waashk/20ng huggingface dataset:
In Article <1qg9fc$et9@wampyr.cc.uow.edu.au> "g9134255@wampyr.cc.uow.edu.au (Coronado Emmanuel Abad)" says: >  >  > 	I have seen several ray-traced scenes (from MTV or was it  > RayShade??) with stroked fonts appearing as objects in the image. > The fonts/chars had color, depth and even textures associated with > them.  Now I was wondering, is it possible to do the same in POV?? >  >  > Thanks, >  > Noel >  Yes, there are serveral programs which can convert font files (eq the Borland fonts) to objects consisting of spheres, cones etc.  I've used a program (forgot its name/place, but i can look for it) which converted these Borland fonts to three different raytracers. Vivid, POV and Polyray (which i like more (more flexibel/faster/use of expressions etc). The program has a lot nice features. So if interested give me a mail.
In article <1993Apr19.101747.22169@ugle.unit.no> razor@swix.nvg.unit.no (Runar Jordahl) writes: > >N020BA@tamvm1.tamu.edu wrote: >:     Help!! I need code/package/whatever to take 3-D data and turn it into >: a wireframe surface with hidden lines removed. I'm using a DOS machine, and >: the code can be in ANSI C or C++, ANSI Fortran or Basic. The data I'm using >: forms a rectangular grid. >: is a general interest question. >:    Thank you!!!!!!
In article <C5r9BM.2LH@mach1.wlu.ca> mart4678@mach1.wlu.ca (Phil Martin u) writes: !Chris Herringshaw (tdawson@engin.umich.edu) wrote: !: Concerning the proposed newsgroup split, I personally am not in favor of !: doing this.  I learn an awful lot about all aspects of graphics by reading !: this group, from code to hardware to algorithms.  I just think making 5 !: different groups out of this is a wate, and will only result in a few posts !: a week per group.  I kind of like the convenience of having one big forum !: for discussing all aspects of graphics.  Anyone else feel this way? !: Just curious. ! !Yes. I also like knowing where to go to ask a question without getting !hell for putting it in the wrong newsgroup.  I am also against splitting the group. The traffic will decrease on any given subject but the required net bandwidth will INCREASE because of multiply cross-postings.  I just went through this with another group I continuously read. It is now almost at the point where it is no longer worth reading.  Strongly suggest NOT doing this.
In article <13622@news.duke.edu>, seth@north13.acpub.duke.edu (Seth Wandersman) writes: >  > 	I got the univesa driver available over the net. I thought that finally > my 1-meg oak board would be able to show 680x1024 256 colors. Unfortunately a > program still says that I can't do this. Is it the fault of the program (fractint) > or is there something wrong with my card. > 	univesa- a free driver available over the net that makes many boards > vesa compatible.  WHATS THIS  680x1024 256 color mode? Asking a lot of your hardware ?
In article <1993Apr18.080719.4773@nwnexus.WA.COM>, mscrap@halcyon.com (Marta Lyall) writes: > Organization: "A World of Information at your Fingertips" > Keywords:  >  > In article <628@toontown.columbiasc.ncr.com> craig@toontown.ColumbiaSC.NCR.COM (Craig S. Williamson) writes: >> >>I'm getting ready to buy a multimedia workstation and would like a little >>advice.  I need a graphics card that will do video in and out under windows. >>I was originally thinking of a Targa+ but that doesn't work under Windows. >>What cards should I be looking into? >> >>Thanks, >>Craig >> >>--  >>                                             "To forgive is divine, to be >>-Craig Williamson                              an airhead is human." >> Craig.Williamson@ColumbiaSC.NCR.COM                -Balki Bartokomas >> craig@toontown.ColumbiaSC.NCR.COM (home)                  Perfect Strangers >  >  > Craig, >  > You should still consider the Targa+. I run windows 3.1 on it all the > time at work and it works fine. I think all you need is the right > driver.  >  > Josh West   > email: mscrap@halcyon.com >  AT&T also puts out two new products for windows, Model numbers elude me now, a 15 bit video board with framegrabber and a 16bit with same. Yesterday I was looking at a product at a local Software ETC store. Media Vision makes a 15bit (32,768 color) frame capture board that is stand alone and doesnot use the feature connector on your existing video card. It claims upto 30 fps live capture as well as single frame from either composite NTSC or s-video in and out.
