已经增加obj转gltf功能，尚未运行成功

examples/loadObjDemo.php

@@ -9,8 +9,8 @@ include dirname(dirname(__FILE__)) . "/vendor/autoload.php";
 
 ini_set('memory_limit','4096M');
 
-$ply = new LoardObj('/home/yuanjiajia/Desktop/blender/test/6D.obj');
-$ply = $ply->toPly(null,LoardObj::TYPE_TXT);
+$ply = new LoardObj('/home/yuanjiajia/Desktop/blender/test/3D.obj');
+$ply = $ply->toGltf();
 
 var_dump( $ply );
 

examples/printRender.php

@@ -7,58 +7,101 @@ namespace Blobt\Luxcore\scene;
 
 include dirname(dirname(__FILE__)) . "/vendor/autoload.php";
 
-//设置打印 渲染引擎 的配置参数
-$renderEngine = new render\RenderEngine();
-echo $renderEngine;
+// //设置打印 渲染引擎 的配置参数
+// $renderEngine = new render\RenderEngine();
+// echo $renderEngine;
 
-//设置打印GPU渲染设备的配置参数
-$openCL = new render\OpenCL();
-echo $openCL;
+// //设置打印GPU渲染设备的配置参数
+// $openCL = new render\OpenCL();
+// echo $openCL;
 
-//设置打印光线跟踪的配置参数
-$path = new render\Path();
-echo $path;
+// //设置打印光线跟踪的配置参数
+// $path = new render\Path();
+// echo $path;
 
-//设置打印 采样器 配置参数
-$sampler = new render\Sampler();
-echo $sampler;
+// //设置打印 采样器 配置参数
+// $sampler = new render\Sampler();
+// echo $sampler;
 
-//设置打印 灯光策略 配置参数
-$lightStrategy = new render\LightStrategy();
-echo $lightStrategy;
+// //设置打印 灯光策略 配置参数
+// $lightStrategy = new render\LightStrategy();
+// echo $lightStrategy;
 
-//设置打印 文件储存格式 配置参数
-$filesaver = new render\FileSaver();
-echo $filesaver;
+// //设置打印 文件储存格式 配置参数
+// $filesaver = new render\FileSaver();
+// echo $filesaver;
 
-//设置打印 渲染终止 配置参数
-$batch = new render\Batch();
-echo $batch;
+// //设置打印 渲染终止 配置参数
+// $batch = new render\Batch();
+// echo $batch;
 
-//设置打印 场景属性 配置参数
-$scene = new render\Scene();
-echo $scene;
+// //设置打印 场景属性 配置参数
+// $scene = new render\Scene();
+// echo $scene;
 
 
 
-//设置打印 “胶片” 配置参数
-$film = new render\Film();//添加一个胶片，
+// //设置打印 “胶片” 配置参数
+// $film = new render\Film();//添加一个胶片，
 
-$img = new render\Image();
-$img->effect = [new render\effect\Pretreatment(),new render\effect\ToneMapLinear(),new render\effect\CammaCorrection()];
-$film->addImage($img);
+// $img = new render\Image();
+// $img->effect = [new render\effect\Pretreatment(),new render\effect\ToneMapLinear(),new render\effect\CammaCorrection()];
+// $film->addImage($img);
 
-$film->addImage(new render\Image(['type' => 'ALBEDO']));
-$film->addImage(new render\Image(['type' => 'AVG_SHADING_NORMAL']));
+// $film->addImage(new render\Image(['type' => 'ALBEDO']));
+// $film->addImage(new render\Image(['type' => 'AVG_SHADING_NORMAL']));
 
-$film->addImage(new render\Image(['type' => 'OBJECT_ID']));
+// $film->addImage(new render\Image(['type' => 'OBJECT_ID']));
 
 
-$img = new render\Image();
-$img->effect = [new render\effect\NoiseReducerOIDN(),new render\effect\Pretreatment(),new render\effect\ToneMapLinear(),new render\effect\CammaCorrection()];
-$film->addImage($img);
+// $img = new render\Image();
+// $img->effect = [new render\effect\NoiseReducerOIDN(),new render\effect\Pretreatment(),new render\effect\ToneMapLinear(),new render\effect\CammaCorrection()];
+// $film->addImage($img);
 
