imj  (+1.0)
23/10/04 2:23AM |
Yowch. That's cryptic indeed. Sounds pretty boggling. I do hope someone at the SE Show will take pics and report on suchlike for those of far far away. |
jonix
23/10/04 2:24AM |
Sounds interesting? If not some sort of graphics acceleration, it must be nifty software! |
jonix (+1.0)
23/10/04 2:26AM |
Having re-read it a couple of times, it seems a bit odd that it mentions the ViewFinder specifically. |
hEgelia (+2.0)
23/10/04 3:26AM |
Well...
When referring specifically to drawfile rendering, one may think it uses some new FP routines? The author also mentions briefly "similar improvements" are also seen across the desktop. Is this SIMON perhaps an 'ARM wizard'?
What hidden strengths are yet to be found? |
simo
23/10/04 4:03AM |
Doesn't ArtWorks (and the other CC software) have some sort of fast Drawfile renderer anyway?
I also thought that ViewFinder was especially slow at rendering Drawfiles (can't be bothered to turn my RPC on to check).
As far as SIMON goes, it's not me! |
bucksboy (+1.0)
23/10/04 2:19PM |
In reply to Simo:
where lots of complex rendering is involved, ViewFinder can be up to 7 times slower than VRAM, but that means at worst a 4x speed-up from the SIMON s/ware. It's a pity a similar speed-up can't be applied to VF...
George |
md0u80c9 (+1.0)
23/10/04 7:15PM |
From what I've seen, there's very little difference between a VF and a non-VF RiscPC with respect to drawfile rendering speeds.
The best way to check that would be to use the Drawfile render SWIs to render the same (large) drawfile in BASIC and checking OS_ReadMonotonicTime to see how fast it takes. |
md0u80c9 (+1.0)
23/10/04 7:17PM |
Sorry - to clarify. What I meant by the above is not in the order of 7 times slower. I think that render speeds to vary by a few cs, and I would suspect around 2X worst case scenario.
Not the 'up to 30 times' quoted. |
quatermass (+1.0)
25/10/04 2:10PM |
Obviously the author wanted to quote the slowest plotter of Drawfiles (the ViewFinder) so his speedup code looked extra quick?
If he had quoted the speedup over the Iyonix, would ppl bother talking about it? 
Many years ago the authors of ImageFS showed at a Acorn Show their code for plotting lines to the screen very fast. It could do transparency, sprites, clipping and realtime moving of objects without the usual 'outline' shape on a humble RiscPC.
I was gobsmacked when I saw it.
Was anyone interested in putting this into RISC OS? No.
Are they in this market any more? No. 
|
jogu (+1.0)
25/10/04 8:51PM |
Quatermass, No, but you can see it in Picsel Technology's software on selected PDAs and phones |
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