Subject:
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Re: Using motion blur to give the illusion of speed
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Newsgroups:
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lugnet.cad
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Date:
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Wed, 17 Nov 1999 10:39:01 GMT
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Viewed:
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370 times
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sparre@sys-323.risoe.dk (Jacob Sparre Andersen) writes:
> Sometimes people make unrealistic motion blur, where they
> give the final image more weight than the preceeding images
> to give both a good picture of the car and give an
> impression of action. Have you tried that?
I haven't tried it, but I'm familiar with the technique. In the first
image below, I have weighted the "centre" images more than the other
ones, to simulate a "slow" shutter, most like an SLR.
The second image below has all the frames weighted equally much,
simulating a fast shutter, like a compact camera.
This effect is hardly visible, though.
> > http://biopc45.uio.no/temp/motion1.jpg
> > http://biopc45.uio.no/temp/motion2.jpg
What you suggested above can be achieved in real life by using a flash
and a long exposure. The flash will capture one frame totally in focus,
while the long exposure will create a "tail" of blurred movement. This
looks very cool, I have done it myself with my camera. But I haven't
tried it with POV-Ray.
> Now you just have to make the car vibrate slightly. :-)
That is a good idea! I though of doing that with my "space ship taking
off animation", but I wanted to shake the camera slighly as the ship
accelerated into warp speed, to simulate shockwaves or something to that
effect. I never got around to doing that, though.
Of course, the engine should vibrate more than the car, and the wheels
even more. Now, how to do that? ;-)
Fredrik
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Message is in Reply To:
 | | Re: Using motion blur to give the illusion of speed
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| Fredrik: (...) Cool. Sometimes people make unrealistic motion blur, where they give the final image more weight than the preceeding images to give both a good picture of the car and give an impression of action. Have you tried that? (...) Both ov (...) (25 years ago, 17-Nov-99, to lugnet.cad)
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