Does anybody have an algorithm for "flattening" out a globe, or any other parametric surface, that is definied parametrically.  That is, I would like to take a sheet of paper and a knife and to be able to calculate how I must cut in the paper so I can fold it to a globe (or any other object).
olson@anchor.esd.sgi.com (Dave Olson) writes: > But surely you don't expect a system you buy now for a five year > period to be constantly upgradable over that entire five year period?  	What's sort of interesting about this whole thread is just how much it has in common with similar threads in groups dealing with other vendor's hardware.  I currently deal basically with hardware from 3 vendors - Apple, DEC, and SGI - and thus tend to monitor the groups about those vendor's hardware.  Currently, it seems like SGI customers are pissed at SGI about dropping support for the Personal Iris, DEC customers are pissed at DEC for dropping MIPS support in favor of the new Alpha boxes, and Apple customers seem to get pissed every time a new Mac is introduced that's faster and cheaper than the one they just bought.  When I used to be a Sun customer years ago, I remember people being pissed at Sun for leaving their 386 and 680x0 customers out in the cold when Sparc came along.  	What's really interesting is that from what I can tell, the MIS folks in the basement with their ES/9000 don't seem to be pissed at IBM. Why?  I have no idea.  Either IBM really does take care of their customers better, or they just have their customers brainwashed better than the smaller vendors do.
I was wondering if anyone knows where I can get more information about the graphics in the WingCommander series, and the RealSpace system they use. I think it's really awesome, and wouldn't mind being able to use similar features in programs.  Thanks in advance.
In article <1993Apr6.011605.909@cis.uab.edu> sloan@cis.uab.edu (Kenneth Sloan) writes: > >Why didn't you create 8 grey-level images, and display them for >1,2,4,8,16,32,64,128... time slices?  By '8 grey level images' you mean 8 items of 1bit images? It does work(!), but it doesn't work if you have more than 1bit in your screen and if the screen intensity is non-linear.  With 2 bit per pixel; there could be 1*c_1 + 4*c_2 timing, this gives 16 levels, but they are linear if screen intensity is linear. With 1*c_1 + 2*c_2 it works, but we have to find the best compinations -- there's 10 levels, but 16 choises; best 10 must be chosen. Different compinations for the same level, varies a bit, but the levels keeps their order.  Readers should verify what I wrote... :-)
Anybody know of an IGES Viewer for DOS/Windows? I need to be able to display  ComputerVision IGES files on a PC running Windows 3.1. Thanks in advance.
In article <C5nF8t.Gsq@news.cso.uiuc.edu> osprey@ux4.cso.uiuc.edu (Lucas Adamski) writes: >In article <1993Apr17.192947.11230@sophia.smith.edu> orourke@sophia.smith.edu (Joseph O'Rourke) writes: >>	A fast polygon routine to do WHAT? >To draw polygons of course.  Its a VGA mode 13h (320x200) game, done in C and >ASM.  I need a faster way to draw concave polygons that the method I have right >now, which is very slow.  What kind of polygons?  Shaded?  Texturemapped?  Hm?  More comes into play with fast routines than just "polygons".  It would be nice to know exaclty what system (VGA is a start, but what processor?) and a few of the specifics of the implementation.  You need to give  more info if you want to get any answers! :P                                    - Ian Romanick                                     Dancing Fool of Epsilon
Hi!  I am in immediate need for details of various graphics compression techniques.  So if you know where I could obtain descriptions of algo- rithms or public-domain source codes for such formats as JPEG, GIF, and fractals, I would be immensely grateful if you could share the info with me.  This is for a project I am contemplating of doing.  Thanks in advance.  Please reply via e-mail if possible.
