Heres a relatively stupid question:

Darkness · Sep 3, 2002

Once again, im interested in writing a program to convert a file format. Heres the question. How do I read from hex/binary in C?

mirex · Sep 3, 2002

Hmm i think it was discussed before but anyhow, here is some basic code to read few data from file:

Code: [Select]

Code:

#include <stdio.h>                     //library with file utilsvoid main( void )                      //program starts here{  FILE *f;                             //file handle  long l;                              // vv  i define few variables here  vv  float f;  char ch;  char name[20];  f = fopen( "file.dat", "rb" );       //rb = open file for reading in binary mode  if ( f == NULL )                     //if could not open => exit    return;  fread( &l, 4, 1, f );                //lets read one long from file. it is 4 bytes long  fread( name, 1, 20, f );             //now string 20 bytes long  fread( &f, sizeof( float ), 1, f );  //and float which is 4 bytes long  fread( &ch, 1, 1, f );               //and char is 1 byte long  fclose( f );                         //close file}

But before doing something like file converter, you should play around with c trying it ...
Hmm, and btw what file format do you want to convert ?

Darkness · Sep 3, 2002

warcraft 3 unit animation files. thanks, mirex. this will also help me learn the stdio header. i am currently only familiar with ones such as fstream/iostream.

Sephiroth 3D · Sep 3, 2002

Gehh! *Points to the edit button.* USE IT!

Sephiroth 3D

"Macintoshs are to Computers as Spam is to Food." - Greg Higgins

Sephiroth 3D.com
[email protected]

Darkness · Sep 3, 2002

yet ANOTHER edit:

Code: [Select]

Code:

void main()                      //program starts here {   FILE *fr;//file handle   FILE *fw;  unsigned long l, interval_1, interval_2, end, numverts, startpoint;                              // vv  i define few variables here  vv   char ch;  char name[80];   char vrtx[4];  float x, y, z;  startpoint = 0;  fr = fopen( "File.mdx", "rb" );       //rb = open file for reading in binary mode  fw = fopen( "File2.obj", "w" ); //w = write?  if ( fr == NULL )                     //if could not open => exit     return;   fseek( fr, 0L, SEEK_END);  end = ftell (fr);  do {  for (; startpoint < end; startpoint++) { fseek( fr, startpoint, SEEK_SET);  fread( &vrtx, 1, 4, fr );  if((vrtx[0] == 'V') && (vrtx[1] == 'R') && (vrtx[2] == 'T') && (vrtx[3] == 'X')) {   startpoint++; break; if(startpoint > end) {  goto a; }  }  }  fread( &numverts, 4, 1, fr );  for (int counter = 0; counter < numverts; counter++) {  fread( &x, 4, 1, fr );   fread( &y, 4, 1, fr );   fread( &z, 4, 1, fr );     fprintf( fw, "v %f %f %f\n", x, y, z);  }  } while (ftell(fr) < end); a:  fclose( fw );   fclose( fr );                         //close file

there has to be something wrong with one of the loops..... it produces about 10 k or so too many verteces.

Darkness · Sep 4, 2002

ok... maybe a bit less then 10k.... but it repeats the last vert several times:

v 87.254501 -0.272330 5.281180
v 78.815498 -6.367190 11.685000
v 79.081001 0.845960 6.541410
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060
v 73.868202 -0.900610 4.069060

EDIT: The last set of Vertices has 45. there are 46 repeated verticies. 1 at the end of the last set, and 45 of the fake set.

mirex · Sep 4, 2002

What a coincidence! Im working on war3 format too. I saw a request here, I think it was from you darkness, but i could not find that topic.

I've included it into my Conv. At present i can read geometry, objects & texture coords. Also i can read War 3 *.blp textures, both uncompressed & compressed. Right now im working on texturing & materials.

I'll try to upload Conv with these changes ASAP. Probably tomorow.

