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🧮 Vcpkg update report🍎 MacOS Qt6 buildsDownload MacOS Qt6 builds of this PR for testing. |
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| // Separate thumbnail capture pass to save scaled-down images of the | ||
| // rendered view to aid in debugging (e.g., Tracy profiler frame images). | ||
| Qt3DRender::QRenderCapture *mThumbnailCapture = nullptr; | ||
| Qt3DRender::QTexture2D *mThumbnailTexture = nullptr; |
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these should be gated by #ifdef HAVE_TRACY -- otherwise they may trigger unused member warnings.
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The code that uses these is not gated behind `HAVE_TRACY``, only the call to initialise that part of the frame graph is, so no warnings should be triggered.
I could surround all the new code by ifdefs, but I think it's better like this, to make sure the code doesn't atrophy.
Assisted-By: Claude Opus 4.5
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Description
Tracy is a popular debugging tool for (not only) 3D applications that combines sampled stacktraces with manually added information in a single interface. QGIS already has support for generating traces in Chromium trace event format via
QgsEventTracing, but Tracy is more capable, which should help us both find performance issues and debug intermittent 3D issues.This PR adds support for embedding a Tracy client inside QGIS, gated behind a CMake option
WITH_TRACY. I've re-used the existingQgsEventTracinginterface to forward any zones to Tracy, added new methods to send variables to be plotted, and also forwarded log messages, 3D frame begin events and thumbnails of rendered frames.Since I expect only some developers will use this integration, the build system currently expects Tracy to be already installed as a system package. Another option is to install Tracy via
vcpkg.AI tool usage