Updated Embree library to version 2.2

2015-01-28 16:07:34 +01:00
parent b930cfce27
commit 9b05283300
1941 changed files with 107083 additions and 242967 deletions
@@ -0,0 +1,156 @@
+// ======================================================================== //
+// Copyright 2009-2013 Intel Corporation                                    //
+//                                                                          //
+// Licensed under the Apache License, Version 2.0 (the "License");          //
+// you may not use this file except in compliance with the License.         //
+// You may obtain a copy of the License at                                  //
+//                                                                          //
+//     http://www.apache.org/licenses/LICENSE-2.0                           //
+//                                                                          //
+// Unless required by applicable law or agreed to in writing, software      //
+// distributed under the License is distributed on an "AS IS" BASIS,        //
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. //
+// See the License for the specific language governing permissions and      //
+// limitations under the License.                                           //
+// ======================================================================== //
+
+#include "tutorial/tutorial.h"
+#include "tutorial/obj_loader.h"
+#include "sys/taskscheduler.h"
+
+namespace embree
+{
+  /* name of the tutorial */
+  const char* tutorialName = "tutorial03";
+
+  /* configuration */
+  static std::string g_rtcore = "";
+
+  /* output settings */
+  static size_t g_width = 512;
+  static size_t g_height = 512;
+  static bool g_fullscreen = false;
+  static size_t g_numThreads = 0;
+
+  /* ISPC compatible mesh */
+  struct ISPCMesh
+  {
+    Vec3fa* positions;    //!< vertex position array
+    Vec3fa* normals;       //!< vertex normal array
+    Vec2f* texcoords;     //!< vertex texcoord array
+    OBJScene::Triangle* triangles;  //!< list of triangles
+    int numVertices;
+    int numTriangles;
+  };
+
+  /* ISPC compatible scene */
+  struct ISPCScene
+  {
+    ISPCMesh** meshes;
+    OBJScene::Material* materials;  //!< material list
+    int numMeshes;
+    int numMaterials;
+  };
+
+  /* scene */
+  OBJScene g_obj_scene;
+  static FileName filename = "default.obj";
+
+  static void parseCommandLine(Ref<ParseStream> cin, const FileName& path)
+  {
+    while (true)
+    {
+      std::string tag = cin->getString();
+      if (tag == "") return;
+
+      /* parse command line parameters from a file */
+      else if (tag == "-c") {
+        FileName file = path + cin->getFileName();
+        parseCommandLine(new ParseStream(new LineCommentFilter(file, "#")), file.path());
+      }
+
+      /* load OBJ model*/
+      else if (tag == "-i") {
+        filename = path + cin->getFileName();
+      }
+
+      /* parse camera parameters */
+      else if (tag == "-vp") g_camera.from = cin->getVec3fa();
+      else if (tag == "-vi") g_camera.to = cin->getVec3fa();
+      else if (tag == "-vd") g_camera.to = g_camera.from + cin->getVec3fa();
+      else if (tag == "-vu") g_camera.up = cin->getVec3fa();
+      else if (tag == "-fov") g_camera.fov = cin->getFloat();
+
+      /* frame buffer size */
+      else if (tag == "-size") {
+        g_width = cin->getInt();
+        g_height = cin->getInt();
+      }
+
+      /* full screen mode */
+      else if (tag == "-fullscreen") 
+        g_fullscreen = true;
+
+      /* rtcore configuration */
+      else if (tag == "-rtcore")
+        g_rtcore = cin->getString();
+
+      /* number of threads to use */
+      else if (tag == "-threads")
+        g_numThreads = cin->getInt();
+
+      /* skip unknown command line parameter */
+      else {
+        std::cerr << "unknown command line parameter: " << tag << " ";
+        while (cin->peek() != "" && cin->peek()[0] != '-') std::cerr << cin->getString() << " ";
+        std::cerr << std::endl;
+      }
+    }
+  }
+
+  /* main function in embree namespace */
+  int main(int argc, char** argv) 
+  {
+    /* create stream for parsing */
+    Ref<ParseStream> stream = new ParseStream(new CommandLineStream(argc, argv));
+
+    /* parse command line */  
+    parseCommandLine(stream, FileName());
+    if (g_numThreads) 
+      g_rtcore += ",threads=" + std::stringOf(g_numThreads);
+
+    /* initialize task scheduler */
+#if !defined(__EXPORT_ALL_SYMBOLS__)
+    TaskScheduler::create(g_numThreads);
+#endif
+
+    /* load scene */
+    loadOBJ(filename,g_obj_scene);
+
+    /* initialize ray tracing core */
+    init(g_rtcore.c_str());
+    
+    /* send model */
+    set_scene(&g_obj_scene);
+
+    /* initialize GLUT */
+    initGlut(tutorialName,g_width,g_height,g_fullscreen,true);
+    
+    return 0;
+  }
+}
+
+int main(int argc, char** argv)
+{
+  try {
+    return embree::main(argc, argv);
+  }
+  catch (const std::exception& e) {
+    std::cout << "Error: " << e.what() << std::endl;
+    return 1;
+  }
+  catch (...) {
+    std::cout << "Error: unknown exception caught." << std::endl;
+    return 1;
+  }
+}