How to make a curve like this.
Instead of using a curve, you can use a broken line too.
What matters is that blue area.
Do you want it for skia or dx11?
Using Skia in VL there could be this approach :
Could be more elegant/optimized but it gives an idea :)
BlueGraph.vl (24.8 KB)
I want it for DX11
curvegraph.v4p (27.4 KB)
thanks