On Sunday 09 August 2009, Martin Renold wrote: > New pixel formats: > > As it is now, we need to use different attributes to save the "legacy" and > the new file format side-by-side in a compatible way. For example: > > <layer src="data/layer001.png" src_16bit="data/layer001_16bit.png"/> > and also for fallbacks: > <cache src="caches/checkerboard.png" src_float='caches/checkerboard.dat'/> > > Essentially, the specification needs to be updated to state that src=... > attributes can only point to 8bpc PNG images, and all other formats need > other attributes. Ugly? Acceptable? Alternatives? I think it would work with fallback <layer src="data/layer001_16bit.png"> <fallback src="data/layer001.png" /> </layer>
> Layer modes: > > Would a compositing mode other than OVER be implemented as an <effect> in > OpenRaster? Or would the mode be part of the <layer> tag, which then can > also have a fallback? If so, can a <stack> tag also have a compositing > mode? I am more for the <layer> tag. And defaulting to OVER. > Filter/Renderer variants: > > Implementation might like to have a way to decide whether they can render > something without fallback. This can be solved with version=... > attributes. I don't follow you, you mean different version of the filter ? -- Cyrille Berger
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