 
-echo $film;
+// echo $film;
+
+// class vector implements \JsonSerializable 
+// {  
+//     public function __construct( $arr ) 
+//     {  
+//         $this->array = $arr;  
+//     }  
+  
+//     public function jsonSerialize() 
+//     {  
+//         return $this->array;  
+//     }  
+// } 
+
+
+// $test = [ 
+//     "x" => "geeks",  
+//     "y" => "for", 
+//     "z" => "geeks"
+// ];
+
+//  $test = new Gltf();
+
+// echo json_encode($test, JSON_PRETTY_PRINT);
+
+$rr = 'AACAPwAAgD8AAIA/AACAPwAAgD8AAIC/AACAvwAAgD8AAIC/AACAvwAAgD8AAIA/AAAAAAAAgD8AAAAAAAAAAAAAgD8AAAAAAAAAAAAAgD8AAAAAAAAAAAAAgD8AAAAAAAAgPwAAgD4AACA/AAAAPwAAYD8AAAA/AABgPwAAgD4AAAEAAgAAAAIAAwA=';
+
+// echo base64_decode($rr);
+
+// $fileType = base64_decode($rr);
+$fileType = "\x04\x00\xa0\x00";
+
+echo $fileType;
+echo "\n\n";
+
+$rr = unpack("cchars/nint",$fileType);
+
+var_dump($rr);
+
+
+$str = 'VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==';
+echo base64_decode($str);
+
 
 ?>

src/core/LoardObj.php

@@ -25,6 +25,26 @@ class LoardObj
      */
     public $plyData = [];
 
+    /**
+     * @var array 储存gltf模型数据
+     */
+    public $gltfData = [
+        'asset' => '{ "version" : "2.0" }',
+        'scene' => 0,
+        'scenes' => [],
+        'nodes' => [],
+        'cameras' => [],
+        'skins' => [],
+        'meshes' => [],
+        'accessors' => [],
+        'bufferViews' => [],
+        'buffers' => [],
+        'material' => [],
+        'textures' => [],
+        'images' => [],
+        'samplers' => []
+    ];    
+
 
 
 
@@ -57,9 +77,9 @@ class LoardObj
      */
     public function toGltf( string $path = null,string $format = self::TYPE_BINARY)
     {
-        // $this->createGltf();
-        // if( $path == null) $path = getcwd()."/gltf";
-        // return $this->writeGltf( $path, $format );
+        $this->createGltf();
+        if( $path == null) $path = getcwd()."/gltf";
+        return $this->writeGltf( $path, $format );
     }
 
