[2d] RGB rendering very slow when RGB bands are missing

wonder-sk / point-cloud-experiments

Just some prototyping for QGIS point clouds implementation

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[2d] RGB rendering very slow when RGB bands are missing #72

Closed wonder-sk closed 3 years ago

wonder-sk commented 3 years ago

And all points get rendered black. This seems to be due to the fact that when RGB attributes are missing, we set some invalid colors in QColor and Qt spits huge amount of warnings, making the rendering very slow.

wonder-sk commented 3 years ago

saberraz commented 3 years ago

And example dataset can be downloaded here: https://environment.data.gov.uk/DefraDataDownload/?Mode=survey

NEDJIMAbelgacem commented 3 years ago

https://github.com/qgis/QGIS/pull/41106