So lets look at the code:

Code: [Select]

Code:

;   fr = fopen( "File.mdx", "rb" );         // >!< we should move check directly after trying-to-open  if ( fr == NULL )                     //if could not open => exit     return;   // >!< "w" should work too, but "wt" means write in text mode  fw = fopen( "File2.obj", "wt" ); //w = write?   fseek( fr, 0L, SEEK_END);   end = ftell (fr);   do {   // >!< for loops are usually done like this  for ( startpoint = 0; startpoint < end; startpoint++) {    fseek( fr, startpoint, SEEK_SET);        fread( &vrtx, 1, 4, fr );    // >!< easier compare   if ( memcmp( vrtx, "VRTX", 4 ) == 0 ) {     break;      / >!< not sure, but i think that this won't execute, because of break     if(startpoint > end) {       goto a;      }     }   }   fread( &numverts, 4, 1, fr );   for (int counter = 0; counter < numverts; counter++) {    fread( &x, 4, 1, fr );    fread( &y, 4, 1, fr );    fread( &z, 4, 1, fr );       fprintf( fw, "v %f %f %f\n", x, y, z);   }  } while (ftell(fr) < end); a:   fclose( fw );   fclose( fr );                         //close file

Btw, what tool do you use to unpack MPQ's ? I have a few but all of them crash often, of can't unpack compressed files.
-edit-
Here is beta of Conv, it is good only for previewing... and sample

atzn · Sep 4, 2002

Hey good job Mirex.. I used your program to convert my War3 screenies (TGA format) to BMP and it worked... exact resolution as well (crappy Apple Viewer doesn't convert correctly)... But the screenshot became inverted after I convert them. (Easily fixed by using MS Paint

)

Anyway, no more further comments. I'm not really into 3D modelling and stuff yet... so I can't really give too much feedback. The only 'feedback' I can give is that everytime I convert the War3 screenies they end up inverted.... nothing big deal considering that your program is only a Beta version one........

Darkness · Sep 4, 2002

i use MPQ View for extraction, and MPQ2k to add files.

also: have you looked at the animations? i dont quite understand them. They dont seem to refer to any bones.

mirex · Sep 4, 2002

FFTactic_Boy: could you please send me an example files (input and output) that do that ? they should not .... And also an program version number please ... i'll try to fix it asap.

Darkness: anims ... i will work on that later. I've seen some BONE chunk inthere, but understanding it will be hard. First i would like to do that texturing.

Darkness · Sep 4, 2002

for ( startpoint = 0; startpoint < end; startpoint++) {
fseek( fr, startpoint, SEEK_SET);

unfortunately, i cant do this. this part of the code is intended to begin searching after that set of vertecies.

atzn · Sep 4, 2002

FFTactic_Boy: could you please send me an example files (input and output) that do that ? they should not .... And also an program version number please ... i'll try to fix it asap.

Program v0.821
Input File: Targa file (*.tga), <if you capture screenshots in Warcraft3 (i.e. Print Screen while in game) the file generated will be in that Targe format>
Output File: Bitmap file (*.bmp)

Darkness · Sep 5, 2002

ok.... it makes a model now

Code: [Select]

Code:

