OBJ2Map [mesh-wise]

[serthy]

Hey

i wrote this simple thing to convert *.obj to *.map!

THIS IS USING ONLY MESHES!

it is like the VMF2Map-converter, but in instead of brushes, it is using meshes

<?php
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

	ini_set( "memory_limit" , "500M" );
	
	$path = "X:\\MODDING\\COD2\\map_source\\";		//output path
	$name = "objfile";					//input filename
	$scale = 1;						//output scale
	$snapToGrid = false;					//this may distort the output!
	
	echo "Converting $name.obj!\n";

	$objString = file_get_contents( $name . ".obj" );
	$obj = parse_OBJ( $objString );
	$map = export_OBJ2MAP( $obj , $scale , $snapToGrid );
	
	file_put_contents( "$path$name.map" , $map );
	
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

function parse_OBJ( $mapSourceString )
{
	$obj = array();
	$obj["faces"] = array();
	$obj["verts"] = array();
			
	$lines = explode( "\n" , $mapSourceString );
	
	foreach( $lines as $line )
	{
		$temp = explode( " " , $line );
		$val = $temp[0];
		
		switch( $val )
		{
			case "#":			//skip the unwanted elements like
			case "usemtl":			//bezier curves, splines, groubs, objects,
			case "mtllib":			//materials, vertexnormals, vertextestures etc
			case "s":			//to stay as easy as possible
			case "vt":
			case "vn":
			case "o":
				break;
								
			case "v":			//plain vertex: v xCoord yCoord zCoord weight
							//strip only the 3 worldcoords
							//keep the order to get the globalVertexIndex later on!
							//this code ignores the lokalVertexIndex
				$obj["verts"][] = array_slice( $temp , 1 , 3 );
								
				break;
				
			case "f":			//plain face: f globalVertIndex1/globalVertParamIndex1/globalVertNormalIndex1
							//this discribes 1 vertex with the globalVertexIndex of the siad vertex
							//if the globalVertexIndex is negative it will use the lokalVertexIndex! (not used here)
				$temp = array_slice( $temp , 1 , 3 );
				
				//strip the elements and leave the globalVertexIndex
				foreach( $temp as $key => $val )
				{
					$val = explode( "/" , $val );
					$temp[$key] = $val[0];
				}
				
				$obj["faces"][] = $temp;
				
				break;
		}
	}
	
	return $obj;
}

function export_OBJ2MAP( $obj , $scale = 1 , $snapToGrid = false )
{
	$map = "";
	$map = "iwmap 4\n";
	$map .= "{\n";
	$map .= "\t\"classname\" \"worldspawn\"\n";
	
	foreach( $obj["faces"] as $face )
	{
		$vertStrArray = array();
				
		foreach( $face as $vertIndex )
		{
			$vertIndex = (int)$vertIndex - 1;
			
			if( $vertIndex < 0 || !isset( $obj["verts"][$vertIndex] ) )
				break;
		
			$vert = $obj["verts"][$vertIndex];
			
			$vertStr = "v ";
			
			foreach( $vert as $coord )
			{
				$coord = (float)$coord * $scale;
				
				if( $snapToGrid )
					$coord = round( $coord );
					
				$vertStr .= $coord;
				$vertStr .= " ";
			}

			$vertStr .= "t -160 -160 -0.625 0.625\n";

			$vertStrArray[] = $vertStr;
		}

		if( count( $vertStrArray ) != 3 )		//this code handles only trinagles!
			continue;				//so your *.obj file should consists out of them!
		
