PHP .obj file parser/importer

[ferdymania]

hi there
I am trying to make an importer for .obj 3D model files.
It is for a 3D engine..
I have written something in PHP but i know very little about php.
here is the code i have used:

 
<?php 
$fp = fopen("model.obj", "r" ); 

if(!$fp) 
{ 
    echo "Couldn't open the data file. Try again later."; 
    exit; 
} 
$counter = 0; 
      while(!feof($fp)) 
     { 
        // get a line 
      $line = fgets($fp, 3000); 
      // Split the input string into words as an array 
      $arrWords = explode( ' ', $line );   
      // Count the words in the string 
      $numWords = count( $arrWords );  
              // if first word is v - vertices 
          if($arrWords[0] == "v"){ 
              // write flash code to add a vertex 
              echo "model.addPoint($arrWords[1] , 
                    $arrWords[2] , $arrWords[3] ); "; 
          } 
          // if first word is f - face 
          if($arrWords[0] == "f"){ 
               $counter++; 
              // write flash code to render face 
              echo "model.drawFace(\"face$counter\" ,   
                      [ $arrWords[1] , $arrWords[2], 
                      $arrWords[3] ] ,0xff0000 , $counter);" ; 
          } 
                
     } 
    fclose($fp); 

?>

What it does is take the vertices and parse them into
my method like so:
.

 
model.addPoint(100,200,300); 
// and for the faces 
model.drawFace("faceName",pointList, fillcolor, depth); 

My question is - How can i have it so that any number of vertices
can be added to a face ?. at the moment it is hard coded at 3.

I have more details here.
http://www.video-animation.com/flash3d_002.shtml

tahnks
steve

[Musicman]

Hi,

if($arrWords[0] == "f"){
   $counter++; 
   array_shift($arrWords);
   // write flash code to render face
   echo "model.drawFace(\"face$counter\" ,[" . implode(", ", $arrWords) . "] ,0xff0000 , $counter);\n" ;
}

Is there an example of your 3D thingy to look at?

Musicman

[ferdymania]

hi musicman,
man that is a sweet solution...
thank you very much..
so simple yet so divine...:-)

Here is a 77 poly model

http://www.video-animation.com/games/games_012.htm

and here is a ridiculous 600 poly model... slugsville

http://www.video-animation.com/games/games_011.htm

We will be releasing the 3D engine soon

just a few things needed to work out..

Do you think my way of doing the model importer is the
easiest way.. it seems to me easy.. ?
is there a better way...
once again thanks very much
steve