On 3/18/2015 2:59 PM, Wiktor Niesiobedzki wrote:
1. Do you have any benchmarks, that OpenGL / Vertex Buffer Objects
outperform 2d drawing, when we need only to draw simple lines?
2. Have you tried to profile JOSM (for example - with visualvm) and
confirmed, that it's 2d API, that lacks the performance?
He did some basic benchmarks of line-drawing which he posted to the
josm-dev list:
https://lists.openstreetmap.org/pipermail/josm-dev/2015-March/007275.html
The differences are pretty impressive, going from a 14s draw to a 6s
draw for a big area
and 600ms to 300ms for a small area. There's also reason to believe that
the times
could be brought down to about 10%-20% of the existing 2d implementation.
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