		$faceStr = "";
		$faceStr .= "\t{\n";
		$faceStr .= "\t\tmesh\n";
		$faceStr .= "\t\t{\n";
		$faceStr .= "\t\t\tcaulk\n";
		$faceStr .= "\t\t\tlightmap_grey\n";
		$faceStr .= "\t\t\t2 2 16 8\n";
		$faceStr .= "\t\t\t(\n";
		$faceStr .= "\t\t\t\t$vertStrArray[0]";		//play with the indexes here
		$faceStr .= "\t\t\t\t$vertStrArray[1]";		//there must be 3 uniques (0,1,2)
		$faceStr .= "\t\t\t)\n";
		$faceStr .= "\t\t\t(\n";
		$faceStr .= "\t\t\t\t$vertStrArray[2]";		//and one duplicate > quad to triangle!
		$faceStr .= "\t\t\t\t$vertStrArray[2]";		//this is the best for me right now
		$faceStr .= "\t\t\t)\n";
		$faceStr .= "\t\t}\n";
		$faceStr .= "\t}\n";
			
		$map .= $faceStr;
	}
	
	$map .= "}\n";
	
	return $map;
}

usage: VMF2Map


cheers Serthy

[kung foo man]

Hey, nice work

Just tried it, but from inside its invisible. Is it only for decoration?

[serthy]

in Radiant:
select all [i]
flip normals [shift + i]

the texturing is not working at all, also in fact that this is using triangles (and the *.map requires at least 2x2 vertices, so the fourth is just a copie of another) there is no way (for me right now) to point out the normals, textures, lightmaps. you cant also connect every plane to the next, since *.map uses 2 types of vertices (red & pink ones)

to flip the normals you have to switch the Y and Z coordinate for every vertex of that mesh (in *.map)

here is the *.OBJ file format reference.. Attachment 92 if someone is interested in it lol

[kung foo man]

Hey, here is what i needed to do also:

Select all: I
Click some Texture
Open Surface inspector (press S) then [Fit]-button
Selection -> Rotate -> Rotate Y
Selection -> Scale 100,100,100

Then it looks usable

[serthy]

fixed rotation
added paths

		<?php
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

    ini_set( "memory_limit" , "500M" );
    
    $name = "testmap";                            //input filename
    $scale = 35;                                //output scale
    $snapToGrid = true;                        //this may distort the output!
    $texture = "case";                        //default texture
    $version = "cod2";                        //game version

    switch( $version )
    {
        case "cod5":
            $path = "G:\\Modding\\spiele\\cod5\\map_source\\SERTHYWARS\\";
            break;
        case "cod2":
            $path = "X:\\MODDING\\COD2\\map_source\\";
            break;
        default:
            $path = "X:\\MODDING\\COD2\\map_source\\";
            break;
    }

    echo "Converting $name.obj!\n";

    $objString = file_get_contents( $name . ".obj" );
    $obj = parse_OBJ( $objString );
    $map = export_OBJ2MAP( $obj , $scale , $snapToGrid , $texture , $version );
    
    file_put_contents( "$path$name.map" , $map );
    
    echo "Converting done!\n";

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

function parse_OBJ( $mapSourceString )
{
    $obj = array();
    $obj["faces"] = array();
    $obj["verts"] = array();
            
    $lines = explode( "\n" , $mapSourceString );
    
    foreach( $lines as $line )
    {
        $temp = explode( " " , $line );
        $val = $temp[0];
        
        switch( $val )
        {
            case "#":            //skip the unwanted elements like
            case "usemtl":        //bezier curves, splines, groubs, objects,
            case "mtllib":        //materials, vertexnormals, vertextestures etc
            case "s":            //to stay as easy as possible
            case "vt":
            case "vn":
            case "o":
                break;
                                
            case "v":            //plain vertex: v xCoord yCoord zCoord weight
                            //strip only the 3 worldcoords
                            //keep the order to get the globalVertexIndex later on!
                            //this code ignores the lokalVertexIndex
                $obj["verts"][] = array_slice( $temp , 1 , 3 );
                                
                break;
                
            case "f":            //plain face: f globalVertIndex1/globalVertParamIndex1/globalVertNormalIndex1
                            //this discribes 1 vertex with the globalVertexIndex of the siad vertex
                            //if the globalVertexIndex is negative it will use the lokalVertexIndex! (not used here)
                $temp = array_slice( $temp , 1 , 3 );
                
                //strip the elements and leave the globalVertexIndex
                foreach( $temp as $key => $val )
                {
                    $val = explode( "/" , $val );
                    $temp[$key] = $val[0];
                }
                