In article 66319@yuma.ACNS.ColoState.EDU, xz775327@longs.LANCE.ColoState.Edu (Xia Zhao) writes: > > >In article <1993Apr19.131239.11670@aragorn.unibe.ch>, you write: >|> >|> >|> Let's be serious... I'm working on a radiosity package, written in C++. >|> I would like to make it public domain.  I'll announce it in c.g. the minute >|> I finished it. >|> >|> That were the good news. The bad news: It'll take another 2 months (at least) >|> to finish it. > > > Are you using the traditional radiosity method, progressive refinement, or >  something else in your package? >  My package is based on several articles about non-standard radiosity and some unpublished methods.  The main articles are:  -  Cohen, Chen, Wallace, Greenberg :      A Progressive Refinement Approach to fast Radiosity Image Generation      Computer Graphics (SIGGRAPH), V. 22(No. 4), pp 75-84, August 1988  -  Silion, Puech     A General Two-Pass Method Integrating Specular and Diffuse Reflection     Computer Graphics (SIGGRAPH), V23(No. 3), pp335-344, July 1989   > If you need to project patches on the hemi-cube surfaces, what technique are >  you using?  Do you have hardware to facilitate the projection? >  I do not use hemi-cubes. I have no special hardware (SUN SPARCstation).  > >|> >|> In the meantime you may have a look at the file >|>   Radiosity_code.tar.Z >|> located at >|>   compute1.cc.ncsu.edu > > >  What are the guest username and password for this ftp site? >  Use anonymous as username and your e-mail address as password.  > >|> >|> (there are some other locations; have a look at archie to get the nearest) >|> >|> Hope that'll help. >|> >|> Yours >|> >|> Stephan >|> > > >   Thanks, Stephan. > > >    Josephine   Stephan.   ----------------------------------------------------------------------------   Stephan Amann     SIG Computer Graphics, University of Berne, Switzerland            amann@iam.unibe.ch 	   Tel +41 31 65 46 79	   Fax +41 31 65 39 65   Projects: Radiosity, Raytracing, Computer Graphics
Hello all,    I need to make  some torso 3D scans and would like the phone numbers of companies in the midwest that make scans, and the numbers of companies that make the sanners (ie Cyberware). Does anyone have an idea of how much a single scan costs and the best format to save it in? I am not sure on what software platform I will be using it in, probably either Softimage or Wavefront. So I think a spline based format would be best. Please forward the numbers to me personally as I am having problems accessing USENET lately. Thanks in advance!
Hello netters  Sorry, I don't know if this is the right way of doing this kind of thing, probably should be a CFV, but since I don't have tha ability to create a  news group myself, I just want to start the discussion.   I enjoy reading c.g very much, but I often find it difficult to sort out what I'm interested in. Everything from screen-drivers, graphics cards, graphics programming and graphics programs are discused here. What I'd like is a  comp.graphics.programmer news group. What do you other think.
I am looking for software that reads a plot in PCX or other format and  converts it into x,y coordinate.
In article <gradyC6D7Ep.AwE@netcom.com> grady@netcom.com (1016/2EF221) writes: >Where did the hacker ethic go? > >We hackers of the 70's and 80' are now comfortably employed >and supporting families.  The next generation takes >the radical lead now.  Don't look for radicalism among us >old ones; we're gone...  And guess who's here in your place.  Please finger xyzzy@gnu.ai.mit.edu for information, or if you are a mail/news only site, mail xyzzy@gnu.ai.mit.edu with the subject line "SEND FINGER".
In article <1qkgbuINNs9n@shelley.u.washington.edu>,  bolson@carson.u.washington.edu (Edward Bolson) writes:   |> Given 4 points (non coplanar), how does one find the sphere, that is, |> center and radius, exactly fitting those points?    Finding the circumcenter of a tetrahedron is discussed on page 33 in  CONTOURING: A guide to the analysis and display of spatial data, by Dave Watson, Pergamon Press,  1992, ISBN 0 08 040286 0, 321p.  Each pair of tetrahedral vertices define a plane which is a  perpendicular bisector of the line between that pair.  Express each plane in the form Ax + By + Cz = D and solve the set of simultaneous equations from any three of those planes that have a vertex in common (all vertices are used).   The solution is the circumcenter.
The real problem w/ the Stealth from what I've heard is that Diamond won't tell anyone how to program their proprietary clock stuff, so X under Linux and 386BSD won't run....
In article <1qg9fc$et9@wampyr.cc.uow.edu.au>, g9134255@wampyr.cc.uow.edu.au (Coronado Emmanuel Abad) writes: |>  |>  |> 	I have seen several ray-traced scenes (from MTV or was it  |> RayShade??) with stroked fonts appearing as objects in the image. |> The fonts/chars had color, depth and even textures associated with |> them.  Now I was wondering, is it possible to do the same in POV?? |>   Hi Noel,  I've made some attempts to write a converter that reads Adobe Type 1 fonts, triangulates them, bevelizes them and extrudes them to result in a generic 3d object which could be used with PoV f.i.  The problem I'm currently stuck on is that theres no algorithm which triangulates any arbitrary polygonal shape. Delaunay seems to be limited to convex hulls. Constrained delaunay may be okay, but I have no code example of how to do it.  Another way to do the bartman may be  - TGA2POV - A selfmade variation of this, using heightfields.    Create a b/w picture (BIG) of the text you need, f.i. using a PostScript   previewer. Then, use this as a heightfield. If it is white on black,   the heightfield is exactly the images white parts (it's still open   on the backside). To close it, mirror it and compound it with the original.  Example:  object {    union {       height_field { gif "abp2.gif" }       height_field { gif "abp2.gif" scale <1 -1 1>}    }    texture {       Glass    }    translate <-0.5 0 -0.5>      //center    rotate <-90 0 0>             // rotate upwards    scale  <10 5 100>            // scale bigger and thicker    translate <0 2 0>            // final placement }   abp2.gif is a GIF of arbitrary size containing "ABP" black on white in Times-Roman 256 points.
