Andrew Poelstra wrote:
I hope to use Cairo to draw the viewport, and make the non-current Groups'
components display as semi-transparent
There is a development using OpenGL. Cairo was tested and proved to slow
for production
work in the viewport. Since I use GL myself and find it's interface
extremely convenient
and the implementations very intelligent compared to other
line-renderers e.g. I opt for that.
P.S.: GL had alpha blending before Cairo was even started...
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