                $obj["faces"][] = $temp;
                
                break;
        }
    }
    
    return $obj;
}

function export_OBJ2MAP( $obj , $scale = 1 , $snapToGrid = true , $texture = "case" , $version = "cod2" )
{
    $map = "";
    $map .= "iwmap 4\n";

    if( $version == "cod5" || $version == "cod4" )
    {
        $map .= "\"000_Global\" flags  active\n";
        $map .= "\"The Map\" flags\n";
    }

    $map .= "{\n";
    $map .= "\t\"classname\" \"worldspawn\"\n";
    
    foreach( $obj["faces"] as $face )
    {
        $vertStrArray = array();
                
        foreach( $face as $vertIndex )
        {
            $vertIndex = (int)$vertIndex - 1;
            
            if( $vertIndex < 0 || !isset( $obj["verts"][$vertIndex] ) || count( $obj["verts"][$vertIndex] ) != 3 )
                break;
        
            $vert = $obj["verts"][$vertIndex];
            
            for( $c = 0 ; $c < 3 ; $c++ )
            {
                $coord = (float)$vert[$c] * $scale;

                if( $snapToGrid )
                    $coord = round( $coord );

                $vert[$c] = $coord;
            }

            $vertStrArray[] = "v $vert[0] $vert[2] $vert[1] t -1600 -1600 -0.625 0.625\n";
        }

        if( count( $vertStrArray ) != 3 )            //this code handles only trinagles!
            continue;                        //so your *.obj file should consists out of them!
        
        $faceStr = "";
        $faceStr .= "\t{\n";
        $faceStr .= "\t\tmesh\n";
        $faceStr .= "\t\t{\n";
        $faceStr .= "\t\t\ttoolFlags splitGeo;\n";
        $faceStr .= "\t\t\t$texture\n";
        $faceStr .= "\t\t\tlightmap_gray\n";
        $faceStr .= "\t\t\t2 2 16 8\n";
        $faceStr .= "\t\t\t(\n";
        $faceStr .= "\t\t\t\t$vertStrArray[0]";        //play with the indexes here
        $faceStr .= "\t\t\t\t$vertStrArray[0]";        //there must be 3 uniques (0,1,2)
        $faceStr .= "\t\t\t)\n";
        $faceStr .= "\t\t\t(\n";
        $faceStr .= "\t\t\t\t$vertStrArray[1]";        //and one duplicate > quad to triangle!
        $faceStr .= "\t\t\t\t$vertStrArray[2]";        //this is the best for me right now
        $faceStr .= "\t\t\t)\n";
        $faceStr .= "\t\t}\n";
        $faceStr .= "\t}\n";
            
        $map .= $faceStr;
    }
    
    $map .= "}\n";
    
    return $map;
}	

to get the best & rly fast texture results:
set $version to cod5
convert
open it in codwawRadiant
select all [i]
invert meshes [shift+i]
hit a texture
bring up the surface inspector [s]
hit [LMAP]

[kung foo man]

Hm, whats the difference to cod2-radiant?

[serthy]

1. waw CAP
2. cod2 LMAP
3. waw FIT
4. waw LMAP (best results)
5. waw NATURAL

[Samantha Carter]

Hello, with the help of a ChatGPT 3.5, I fixed Serthy's OBJ2Map so now it uses the material names of your meshes from OBJ.

