Subject:
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Re: LPub 2.4.8.0 available
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Newsgroups:
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lugnet.cad
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Date:
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Sat, 15 Oct 2005 20:25:02 GMT
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Viewed:
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1623 times
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In lugnet.cad, danny staple <orionrobots@gmail.com> wrote:
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> Its interesting to see the two side by side. It appears that LDGLite
> has better shading, but LDView is smoother on the outlines. Is there
> antialiasing on LDView then?
Well, antialiasing is turned on in both renderers. However, the antialiasing
definitely isn't the same in both. Maybe the LDView one is done with full-scene
antialiasing and the LDGLite one is done with line antialiasing.
It's interesting how you rank the quality on the two. I actually would reverse
that, and say that the edges are smoother on the LDGLite one and the shading is
better on the LDView one. Of course, since I wrote LDView, it stands to reason
that I would find its shading to be asthetically appealing.
There are two major differences in the shading between the two. First of all,
curves are smoothed on the LDView renderings, while you can see some faceting on
the LDGLite rendering. (The curves in this particular model are small enough in
the rendering for this to be less obvious than it might be in some models.) The
second difference is the positioning of the light source. In LDView, the light
source is in exactly the same spot as the virtual camera, so everything pointing
directly at the camera is brightest. In LDGLite the light source seems to be
above and to the left, which is probably a better position for instructions. I
think I'll add a way to move the light in LDView.
One other major difference between the two renderers that will show up in other
models is their handling of transparent pieces. (I don't think this model has
any transparent pieces.) LDView allows transparency to either be done with
stippling (which is what LDGLite, MLCad, and most other LDraw renderers use) or
blending. Blending can look quite a bit better.
--Travis
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Message has 1 Reply:
 | | Re: LPub 2.4.8.0 available
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| (...) That may well explain it. (...) Actually -looking again - LDGLite is smoother, but LDview seems to make less of a mess when axles meet axle holes. It was that I noted really when mentioning smoothness. Looking at the step 48 image from both (...) (19 years ago, 16-Oct-05, to lugnet.cad)
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Message is in Reply To:
| | Re: LPub 2.4.8.0 available
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| Its interesting to see the two side by side. It appears that LDGLite has better shading, but LDView is smoother on the outlines. Is there antialiasing on LDView then? Danny -- (URL) - Build Robots (...) (19 years ago, 15-Oct-05, to lugnet.cad)
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