Hi,   I need to know if there is a 256 color graphics mode that allows multiple pages.  I want something like mode 0x10 (640x350x16 2 pages).  I have been experimenting with graphics by calling the BIOS with borland turbo c.  I feel like I am flying blind in this area, and could use all the help that you can give.    Thanks, 	Ivan......
In article <C5tK4u.C6t@cs.columbia.edu>, ykim@cs.columbia.edu (Yong Su Kim) writes: |>  |> I am working on a program to display 3d wireframe models with the user |> being able to arbitrarily change any of the viewing parameters.  Also, |> the wireframe objects are also going to have dynamic attributes so |> that they can move around while the user is "exploring" the wireframe |> world.  	Why don't you consider PHIGS in X or PEX lib?
Jennifer Lynn Urso <ju23+@andrew.cmu.edu> writes:  >>    Also if anyone else is doing what I am planning I would be happy to hear >>from you with any advice you might provide as to the computer system you >>use and/or any peripherals or software.  It seemed the Quadra 800 would be >>my best bet to modify photographic images.  I am planning on buying a Quadra >>800 with 32Megs of RAM, a 510Meg Hard Drive, a 1200 dpi scanner, 17" Sony  >>monitor and a 88Meg cartridge drive and perhaps a CD ROM.  I am new to >>computers and any advice would be great. >  >well, i have lots of experience with scanning in images and altering >them.  as for changing them back into negatives, is that really possible? >scanning and altering is no big deal. i don't know what types of >features you have in your version of photoshop.  but the one i use >(which, incidentally is on a quadra) has gallery effects and all types >of other neato stuff. >i'm just wondering why you would want to put your images back into >negatives, because once you print the image out-that's your print. >do you know what exactly your aim is in all of this?  like, are you >doing this just for fun, for a business, to gain more computer >knowledge, for a project you're working on.... >otherwise, i guess i don't know if i'd be helping or not by posting info >on scanning and stuff. >ok?  cool. >seeya  >jennifer urso:  the oh-so bitter woman of utter blahness(but cheerful >undertones)  It is for a business and the end product has to be a photograph. I take damaged black and whites, usually old, some very, and repair them by hand at present.  I would like to do this by using a computer. I am just trying to find a vendor who can convert my computer stored images to negatives or thermal print.  The customer will want his/her copy as much as possible like a brand new original photgraph.   -- David
Hi, 	would someone please email the new AVI file 	format.  I'm sure that many people would  like to know what it is exactly.  Thank you   Mark Gregory Lecturer m.gregory@rmit.edu.au PH(03)6603243 FAX(03)6621060 Royal Melbourne Institute of Technology, Department of Communication and Electronic Engineering, P.O. Box 2476V, Melbourne, Victoria, 3001. AUSTRALIA.
I finally got a 24 bit viewer for my POVRAY generated .TGA files.  It was written in C by Sean Malloy and he kindly sent me a copy.  He wrote it for the same purpose, to view .TGA files using his SpeedStar 24.  It ONLY works with the SpeedStar 24 and I cannot send copies since it is not my program.  I believe the author may release a version at a future time when the program is more developed.   He may or may not comment on this, as he pleases.  Thanks to all who were helpful.  Regards,
Hi! Everyone,  Because no one has touched the problem I posted last week, I guess my question was not so clear. Now I'd like to describe it in detail:  The offset of an ellipse is the locus of the center of a circle which rolls on the ellipse. In other words, the distance between the ellipse and its offset is same everywhere.  This problem comes from the geometric measurement when a probe is used. The tip of the probe is a ball and the computer just outputs the positions of the ball's center. Is the offset of an ellipse still an ellipse? The answer is no! Ironically, DMIS - an American Indutrial Standard says it is ellipse. So almost all the software which was implemented on the base of DMIS was wrong. The software was also sold internationaly. Imagine, how many people have or will suffer from this bug!!! How many qualified parts with ellipse were/will be discarded? And most importantly, how many defective parts with ellipse are/will be used?  I was employed as a consultant by a company in Los Angeles last year to specially solve this problem. I spent two months on analysis of this problem and six months on programming. Now my solution (nonlinear) is not ideal because I can only reconstruct an ellipse from its entire or half offset. It is very difficult to find the original ellipse from a quarter or a segment of its offset because the method I used is not analytical. I am now wondering if I didn't touch the base and make things complicated. Please give me a hint.  I know you may argue this is not a CG problem. You are right, it is not. However, so many people involved in the problem "sphere from 4 poits". Why not an ellipse? And why not its offset?  Please post here and let the others share our interests  (I got several emails from our netters, they said they need the summary of the answers).
