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transforming bitmaps into 3D models

Started by December 20, 2001 02:14 AM
4 comments, last by joey81 23 years, 2 months ago
Hi, I have a bitmap which is 44 by 55 pixels. The bitmaps that we see are in 2D format(flat, no depth). I need to display this bitmap into a 3D model format... eg. a bitmap picture of a face displayed as a 3D image. What are the steps involved in doing so? From what i know, i need to create an array to store these pixels and load them out again to display them in 3D format. But how??? I''m new to this topic and would gladly appreciate any help. Tutorials are also welcome... Thanks.....
do you mean texturing a quad with the bmp or something like that?

or do you want to make the bitmaps image 3d, like, if it had a picture of a car, you want it to display a 3d car?? if thats what you want, then its impossible.
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Samith, it''s not impossible. They have programs that do that for medical use like in endoscopes. It''s not impossible, only really, really hard.
Read nehe''s tut on landscapes....
If I understand you correctly you need the technique called image-based rendering. But! It needs depth values also and it is very slow on the nowadays machines. But search on the theme, there will be a lot of docs about it. (www.google.com and search "image-based rendering")
And as others said it is a very hard theme, scientists are working on this and they can''t solve it totally...


-- tSG --
-- tSG --
actually, it is impossible to take a single picture and create a complete 3d model from it. ALL implemntations require multiple pictures to have any accuarcy at all, and some require human assitance for figuring out depth.

landscape systems which use height map rendering are a very exact case for use of creating 3d images. you probally will get much better results actually modeling the face you need yourself. you can still use the picture as a texture with some work done to it.

as to medical systems, its more likly they are using a form of 3d scanning which constructs a volumetric scene. but i fail to see why it would be used normally, since all an endoscope is just a camera on a line set into the body. it would make more sense to just use the video and realtime abilities of the camera, besides being much cheaper.

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