Rotozoom

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Rotozoom

Postby sfreak » Mon Sep 08, 2008 4:09 pm

Hi,

just to let you guys know: I loved the idea of the Rotozoom effect shown in the GLCD section. I implemented it in VHDL for my Spartan-3E Starter Kit.

Take a look: http://de.youtube.com/watch?v=1LaCE-ytnw8

It's generating 800x600@60Hz using the shabby one-resistor-per-color VGA output on the board. On the long term I want to hook it up to some old laptop TFTs, but right now I don't have the equipment to handle the tiny connectors used :?

I still have a little too much delay somewhere in the pixel path and therefore the margin on the left... will have a closer look at it in the coming days. Will add a framebuffer and some color, too. That should make it look even nicer and make it at least theoretically useful :D

Cheers,
Sebastian
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Postby fpga4fun » Tue Sep 09, 2008 6:34 am

Looks great.
You can also rotozoom a bitmap, would be cool.
fpga4fun
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Postby sfreak » Tue Sep 09, 2008 6:39 am

I will try it on bitmaps as soon as I have my Wishbone bus interface working properly. So far I still have some problems accessing my framebuffer...
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