Re: Drawing 25 000 Shape fast


"MTP" <mtp@xxxxxxxxxxxxxxx> wrote in message
news:e95oal$lkr$1@xxxxxxxxxxxxxxxxxxxxx
Hello,

i have to render 25 000 "points" with each one a specific fill color, and
a specific Shape (java.awt.Shape or customized) in a JPanel.

Drawing every Shape, one by one, is too slow (panning the view ins't
smooth). So i tried to create a BufferedImage for each point, and render
them instead. But it is even slower.

Direct : 3 sec
BI: 4.5 sec

I need to reach 0.1 sec by any mean. Right now i'm thinking to add some
kind of Z-buffer but with aliasing it's pretty hard i think.

I'm not sure why you bring up a Z-buffer for 2D shapes. Are
they sorted by depth? If so, how long does the sort take?


.