Function addTerrain

tutorials/forest/forest_device.cpp:91–116

adds a ground plane to the scene */

/* adds a ground plane to the scene */
unsigned int addTerrain(RTCScene scene_i)
{
  /* create a triangulated plane with 2 triangles and 4 vertices */
  RTCGeometry mesh = rtcNewGeometry (g_device, RTC_GEOMETRY_TYPE_TRIANGLE);

  /* set vertices */
  RTCBuffer vertex_buffer = rtcNewSharedBufferHostDevice(g_device, (void *)terrain_vertices, 3*terrain_num_vertices*sizeof(float));
  rtcSetGeometryBuffer(mesh, RTC_BUFFER_TYPE_VERTEX, 0, RTC_FORMAT_FLOAT3, vertex_buffer, 0, 3*sizeof(float), terrain_num_vertices);
  rtcCommitBuffer(vertex_buffer);
  rtcReleaseBuffer(vertex_buffer);

  /* set triangles */
  RTCBuffer index_buffer = rtcNewSharedBufferHostDevice(g_device, (void *)terrain_indices, 3*terrain_num_triangles*sizeof(unsigned int));
  rtcSetGeometryBuffer(mesh, RTC_BUFFER_TYPE_INDEX, 0, RTC_FORMAT_UINT3, index_buffer, 0, 3*sizeof(unsigned int), terrain_num_triangles);
  rtcCommitBuffer(index_buffer);
  rtcReleaseBuffer(index_buffer);
  data.terrain_triangles = (Triangle*)rtcGetBufferDataDevice(index_buffer);

  g_memory_consumed += terrain_num_vertices * 3 * sizeof(float);
  g_memory_consumed += terrain_num_triangles * 3 * sizeof(unsigned int);

  rtcCommitGeometry(mesh);
  unsigned int geomID = rtcAttachGeometry(scene_i,mesh);
  rtcReleaseGeometry(mesh);
  return geomID;
}

bool monitorMemoryFunction(void* ptr, ssize_t bytes, bool post)
{