         
@@ -237,6 +257,240 @@ class LoardObj
 
     }
 
+    /**
+     * 利用已经拆分的 obj 模型数据，生成多个 gltf 模型，并将这些模型储存在 gltfData 数组中
+     */
+    private function createGltf()
+    {
+        $scene = null;
+        $node = null;
+        $mesh = null;
+        $camera = null;
+        $skin = null;
+        $accessor = null;
+        $bufferView = null;
+        $buffer = null;
+        $material = null;
+        $texture = null;
+        $sampler = null;
+        $image = null;
+        $animation = null;
+        $meshCount = 0;
+        $bufferCount = 0;
+        foreach( $this->objData['meshs'] as $meshs_key => $meshs_value )
+        {   
+            $lineFace = null;
+            $v = null;
+            $vt = null;
+            $vn = null;
+            $byteOffset = 0;
+            foreach( $meshs_value as $face_value )                                      // 生成顶点和面数据
+            {   
+                $face_value = implode('/', $face_value);
+                $face_value = explode('/', $face_value);
+                foreach( $face_value as $v_key =>  $v_value )
+                {   
+                    switch( ($v_key+1) % 3 )
+                    {
+                        case 1:
+                            foreach($this->objData['v'][$v_value-1] as $xyz_value)
+                            {
+                                // $v .= pack('f',$xyz_value);
+                                $v .= (float)$xyz_value;
+                            }
+                            // $lineFace .= pack('L',$v_value);
+                            $lineFace .= (int)$v_value;
+                            break;
+
+                        case 2:
+                            if( $v_value == null )
+                            {
+                                // $vt .= pack('f',0.0000);
+                                // $vt .= pack('f',0.0000);
+                                $vt .= (float)0.0000;
+                                $vt .= (float)0.0000;
+                            }
+                            else 
+                            {   
+                                foreach(array_slice($this->objData['vt'][$v_value-1],0,2) as $t_value)
+                                {
+                                    // $vt .= pack('f',$t_value);
+                                    $vt .= (float)$t_value;
+                                }
+                            }
+                            break;
+
+                        case 0;
+                            foreach($this->objData['vn'][$v_value-1] as $n_value)
+                            {
+                                // $vn .= pack('f',$n_value);
+                                $vn .= (float)$n_value;
+                            }
+                            break;
+                        
+                        default:
+                            ;
+                    }
+                }
+            }
+
+            $vtnf = $v.$vn.$vt.$lineFace;
+            $buffer = null;
+            $buffer = "\t\t{\n";
+            $buffer .= "\t\t\t\"byteLength\" : ".strlen($vtnf).",\n";
+            $vtnf = base64_encode($vtnf);
+            $buffer .= "\t\t\t\"uri\" : \"data:application/octet-stream;base64,".$vtnf."\"\n";
+            $buffer .= "\t\t}\n";
+            $this->gltfData['buffers'][$meshCount] = $buffer;
+
+
+
+            
+            $bufferView = null;
+            $byteOffset = 0;
+            $bufferView = "\t\t{\n";
+            $bufferView .= "\t\t\t\"buffer\" : ".$meshCount.",\n";
+            $bufferView .= "\t\t\t\"byteLength\" : ".strlen($v).",\n";
+            $bufferView .= "\t\t\t\"byteOffset\" : ".$byteOffset."\n";
+            $bufferView .= "\t\t}\n";
+            $this->gltfData['bufferViews'][$bufferCount] = $bufferView;
+
+            $accessor = null;
+            $accessor = "\t\t{\n";
+            $accessor .= "\t\t\t\"bufferView\" : ".($bufferCount).",\n";
+            $accessor .= "\t\t\t\"componentType\" : 5126,\n";
+            $accessor .= "\t\t\t\"count\" : ".(strlen($v) / 4 / 3).",\n";
+            // $accessor .= "\t\t\t\"max\" : []";
+            // $accessor .= "\t\t\t\"min\" : []";
+            $accessor .= "\t\t\t\"type\" : \"VEC3\"\n";
+            $accessor .= "\t\t}\n";
+            $this->gltfData['accessors'][$bufferCount] = $accessor;
+            $bufferCount++;
+
+
+
+
+            $bufferView = null;
+            $byteOffset = $byteOffset + strlen($v);
+            $bufferView = "\t\t{\n";
+            $bufferView .= "\t\t\t\"buffer\" : ".$meshCount.",\n";
+            $bufferView .= "\t\t\t\"byteLength\" : ".strlen($vn).",\n";