>hed@cats.ucsc.edu (Magic Fingers) writes: >>In article <1993May13.011926.4728@exucom.com> cyberman@exucom.com (Stephen R. Phillips) writes: >>If it takes making it an alt group, then why not?  I've been following >>this thread for, what has it been, two months now? >The alt.* hierarchie is created for 2 purposes: >1. For groups which do not fit under the comp.* or other 'official' >  hierarchies >2. For the fast creation of hot new newsgroups like alt.gulf.war >Because there is no voting process or any other control facilities, >sites are free to decide not to carry (some of) the alt groups. >Therefore, it is (I think) desirable to try to create comp.graphics. >{raytrace, rendering or whatever} and not an alt-group > >Wouter  Very good point.  Is there someone out there that is working on this? I'd offer my time to help manage/do it all myself but yaw'll are not going to hear from me over the summer.  I'm not trying to be pushy, and there is being progress made (re: pov mailing list).  -hed
Has anyone successfully converted Interleaf graphics to CGM, or even heard of it being done????   We'd love to hear about it.  -Mike McConnell
A while back someone had several equations which could be used for changing 3 f iltered grey scale images into one true color image.  This is possible because it's the same theory used by most color scanners.  I am not looking for the obv ious solution which is to buy a color scanner but what I do need is those equat ions becasue I am starting to write software which will automate the conversion  process.  I would really appreciate it if someone would repost the 3 equations /3 unknowns.   Thanks for the help!!!
Hi,  I'm looking for RGB (cube) --> HLS (double hexcone) --> HSV (cylinder)  conversion routines. I have RGB <--> HSV, but miss the HLS <--> RGB/HSV.  PLEASE E-MAIL ME DIRECTLY, AS I DO NOT GET THIS NEWSGROUP AT MY SITE --------------------------------------------------------------------  Any and all help wil be greatly appreciated. Gert.  --
In article <C5Juyz.ALy@murdoch.acc.Virginia.EDU> rws2v@uvacs.cs.Virginia.EDU (Richard Stoakley) writes: >	We need a good concave ->convex polygon conversion routine. >I've tried a couple without much luck.  Please E-mail responses and I >will post a summary of any replies.  Thank you. > >Richard Stoakley >rws2v@uvacs.cs.Virginia.EDU
I heard a friend who just return from NAB from Las Vegas confirm that RealSoft will be releasing a Windows version of REAL-3D 2.0 this summer.  He was told that the rendering speed on the DX50 isn't as fast as A4000.  However, he was also told that they are switching from Microsoft C++ to Watcom to gain more speed.  For people who is looking for a powerful 3D animation software for PC.  The wait shouldn't be too long.  Real 3D 2.0 is absolutely the most powerful and flexible 3D package out there that sells for less than $1000.
Concerning the proposed newsgroup split, I personally am not in favor of doing this.  I learn an awful lot about all aspects of graphics by reading this group, from code to hardware to algorithms.  I just think making 5 different groups out of this is a wate, and will only result in a few posts a week per group.  I kind of like the convenience of having one big forum for discussing all aspects of graphics.  Anyone else feel this way? Just curious.
In article <C4IHqM.7v3@mentor.cc.purdue.edu>, ab@nova.cc.purdue.edu (Allen B) writes: |> One more time: is there any >free< OCR software out there? |> |> I ask this question periodically and haven't found anything.  This is |> the last time.  If I don't find anything, I'm going to write some |> myself. |>  |> Post here or email me if you have any leads or suggestions, else just |> sit back and wait for me. :) |>  |> ab  I'm not sure if this is free or shareware, but you can try to look to wsmrsimtel20.army.mil, directory PD1:<MSDOS.DESKPUB>  file OCR104.ZIP . From the file SIMIBM.LST : OCR104.ZIP    B   93310  910424  Optical character recognition for scanners.  Hope this helps.