4D Graphics
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Let be more specific First of all I dont want to model anything. but I want to know more about 4D systems and it's concepts. Currently I'm working in Medical(Ultra Sound Scanning) Domain. Currently the modelling of 3D Data is doing by another company. I heard that they have experience in modelling 4D systems. that's why I asked about 4D Systems.
SaRath.
_"Before you can learn to recognize what's wrong, you must learn to recognize what's right" - Raymond Chen."
Hello. Right now I am studying Graphics for my exam X| and I came across complex quaternion fractals (uses 4D complex numbers, link http://local.wasp.uwa.edu.au/~pbourke/fractals/quatjulia/). But that is more or less just a mathematical model used in graphics systems for academical means(e.g. 4-dimensional cubic Mandelbrots). Here u can find some packages, which use quaternion models:rolleyes: http://home.att.net/~Paul.N.Lee/Fractal\_Software.html#QuatPkg Aleš.
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Let be more specific First of all I dont want to model anything. but I want to know more about 4D systems and it's concepts. Currently I'm working in Medical(Ultra Sound Scanning) Domain. Currently the modelling of 3D Data is doing by another company. I heard that they have experience in modelling 4D systems. that's why I asked about 4D Systems.
SaRath.
_"Before you can learn to recognize what's wrong, you must learn to recognize what's right" - Raymond Chen."
What do you mean with "4D" it has been used for very different things in the last years (3D+time ==> animation, 3D but better, 3D view + 3 side views, etc.)
We are a big screwed up dysfunctional psychotic happy family - some more screwed up, others more happy, but everybody's psychotic joint venture definition of CP
Tree in C# || Fold With Us! || sighist -
What do you mean with "4D" it has been used for very different things in the last years (3D+time ==> animation, 3D but better, 3D view + 3 side views, etc.)
We are a big screwed up dysfunctional psychotic happy family - some more screwed up, others more happy, but everybody's psychotic joint venture definition of CP
Tree in C# || Fold With Us! || sighisthi peter, i heard about the concept as you said 3D+Time. I was trying to grab more information on the same
SaRath.
_"Where I am from, there is no plan B. So, take advantage of today becuase tomorrow is not promised. - 50 Cent"
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hi peter, i heard about the concept as you said 3D+Time. I was trying to grab more information on the same
SaRath.
_"Where I am from, there is no plan B. So, take advantage of today becuase tomorrow is not promised. - 50 Cent"
3D animation? I've been looking for one a while ago. I'd say there are three approaches to take:
- Do it yourself (OpenGL, DirectX, your choice)
- Commercial packages. All that I found was complex, "If you have to ask for the price you can't afford it" stuff.
- coax a 3D charting control into displaying frames fast enough - this we finally did, but obviously, doesn't work for everything
- OK, number four: coaxing a 3D game engine into what you want to do. The biggest hurdle I think is that game developers code is often not very well designed ("so what - it works!"), so integrating it might be a hassle.
We are a big screwed up dysfunctional psychotic happy family - some more screwed up, others more happy, but everybody's psychotic joint venture definition of CP
Tree in C# || Fold With Us! || sighist -
3D animation? I've been looking for one a while ago. I'd say there are three approaches to take:
- Do it yourself (OpenGL, DirectX, your choice)
- Commercial packages. All that I found was complex, "If you have to ask for the price you can't afford it" stuff.
- coax a 3D charting control into displaying frames fast enough - this we finally did, but obviously, doesn't work for everything
- OK, number four: coaxing a 3D game engine into what you want to do. The biggest hurdle I think is that game developers code is often not very well designed ("so what - it works!"), so integrating it might be a hassle.
We are a big screwed up dysfunctional psychotic happy family - some more screwed up, others more happy, but everybody's psychotic joint venture definition of CP
Tree in C# || Fold With Us! || sighistpeterchen wrote:
3D animation? I've been looking for one a while ago
Check out Open Scene Graph[^] Works at a level above OpenGL (saves you from having to write everything from scratch). Now getting to the level where it is a serious competitor to commercial packages
Graham My signature is not black, just a very, very dark blue
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Anybody can give some useful link to introduction 4D graphic systems?
SaRath.
_"Before you can learn to recognize what's wrong, you must learn to recognize what's right" - Raymond Chen."
Sarath. wrote:
Anybody can give some useful link to introduction 4D graphic systems?
