Re: Need more ppi in my renders please help!!! 2004-07-09 - By bones3d_mac
Back
I think you're confusing the terminology a bit here. First, do you realize that
an image
rendered at 640x480 at 72ppi is the same exact thing as an image rendered at
640x480
at 300ppi? ppi only matters when you are working in units other than pixels.
Since C3 is
set to only works in pixels at the rendering stage, a ppi setting is pretty
irrelevent.
Instead, try doing some math and increase the size of the output accordingly.
Let'ts say you want to do an image at 8x10 inches at 300dpi, you multiply your
units by
the resolution.
8 x 300 = 2400
10 x 300 = 3000
So you'd tell carrara to render the image at 2400x3000 pixels.
Now, when you first open the image in your image editor, the image will
probably be
something like 33.33" x 41.67" at 72dpi. It looks big at first, but remember,
this is still
2400x3000 pixels... no more, no less. Obviously though, to get the proportions
right for
your needs, you'll need to adjust the image size and resolution. Here's where
it gets
tricky...
First, DO NOT attempt to resize the image with your units set to pixels.
Instead, switch to
inches. Next, look back up at the initial size we needed, 8x10 inches. If we
only try to set
the image size to 8x10 inches itself, the software is going to assume we don't
want to
change the image's native resolution (72dpi). You do not want to do this, since
it will
reduce its size to mere 576x720 pixels. What you want to do, is tell the
software to resize
the image to 8x10 inches and then enter the value 300 into its dpi settings.
Depending on
what software you use, you may not see a change when you do this... and as far
as the
computer is concerned, nothing has changed. Even though we've scaled the image
from a
massive 33.33" x 41.67" to a manageable 8" x 10", the dpi setting we entered
allowed the
image to retain its size of 2400x3000 pixels. The only difference is that we've
told the
computer to treat the dots as though they were much smaller. The image itself
will still
take up as much hard drive space as the larger non-scaled version... because
only the size
of the image has changed, not the data contained within it.
> darthbobvilla wrote:
> >
> > ok here is the deal.
> >
> > in poser you just increase your level of ppi and increase the size of
> > the render and you have something decent.
> >
> > in cs3 when i increase the dpi it only increases the size of the
> > image but not the overall quality of the image.
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