I need to draw a lot of lines with low CPU utilization in a QtQuick app on ARM i.MX8. Neither QML Shapes nor QNanoPainter are fast enough.
What do you recommend? Drawing with QSGGeometry is fast enough, but I need to draw lines with widths greater than one pixel and there's an annoying notch on line joins. My first attempt at rounded end caps ends up as single pixels. I see there are ways to draw circles... but I feel like QSGGeometry is the wrong direction. This is Qt 6.7 on Linux (could be Qt 6.8 in a few months). Surely there is something better? QSGRenderNode and QRhi look promising, but I want to get an opinion before I spend the next few weeks exploring QSGRenderNode. Also, it would be nice to draw text from C++ to keep the interface simple. Thanks, Stan
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