4D graphic systems as mentioned are 3D over time. The concept is primarily used for military, medical and weather. Weather obviously is a concept of changing pressure, temperature, humidity, etc over time. Military is similar, nuclear, bio-weapon, and similar weapons have affects on their environment and people over time, so time is as important as volume of effect. Medical is a little more different. 4D medical involves several different possibilities, the first is "function" if you want to visualize a heart murmor you want to show a 3D scan of either a CAT scan or Magnetic resonance imagery shown in rapid animation. You are showing the abnormal function of an organ over time so that the doctor knows exactly what the problem is. The second part of medical is growth. A persistant problem for a patient results in Mag-res or CAT scan over a period of years without anything visible at a glance, a 4D display of all of the scans over a period of years requires re-allignment and scale of images in order to produce a display over years. This may also involve calibration of color and contrast so as to produce a uniform 4D animation to show changes that may be overlooked in a single scan. (for instance an enlarging liver, a shrinking pancreas, etc.) http://www.vis.uni-stuttgart.de/eng/gallery_old/vis/med/[^] http://spacecom.grc.nasa.gov/icnsconf/docs/2005/12-C1-Wx_Products/C1-09-Klein.pdf[^] -- modified at 14:44 Sunday 6th August, 2006
_________________________ Asu no koto o ieba, tenjo de nezumi ga warau. Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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peterchen wrote:
3D animation? I've been looking for one a while ago
Check out Open Scene Graph[^] Works at a level above OpenGL (saves you from having to write everything from scratch). Now getting to the level where it is a serious competitor to commercial packages
Graham My signature is not black, just a very, very dark blue
Graham Shanks wrote:
Check out Open Scene Graph[^]
We use OpenSceneGraph it is a good package for 3D animation. It isn't exactly designed for 3D volume objects, but it can be forced to do so. :)
_________________________ Asu no koto o ieba, tenjo de nezumi ga warau. Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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Let be more specific First of all I dont want to model anything. but I want to know more about 4D systems and it's concepts. Currently I'm working in Medical(Ultra Sound Scanning) Domain. Currently the modelling of 3D Data is doing by another company. I heard that they have experience in modelling 4D systems. that's why I asked about 4D Systems.
SaRath.
_"Before you can learn to recognize what's wrong, you must learn to recognize what's right" - Raymond Chen."
Sarath. wrote:
Currently I'm working in Medical(Ultra Sound Scanning) Domain.
Cool - you work on the software for an ultrasound machine ?
Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog
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Anybody can give some useful link to introduction 4D graphic systems?
SaRath.
_"Before you can learn to recognize what's wrong, you must learn to recognize what's right" - Raymond Chen."
4D?
When was the last time you poured some wine for you and your sweetie and went out on the front porch to watch the geometry frolic on the lake?--Rebecca M. Riordan, Designing Effective Database Systems
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Sarath. wrote:
Currently I'm working in Medical(Ultra Sound Scanning) Domain.
Cool - you work on the software for an ultrasound machine ?
Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog
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Sarath. wrote:
Anybody can give some useful link to introduction 4D graphic systems?
4D graphic systems as mentioned are 3D over time. The concept is primarily used for military, medical and weather. Weather obviously is a concept of changing pressure, temperature, humidity, etc over time. Military is similar, nuclear, bio-weapon, and similar weapons have affects on their environment and people over time, so time is as important as volume of effect. Medical is a little more different. 4D medical involves several different possibilities, the first is "function" if you want to visualize a heart murmor you want to show a 3D scan of either a CAT scan or Magnetic resonance imagery shown in rapid animation. You are showing the abnormal function of an organ over time so that the doctor knows exactly what the problem is. The second part of medical is growth. A persistant problem for a patient results in Mag-res or CAT scan over a period of years without anything visible at a glance, a 4D display of all of the scans over a period of years requires re-allignment and scale of images in order to produce a display over years. This may also involve calibration of color and contrast so as to produce a uniform 4D animation to show changes that may be overlooked in a single scan. (for instance an enlarging liver, a shrinking pancreas, etc.) http://www.vis.uni-stuttgart.de/eng/gallery_old/vis/med/[^] http://spacecom.grc.nasa.gov/icnsconf/docs/2005/12-C1-Wx_Products/C1-09-Klein.pdf[^] -- modified at 14:44 Sunday 6th August, 2006
_________________________ Asu no koto o ieba, tenjo de nezumi ga warau. Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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So what's the important of time?
SaRath.
_"Where I am from, there is no plan B. So, take advantage of today becuase tomorrow is not promised. - 50 Cent"
Sarath. wrote:
So what's the important of time?
In weather, the wind picks up speed from early morning to late afternoon, then reduces itself, the direction changes as the gulfstream pulses across the states moving high and low pressure systems from place to place. Time is essential, one reading is useless, it is trends and movement that matters. In medical, similarly, body functions change over time. The shrinking or growing of an organ is not visible in a single scan until it exceeds a "normal range" but normal is normal for you, until it exceeds normal for everyone it is not a known problem. Problems can be detected earlier by monitoring changes over time. On the link I sent you there is a ventricle problem shown through 3D graphics over time, time is essential and becoming more so. The problem is that time was not really available until computer hardware caught up with it. The previous method was to overlay multiple shots and look at changes, but in doing so you always cover problems on the bottom scan due to density of imaging media. Computers allow you to display the same capability more consistantly in higher quality. But few people understand how to do volumetric rendering, fewer still know how to do volumetric animations. Thus 4D graphics is the latest buzzword.
_________________________ Asu no koto o ieba, tenjo de nezumi ga warau. Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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3D animation? I've been looking for one a while ago. I'd say there are three approaches to take:
- Do it yourself (OpenGL, DirectX, your choice)
- Commercial packages. All that I found was complex, "If you have to ask for the price you can't afford it" stuff.
- coax a 3D charting control into displaying frames fast enough - this we finally did, but obviously, doesn't work for everything
- OK, number four: coaxing a 3D game engine into what you want to do. The biggest hurdle I think is that game developers code is often not very well designed ("so what - it works!"), so integrating it might be a hassle.
We are a big screwed up dysfunctional psychotic happy family - some more screwed up, others more happy, but everybody's psychotic joint venture definition of CP
Tree in C# || Fold With Us! || sighistDid you try Open Cascade[^]? It is a Open Source 3D Modeling kernel like the ones used in AutoCAD and Pro Engineer.
Arjan