Re: Bug with FxParameterRetrievalAPI in Motion
Re: Bug with FxParameterRetrievalAPI in Motion
- Subject: Re: Bug with FxParameterRetrievalAPI in Motion
- From: Peter Litwinowicz <email@hidden>
- Date: Mon, 23 Jul 2007 09:39:33 -0700
- Thread-topic: Bug with FxParameterRetrievalAPI in Motion
Title: Re: Bug with FxParameterRetrievalAPI in Motion
Pete,
Please file a bug if you feel this is incorrect behavior. We do this with textures because it means that no data has to be sent from the CPU to the GPU if the texture is already on the GPU and you can simply adjust the texture coordinates so that it matches your other inputs. This saves bus bandwidth and time as nothing is sent over the bus and no rescaling needs to be done.
We should probably not do the same thing for bitmaps, since it will mean you'll have to resample something in software, which is usually expensive. I'll see if there was any other reason we were doing this with bitmaps and let you know.
Darrin
I filed a bug last week.
And whatever the reasons you come up with, when you work at 50% resolution, everything should be at 50% resolution. You can explain away all you want :-).
You say no rescaling has to be done, but the inputImage passed to renderOUtput gets returned to me at 50% resolution and the outputImage is requested at 50% resolution, so why are you one this with what you pass to renderOuput and not with what’s returned by FxTemporalImageAPI::getBitmap (my subject says FxParameterRetrievalAPI and I’m incorrect there... It should be FxTemporalImageAPI). Motion is being inconsistent. If you say you want to save bus bandwidth and do no scaling, then why isn’t inputImage given to –renderOuput sent at 100% resolution (not that I’m asking that you do that!)
AND, two other developers chimed in with this being a bug. So I’m not the only one ;-)
Pete
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