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VectorBob

Faster 3d display

Question

I have noticed that in the process of rotating or moving large complex 3D surfaces (such as DTMs) in VectorWorks that the operation seems to be slow. I know that others may say "Get a faster processor" or "Use more RAM" but I have noticed that other 3D apps are significantly faster. On investigating these applications I became aware of the fact that they use the FFT (fast fourier transformation) algorithm. Can we have the FFT algorithm implemented in VectorWorks to enhance raster response with very large files?

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Hi VectorBob,

I second that

For one project I exported the file back to VW 12, that alone took about 10 minutes. (60 MB of 3D polygons).

I had never heard of this FFT but I like the sound of it.

Gerard

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Hi Gerard

I am a geologist and not a mathematician but I will try to give my understanding of FFT. It is a method of generating a surface using sine and cosine functions. This allows for faster rendering, zooming and rotation. An application I have used that has a very fast FFT algorithm is FracSIS (http://www.fractaltechnologies.com/). Other geophysical companies that have applications that use FFT include Encom Geophysical (http://www.encom.com.au/) recently acquired by Pitney Bowes a few weeks ago and Geosoft (http://www.geosoft.com/). It may be possible that VectorWorks has an FFT algorithm but it is not very efficient especially for large data sets.

Edited by VectorBob

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Hi there, yes the need for speed, I think that would be awesome,

in my opinion the single most important thing really for future VectorWorks editions.

What about file size? I guess that too, I mean a small detailed 3D eg kitchen takes easly 60MB! If one day it will be only max 6mb, I believe editing & any handling would be faster.

Cheers

Edited by amawork

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I would also like to see faster 3d display. It would be nice if I didn't have to wait several seconds for hidden line rendering to re-render a model every time I rotate the view.

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Just got me one of those Spintronic QuBit Quantum Computers ... amazing...as soon as you create one rendered view all the others are simultaneously calculated. And... the screen refresh is instantaneous regardless of complexity ; )

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I think I'd have a hard time remaining coherent with one of those. So, did you pay for it in cash, or trade one of the VI's for it? Either way, will you be needing lunch money this week?

Raymond

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