<?php
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

    ini_set( "memory_limit" , "500M" );
    
    $name = "my_obj";                            //input filename
    $scale = 1;                                //output scale
    $snapToGrid = false;                        //this may distort the output!
    $texture = "case";                        //default texture
    $version = "cod2";                        //game version

    switch( $version )
    {
        case "cod5":
            $path = "D:/";
            break;
        case "cod2":
            $path = "D:/";
            break;
        default:
            $path = "D:/";
            break;
    }

    echo "Converting $name.obj!\n";

    $objString = file_get_contents( $name . ".obj" );
    $obj = parse_OBJ( $objString );
    $map = export_OBJ2MAP( $obj , $scale , $snapToGrid , $texture , $version );
    
    file_put_contents( "$path$name.map" , $map );
    
    echo "Converting done!\n";

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

function parse_OBJ($mapSourceString)
{
    $obj = array();
    $obj["faces"] = array();
    $obj["verts"] = array();
    $obj["materials"] = array(); // Store materials as associative array
            
    $lines = explode("\n", $mapSourceString);
    
    $currentMaterial = null;

    foreach ($lines as $line) {
        $temp = explode(" ", $line);
        $val = $temp[0];
        
        switch ($val) {
            case "#":
                break;
            case "usemtl":
                // Extract material name and store it
                if (isset($temp[1])) {
                    $currentMaterial = trim($temp[1]);
                }
                break;
            case "mtllib":
            case "s":
            case "vt":
            case "vn":
            case "o":
                break;
                                
            case "v":
                $obj["verts"][] = array_slice($temp, 1, 3);
                break;
                
            case "f":
                $temp = array_slice($temp, 1, 3);
                
                foreach ($temp as $key => $val) {
                    $val = explode("/", $val);
                    $temp[$key] = $val[0];
                }
                
                $materialName = $currentMaterial !== null ? $currentMaterial : "defaultMaterial";
                $obj["faces"][] = array("indices" => $temp, "material" => $materialName);
                break;
        }
    }
    
    return $obj;
}

function export_OBJ2MAP($obj, $scale = 1, $snapToGrid = true, $version = "cod2")
{
    $map = "";
    $map .= "iwmap 4\n";

    if ($version == "cod5" || $version == "cod4") {
        $map .= "\"000_Global\" flags  active\n";
        $map .= "\"The Map\" flags\n";
    }

    $map .= "{\n";
    $map .= "\t\"classname\" \"worldspawn\"\n";

    foreach ($obj["faces"] as $face) {
        $vertStrArray = array();

        foreach ($face["indices"] as $vertIndex) {
            $vertIndex = (int)$vertIndex - 1;

            if ($vertIndex < 0 || !isset($obj["verts"][$vertIndex]) || count($obj["verts"][$vertIndex]) != 3)
                break;

            $vert = $obj["verts"][$vertIndex];

            for ($c = 0; $c < 3; $c++) {
                $coord = (float)$vert[$c] * $scale;

                if ($snapToGrid)
                    $coord = round($coord);

                $vert[$c] = $coord;
            }

            $vertStrArray[] = "v $vert[0] $vert[2] $vert[1] t -1600 -1600 -0.625 0.625\n";
        }

        if (count($vertStrArray) != 3)            //this code handles only triangles!
            continue;                        //so your *.obj file should consist only of them!

        $materialName = $face["material"];

        $faceStr = "";
        $faceStr .= "\t{\n";
        $faceStr .= "\t\tmesh\n";
        $faceStr .= "\t\t{\n";
        $faceStr .= "\t\t\ttoolFlags splitGeo;\n";
        $faceStr .= "\t\t\t$materialName\n"; // Use the material name associated with the face
        $faceStr .= "\t\t\tlightmap_gray\n";
        $faceStr .= "\t\t\t2 2 16 8\n";
        $faceStr .= "\t\t\t(\n";
        $faceStr .= "\t\t\t\t$vertStrArray[0]";        //play with the indexes here
        $faceStr .= "\t\t\t\t$vertStrArray[0]";        //there must be 3 uniques (0,1,2)
        $faceStr .= "\t\t\t)\n";
        $faceStr .= "\t\t\t(\n";
        $faceStr .= "\t\t\t\t$vertStrArray[1]";        //and one duplicate > quad to triangle!
        $faceStr .= "\t\t\t\t$vertStrArray[2]";        //this is the best for me right now
        $faceStr .= "\t\t\t)\n";
        $faceStr .= "\t\t}\n";
        $faceStr .= "\t}\n";

        $map .= $faceStr;
    }

    $map .= "}\n";

    return $map;
}