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The Lancelot system is an extension of the QTest unit test framework.
Its purpose is to help catch rendering regressions. It facilitates
rendering a suite of test scenes, and comparing the produced output
images with the images produced from a previous rendering run.
Here are instructions for running lancelot tests locally on your PC:
1. Install baselineserver :
- clone git.qt.io:playground/lancelot.git
- check [lancelot]/baselineserver/install/install.txt for installation guide
2. Start lancelot baselineserver and leave it running.
3. Build QtQuick3D with QT_BUILD_TESTS flag ON
4. In Creator Project Settings, set an environmental variable
"QT_LANCELOT_SERVER" to "127.0.0.1".
5. Run tst_Quick3D for the first time and you should see many
"Baseline not found on server. New baseline uploaded." lines.
Baseline PNG images will be stored into path like:
C:\var\www\Other\tst_Quick3D\baselines\testRendering\
6. Apply your changes, fixes etc. and run tst_Quick3D test again.
If rendering output doesn't change to better or worse, you should see
something like:
...
PASS : tst_Quick3D::testRendering(view3d/RenderModeOverlay.qml)
PASS : tst_Quick3D::testRendering(view3d/RenderModeRenderNode.qml)
PASS : tst_Quick3D::testRendering(view3d/RenderModeTexture.qml)
PASS : tst_Quick3D::testRendering(view3d/RenderModeUnderlay.qml)
PASS : tst_Quick3D::cleanupTestCase()
Totals: 80 passed, 0 failed, 0 skipped, 0 blacklisted, 122662ms
********* Finished testing of tst_Quick3D *********
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