+            $bufferView .= "\t\t\t\"byteOffset\" : ".$byteOffset."\n";
+            $bufferView .= "\t\t}\n";
+            $this->gltfData['bufferViews'][$bufferCount] = $bufferView;
+
+            $accessor = null;
+            $accessor = "\t\t{\n";
+            $accessor .= "\t\t\t\"bufferView\" : ".($bufferCount).",\n";
+            $accessor .= "\t\t\t\"componentType\" : 5126,\n";
+            $accessor .= "\t\t\t\"count\" : ".(strlen($vn) / 4 / 3).",\n";
+            $accessor .= "\t\t\t\"type\" : \"VEC3\"\n";
+            $accessor .= "\t\t}\n";
+            $this->gltfData['accessors'][$bufferCount] = $accessor;
+            $bufferCount++;
+
+
+
+
+
+            $bufferView = null;
+            $byteOffset = $byteOffset + strlen($vn);
+            $bufferView = "\t\t{\n";
+            $bufferView .= "\t\t\t\"buffer\" : ".$meshCount.",\n";
+            $bufferView .= "\t\t\t\"byteLength\" : ".strlen($vt).",\n";
+            $bufferView .= "\t\t\t\"byteOffset\" : ".$byteOffset."\n";
+            $bufferView .= "\t\t}\n";
+            $this->gltfData['bufferViews'][$bufferCount] = $bufferView;
+
+            $accessor = null;
+            $accessor = "\t\t{\n";
+            $accessor .= "\t\t\t\"bufferView\" : ".($bufferCount).",\n";
+            $accessor .= "\t\t\t\"componentType\" : 5126,\n";
+            $accessor .= "\t\t\t\"count\" : ".(strlen($vt) / 4 / 2).",\n";
+            $accessor .= "\t\t\t\"type\" : \"VEC2\"\n";
+            $accessor .= "\t\t}\n";
+            $this->gltfData['accessors'][$bufferCount] = $accessor;
+            $bufferCount++;
+
+
+
+            
+            $bufferView = null;
+            $byteOffset = $byteOffset + strlen($vt);
+            $bufferView = "\t\t{\n";
+            $bufferView .= "\t\t\t\"buffer\" : ".$meshCount.",\n";
+            $bufferView .= "\t\t\t\"byteLength\" : ".strlen($lineFace).",\n";
+            $bufferView .= "\t\t\t\"byteOffset\" : ".$byteOffset."\n";
+            $bufferView .= "\t\t}\n";
+            $this->gltfData['bufferViews'][$bufferCount] = $bufferView;
+
+            $accessor = null;
+            $accessor = "\t\t{\n";
+            $accessor .= "\t\t\t\"bufferView\" : ".($bufferCount).",\n";
+            $accessor .= "\t\t\t\"componentType\" : 5125,\n";
+            $accessor .= "\t\t\t\"count\" : ".(strlen($vt) / 4).",\n";
+            $accessor .= "\t\t\t\"type\" : \"SCALAR\"\n";
+            $accessor .= "\t\t}\n";
+            $this->gltfData['accessors'][$bufferCount] = $accessor;
+
+
+            
+
+            $mesh = null;
+            $mesh = "\t\t{\n";
+                $mesh .= "\t\t\t\"name\" : \"".$meshs_key."\",\n";
+                $mesh .= "\t\t\t\"primitives\" :\n";
+                $mesh .= "\t\t\t[\n";
+                    $mesh .= "\t\t\t\t{\n";
+                        $mesh .= "\t\t\t\t\t\"attributes\" :\n";
+                        $mesh .= "\t\t\t\t\t{\n";
+                            $mesh .= "\t\t\t\t\t\t\"POSITION\" :".($bufferCount -3).",\n";
+                            $mesh .= "\t\t\t\t\t\t\"NORMAL\" :".($bufferCount -2).",\n";
+                            $mesh .= "\t\t\t\t\t\t\"TEXCOORD_0\" :".($bufferCount -1).",\n";
+                        $mesh .= "\t\t\t\t\t}\n";
+                        $mesh .= "\t\t\t\t\t\"indices\" :".($bufferCount).",\n";
+                    $mesh .= "\t\t\t\t}\n";
+                $mesh .= "\t\t\t]\n";
+            $mesh .= "\t\t}\n";
+            $this->gltfData['meshes'][$meshCount] = $mesh;
+
+
+
+
+            $node = null;
+            $node = "\t\t{\n";
+            $node .= "\t\t\t\"mesh\" : ".$meshCount.",\n";
+            $node .= "\t\t\t\"name\" : \"".$meshs_key."\"\n";
+            $node .= "\t\t}\n";
+            $this->gltfData['nodes'][$meshCount] = $node;
+            $bufferCount++;
+            $meshCount++;
+        }
+
+        $scene = null;
+        $scene = "\t\t{\n";
+        $scene .= "\t\t\t\"name\" : \"".'Scene'."\",\n";
+        $scene .= "\t\t\t\"nodes\" :\n";
+        $scene .= "\t\t\t[\n";
+        foreach ($this->gltfData['nodes'] as $key => $value)
+        {
+            if( ($key+1) == count($this->gltfData['nodes']) )
+            {
+                $scene .= "\t\t\t\t".$key."\n";
+            }
+            else
+            {
+                $scene .= "\t\t\t\t".$key.",\n";
+            }
+        }
+        $scene .= "\t\t\t]\n";
+        $scene .= "\t\t}\n";
+        $this->gltfData['scenes'][] = $scene;
+
+        $this->gltfData['asset'] = '{ "version" : "2.0" }';
+        $this->gltfData['scene'] = 0;
+    }
+
 
