[Bf-docboard] chapter_mesh_modelling

[Bart Veldhuizen]

Hi,

while I do agree on the need of high-res images, I don't think we can
expect the Blender Foundation to host a project of the size that this
could become if we include 10-40MB images.. (I'm not only talking about
storage space, but mainly about bandwidth). Maybe we can take another
look at my previous suggestion to store and distribute the original
.blend files in these cases and render them when we need a
high-resolution file?

Bart

On Wed, 2003-01-08 at 20:30, Alex Heizer wrote:
> We'd ideally like something more like 2700x3600 image size, which
> would accomdate full-page images at 300dpi (this includes A4 and
> 8.5x11" American sizes, plus bleeds). 600 and 1200 dpi are needed for
> scanning to get the most detail, but offset printers will only use
> 300dpi at most, and would downscan a 600 or 1200 dpi image. This would
> roughly be equivalent to Stefano's numbers below, maybe a little more
> or less. 
> 
> Of course, I'm thinking these would be the "originals" size, and all
> of the other images would be generated down from there, including FPOs
> for the actual designs of everything. The only time we'd need to
> access these large files is at press time, when the finished product
> gets sent to the printers. Unless you really want to make *all* files
> available for download to everyone at all times. In which case those
> issues of space and bandwidth would have to be worked out. 
> 
> Alex
> 
> 
> Stefano Selleri wrote:
> > > > Depends on how many people would want 10-20 MB versions of each
> > > > graphic in the documentation! :)
> > > > 
> > > 
> > > Is that really the kind of filesize that we're talking about? What would
> > > be a good size (in pixels) for a render if you want to display it on the
> > > size of, say, one third of the page?
> > > 
> > > 
> > 
> > Well, I'd say 600dpi (or even 1200dpi)
> > 
> > a quarter of an A4 is around 10x15cm or 4"x6"
> > 
> > so 600x4x600x6=8.640.000 pixels, at 24 bit per pixel is
> > an (uncompressed) 24.7Mb.... Good lossless compression
> > might do it down to 10Mb, yes.
> > 
> > Quadruple that at 1200dpi ;)
> > 
> > Stefano
> > 
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> > 
> > 
-- 
Bart Veldhuizen <bart@vrotvrot.com>