#include <stdio.h>                     //library with file utils #include <iostream.h>#include <string.h>void main()                      //program starts here {   FILE *fr;//file handle   FILE *fw;  unsigned long end, numverts, startpoint, currentpos, numnorm, numtvert, numtri;                unsigned short a, b, c;  char vrtx[4], norm[4], tvert[4], face[4];  char inname[20];  char outname[20];  cout << "Enter MDX Filename: ";  cin.get(inname, 20);  cin.ignore(80,'\n');  cout << "Enter OBJ Filename: ";  cin.get(outname, 20);  cin.ignore(80,'\n');  float x, y, z;  startpoint = 0;  currentpos = 0;  fr = fopen( inname, "rb" );       //rb = open file for reading in binary mode  if ( fr == NULL )                     //if could not open => exit     return;   fw = fopen( outname, "wt" ); //w = write text mode  fseek( fr, 0L, SEEK_END);  end = ftell (fr);  while (startpoint < end) {  for (; startpoint < end; startpoint++) { fseek( fr, startpoint, SEEK_SET);  fread( &vrtx, 1, 4, fr );  if(memcmp( vrtx, "VRTX", 4 ) == 0) { cout << "Geoset Found!\n"; break; } if(ftell( fr) >= end) {  return; }  }  fread( &numverts, 4, 1, fr );  cout << "Vertices: " << numverts << endl;  for (int counter = 0; counter < numverts; counter++) {  fread( &x, 4, 1, fr );   fread( &y, 4, 1, fr );   fread( &z, 4, 1, fr );   fprintf( fw, "v %f %f %f\n", x, y, z);  }  fseek( fr, 4L, SEEK_CUR);  fread( &numnorm, 4, 1, fr );  cout << "Normals: " << numnorm << endl;  for (counter = 0; counter < numnorm; counter++) {  fread( &x, 4, 1, fr );   fread( &y, 4, 1, fr );   fread( &z, 4, 1, fr );   fprintf( fw, "vn %f %f %f\n", x, y, z);  }    //faces  for (startpoint = ftell(fr); startpoint < end; startpoint++) { fseek( fr, startpoint, SEEK_SET);  fread( &face, 1, 4, fr );  if(memcmp( face, "PVTX", 4 ) == 0) {  fread( &numtri, 4, 1, fr );  cout << "Faces: " << numtri << endl;  cout << ftell(fr) << endl;   for (counter = 0; counter < (numtri / 3); counter++) {    fread( &a, 2, 1, fr );     a++;    fread( &b, 2, 1, fr );     b++;    fread( &c, 2, 1, fr );     c++;    fprintf( fw, "f %i/%i/%i %i/%i/%i %i/%i/%i\n", a, a, a, b, b, b, c, c, c);   }   break; }  }  //end faces    //tvert  for (startpoint = ftell(fr); startpoint < end; startpoint++) { fseek( fr, startpoint, SEEK_SET);  fread( &tvert, 1, 4, fr );  if(memcmp( tvert, "UVBS", 4 ) == 0) {  fread( &numtvert, 4, 1, fr );  cout << "TVerts: " << numtvert << endl;  cout << ftell(fr) << endl;   for (counter = 0; counter < numtvert; counter++) {    fread( &x, 4, 1, fr );     fread( &y, 4, 1, fr );     fprintf( fw, "vt %f %f\n", x, y);   }   break; }  }  //end tvert  startpoint++;   } fclose( fw );   fclose( fr );                         //close file }

the models overall look normal, but some things are off. for example, you can only see shadris' cape from the front, and none of the flat spell-ish planes appear. i know the code is sloppy, but do you have any ideas?

mirex · Sep 5, 2002

Yes. There are more objects in file. Hint: try searching for another VRTX.

Darkness · Sep 5, 2002

all of those are in a giant "while" loop. anyway, i think all of the vertices are there.... but the faces are somehow wrong.

Darkness · Sep 5, 2002

alright. i got it ^^

Goku7 · Sep 6, 2002

Hey, isn't there supposed to be some 3D models of SC units hidden somewhere in WC3? Or was that just screenshots that are hidden in there?

Anyway, if the case is the former, you oughta see if you can get those. They might be of use to modding comminties out there for FPS games.

mirex · Sep 6, 2002

Yes there are a few. I know there is a Hydralisk, Marine & Zergling there. But zergling looks pretty strange. I'll try to get some screenshots
--edit--
So here is that zergling(15kb).
And here is another beta conw which can save too. It can view w3 model with textures, but textures have to be in same dir as model. And it is no good, textures arent shown as should. All objects are mapped with 1st texture in the list. Its a beta you know.

FFTactic_Boy:
Oh and it has that TGA loading fixed too (i think). But for TGA conversion i would recommend other programs, for example PaintShopPro.

atzn · Sep 6, 2002

Yep it worked properly now

I don't have Paint Shop Pro... I have this silly Apple Viewer, which didn't really convert the screenshots properly. At least your small program does.

Thanks.

Darkness · Sep 6, 2002

the zergling has always looked like a modified felhound to me.

and theres a chaotic space orc (name is obviosly from wh 40k)

Heres a relatively stupid question:

Darkness

Guest

mirex

Guest

Darkness

Guest

Sephiroth 3D

Guest

Darkness

Guest

Darkness

Guest

mirex

Guest

atzn

Guest

Darkness

Guest

mirex

Guest

Darkness

Guest

atzn

Guest

Darkness

Guest

mirex

Guest

Darkness

Guest

Darkness

Guest

Goku7

Guest

mirex

Guest

atzn

Guest

Darkness

Guest