diff options
Diffstat (limited to 'src/quick/scenegraph/coreapi/qsgrendernode.cpp')
| -rw-r--r-- | src/quick/scenegraph/coreapi/qsgrendernode.cpp | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/src/quick/scenegraph/coreapi/qsgrendernode.cpp b/src/quick/scenegraph/coreapi/qsgrendernode.cpp index ec8e3dda57..403206abc5 100644 --- a/src/quick/scenegraph/coreapi/qsgrendernode.cpp +++ b/src/quick/scenegraph/coreapi/qsgrendernode.cpp @@ -239,13 +239,14 @@ void QSGRenderNode::prepare() Assume nothing about the pipelines and dynamic states bound on the command list/buffer when this function is called. - With some graphics APIs it can be necessary to also connect to the - QQuickWindow::beforeRendering() signal, because that is emitted before - recording the beginning of a renderpass on the command buffer - (vkCmdBeginRenderPass with Vulkan, or starting to encode via - MTLRenderCommandEncoder in case of Metal). Recording copy operations cannot - be done inside render() with such APIs. Rather, do it in the slot connected - (with DirectConnection) to the beforeRendering signal. + With some graphics APIs it can be necessary to reimplement prepare() in + addition, or alternatively connect to the QQuickWindow::beforeRendering() + signal. These are called/emitted before recording the beginning of a + renderpass on the command buffer (vkCmdBeginRenderPass with Vulkan, or + starting to encode via MTLRenderCommandEncoder in case of Metal. Recording + copy operations cannot be done inside render() with such APIs. Rather, do + such operations either in prepare() or the slot connected to + beforeRendering (with DirectConnection). \sa QSGRendererInterface, QQuickWindow::rendererInterface() */ |