     /**
      * 将 $plyData 数组中的ply模型 写入硬盘
@@ -307,4 +561,51 @@ class LoardObj
         return $plyFile;
     }
 
+    private function writeGltf( string $path, string $format )
+    {
+        if( !is_dir($path) )
+        {   
+            if( !mkdir( $path,0777,true) )
+            {
+                throw new \Exception("!!! Failed to create the specified directory:".$path);
+            }
+        }
+
+        $gltfFile = preg_split("/[.]+/", basename($this->objFile));
+        $gltfFile = array_reverse($gltfFile);
+        array_shift($gltfFile);
+        $gltfFile = implode('.', array_reverse($gltfFile));
+        $gltfFile = $path.'/'.$gltfFile.".gltf";
+
+        $handle = fopen( $gltfFile,'w+');
+        fwrite($handle,"{\n");
+        foreach ( $this->gltfData as $key => $value)
+        {   
+            if( !($value == []) )
+            {
+                $data = null;
+                if( is_array($value) )
+                {
+                    $data = "\t\"".$key."\" :\n";
+                    $data .= "\t[\n";
+                    foreach( $value as $key => $value )
+                    {
+                        $data .= $value;
+                    }
+                    if( $key == 'buffers' ) $data .= "\t]\n";
+                    else $data .= "\t],\n";
+                    fwrite($handle,$data);
+                }
+                else
+                {
+                    $data = "\t\"".$key."\" :";
+                    $data .= $value.",\n";
+                    fwrite($handle,$data);
+                }
+            }
+        }
+        fwrite($handle,"}\n");
+        fclose($handle);
+        $handle = null;
+    }
 }

src/scene/Gltf.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace Blobt\Luxcore\scene;
+use Blobt\Luxcore\utils\StringHelper;
+
+class Gltf
+{
+
+    /**
+     * @var object 用这个对象，标识这是一个gltf文件
+     */
+    private $asset;
+
+    /**
+     * @var integer 用一个整数标识加载一个默认的场景
+     */
+    private $scene = 0;
+
+    /**
+     * @var array 1、场景数组，解析一个gltf文件将从这里开始;
+     *            2、每一个元素值是一个对象类型，每一个对象描述了对 nodes数组 的索引，同时也是每一个场景的根节点;
+     */
+    private $scenes = [];
+
+    /**
+     * @var array 1、节点数组，每一个元素值是一个对象类型，每一个对象描述一个 mesh(模型)、camera()或skin(蒙皮)
+     *               数组的索引;
+     */
+    private $nodes = [];
+
+    /**
+     * @var array 1、模型数组，每一个元素值是一个对象类型，每一个对象是对一个模型的描述;
+     */
+    private $meshes = [];
+
+    /**
+     * @var array 1、材质数组，每一个元素值是一个对象类型，每一个对象是对一个材质的描述;
+     */
+    private $material = [];
+
+    /**
+     * @var array 1、纹理数组，每一个元素值是一个对象类型，每一个对象是对一个纹理的描述;
+     */
+    private $textures = [];
+
+    /**
+     * @var array 1、图像数组，每一个元素值是一个对象类型，每一个对象是对一个图像的描述;
+     */
+    private $images = [];
+
+    /**
+     * @var array 1、图像采样数组，每一个元素值是一个对象类型，每一个对象是对一个图像的描述;
+     */
+    private $samplers = [];
+
+}
+
+?>