Function addCube

tutorials/subdivision_geometry/subdivision_geometry_device.cpp:104–132

adds a cube to the scene */

/* adds a cube to the scene */
unsigned int addCube (RTCScene scene_i)
{
  /* create a triangulated cube with 6 quads and 8 vertices */
  RTCGeometry geom = rtcNewGeometry(g_device, RTC_GEOMETRY_TYPE_SUBDIVISION);

  rtcSetSharedGeometryBuffer(geom, RTC_BUFFER_TYPE_VERTEX, 0, RTC_FORMAT_FLOAT3, cube_vertices, 0, sizeof(Vec3fa), 8);
  rtcSetSharedGeometryBuffer(geom, RTC_BUFFER_TYPE_INDEX, 0, RTC_FORMAT_UINT, cube_indices, 0, sizeof(unsigned int), NUM_INDICES);
  rtcSetSharedGeometryBuffer(geom, RTC_BUFFER_TYPE_FACE, 0, RTC_FORMAT_UINT, cube_faces, 0, sizeof(unsigned int), NUM_FACES);

  /* edge and vertex creases disabled */
#if 0  
  rtcSetSharedGeometryBuffer(geom, RTC_BUFFER_TYPE_EDGE_CREASE_INDEX,    0, RTC_FORMAT_UINT2, cube_edge_crease_indices,   0, 2*sizeof(unsigned int), 12);
  rtcSetSharedGeometryBuffer(geom, RTC_BUFFER_TYPE_EDGE_CREASE_WEIGHT,   0, RTC_FORMAT_FLOAT, cube_edge_crease_weights,   0, sizeof(float), 12);
  rtcSetSharedGeometryBuffer(geom, RTC_BUFFER_TYPE_VERTEX_CREASE_INDEX,  0, RTC_FORMAT_UINT,  cube_vertex_crease_indices, 0, sizeof(unsigned int), 8);
  rtcSetSharedGeometryBuffer(geom, RTC_BUFFER_TYPE_VERTEX_CREASE_WEIGHT, 0, RTC_FORMAT_FLOAT, cube_vertex_crease_weights, 0, sizeof(float), 8);
#endif
  
  rtcSetGeometryVertexAttributeCount(geom,1);
  rtcSetSharedGeometryBuffer(geom, RTC_BUFFER_TYPE_VERTEX_ATTRIBUTE, 0, RTC_FORMAT_FLOAT3, cube_colors, 0, sizeof(Vec3fa), 8);

  float* level = (float*) rtcSetNewGeometryBuffer(geom, RTC_BUFFER_TYPE_LEVEL, 0, RTC_FORMAT_FLOAT, sizeof(float), NUM_INDICES);
  for (unsigned int i=0; i<NUM_INDICES; i++)
    level[i] = EDGE_LEVEL;

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

/* adds a ground plane to the scene */
unsigned int addGroundPlane (RTCScene scene_i)