Method createGarbagePointSet

tutorials/common/scenegraph/geometry_creation.cpp:666–692

  Ref<SceneGraph::Node> SceneGraph::createGarbagePointSet(int hash, size_t numPoints, bool mblur, Ref<MaterialNode> material)
  {
    RandomSampler sampler;
    RandomSampler_init(sampler,hash);

    Ref<SceneGraph::PointSetNode> mesh = new SceneGraph::PointSetNode(RTC_GEOMETRY_TYPE_SPHERE_POINT, material,BBox1f(0,1),mblur?2:1);

    for (size_t i = 0; i < numPoints; i++)
    {
      const float x = cast_i2f(RandomSampler_getUInt(sampler));
      const float y = cast_i2f(RandomSampler_getUInt(sampler));
      const float z = cast_i2f(RandomSampler_getUInt(sampler));
      const float r = cast_i2f(RandomSampler_getUInt(sampler));
      mesh->positions[0].push_back(Vec3ff(x, y, z, r));

      if (mblur)
      {
        const float x = cast_i2f(RandomSampler_getUInt(sampler));
        const float y = cast_i2f(RandomSampler_getUInt(sampler));
        const float z = cast_i2f(RandomSampler_getUInt(sampler));
        const float r = cast_i2f(RandomSampler_getUInt(sampler));
        mesh->positions[1].push_back(Vec3ff(x, y, z, r));
      }
    }

    return mesh.dynamicCast<SceneGraph::Node>();
  }
}