf Hermann
Laszlo Agocs
Kai Koehne
Jani Heikkinen
Gunnar Sletta
Shawn Rutledge
Gunnar Sletta
Frederik Gladhorn
Kai Koehne