Dear Renaud,
On Fri, 5 Jun 2009, Renaud Aubin wrote:
Asymptote may be a better choice since it supports newer PRC 3D
format, that is much richer in features and has better prospects when
it comes to support and development by Adobe.
Ouch, another new 3D format! This will never end. I bet no valuable Open
Source modeler (i.e. blender) support this one. The fact that asy
supports PRC is good but I have no illusion about the conclusion of the
3d formats' war (just an endless pain for developpers)...
IMHO the major difference is that Adobe Reader is a 3D viewer with quite a
userbase and lots of support resources behind. While the failure of 3D
community to accept U3D as 3D JPEG is deplorable, PRC prospects in Adobe
seem bright - they have bought the format together with the authors, make
noises about submitting it to ISO, released documentation...
From my experience of work with U3D, writing an exporter turned out to be
not that difficult, since for U3D there is VRML-like intermediate text
format, but figuring out what are the limitations of Adobe viewer takes a
lot of time.
I do not remember if that applies to Blender, but googling showed me that
in 2006-2007 people asked questions in lists/forums of 3D software
pieces about 3D PDF output, but neither users were interested, nor
developers excited.
Sincrely, Michail
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