Function initializeScene

tutorials/multi_instanced_geometry/scene.cpp:192–230

}

extern "C" RTCScene initializeScene(TutorialData& data, RTCDevice device)
{
  cleanupScene(data);

  data.g_instanceLevels.numLevels = 2;
  data.g_instanceLevels.numInstancesOnLevel = (unsigned int*)alignedUSMMalloc(2*sizeof(unsigned int), 16);
  data.g_instanceLevels.numInstancesOnLevel[0] = Trees::instances.numInstances;
  data.g_instanceLevels.numInstancesOnLevel[1] = Twigs01::instances.numInstances;
  data.g_normalTransforms = (LinearSpace3fa**)alignedUSMMalloc(2*sizeof(LinearSpace3fa*), 16);
  data.g_normalTransforms[0] = (LinearSpace3fa*)alignedUSMMalloc(data.g_instanceLevels.numInstancesOnLevel[0]*sizeof(LinearSpace3fa), 16);
  data.g_normalTransforms[1] = (LinearSpace3fa*)alignedUSMMalloc(data.g_instanceLevels.numInstancesOnLevel[1]*sizeof(LinearSpace3fa), 16);
  data.g_instanceLevels.normalTransforms = data.g_normalTransforms;

  RandomSampler sampler;
  RandomSampler_init(sampler, 98248);

  RTCScene twig = rtcNewScene(device);
  rtcSetSceneFlags(twig, RTC_SCENE_FLAG_FILTER_FUNCTION_IN_ARGUMENTS);
  addMesh(device, twig, Twig::mesh);
  rtcCommitScene(twig);

  RTCScene tree = rtcNewScene(device);
  rtcSetSceneFlags(tree, RTC_SCENE_FLAG_FILTER_FUNCTION_IN_ARGUMENTS);
  addInstances(device, tree, twig, Twigs01::instances, data.g_normalTransforms[1]);

  addMesh(device, tree, Tree01::mesh);
  rtcCommitScene(tree);
  rtcReleaseScene(twig);

  RTCScene scene = rtcNewScene(device);
  rtcSetSceneFlags(scene, RTC_SCENE_FLAG_FILTER_FUNCTION_IN_ARGUMENTS);
  addInstances(device, scene, tree, Trees::instances, data.g_normalTransforms[0]);
  addMesh(device, scene, Ground::mesh);

  rtcReleaseScene(tree);

  rtcCommitScene(scene);
  return scene;
}

// -----------------------------------------------------------------------------
} // namespace embree