Function createCube

tutorials/closest_point/closest_point_device.cpp:411–458

}

TriangleMesh* createCube (const Vec3fa& p, float r)
{
  /* create triangle mesh */
  TriangleMesh* cube = new TriangleMesh();
  cube->num_vertices = 8;
  cube->num_triangles = 12;
  cube->vertices = (Vertex*) alignedMalloc(sizeof(Vertex)*cube->num_vertices+1, 16);
  cube->triangles = (Triangle*) alignedMalloc(sizeof(Triangle)*cube->num_triangles, 16);

  /* set vertices and vertex colors */
  cube->vertices[0].x = -r+p.x; cube->vertices[0].y = -r+p.y; cube->vertices[0].z = -r+p.z;
  cube->vertices[1].x = -r+p.x; cube->vertices[1].y = -r+p.y; cube->vertices[1].z = +r+p.z;
  cube->vertices[2].x = -r+p.x; cube->vertices[2].y = +r+p.y; cube->vertices[2].z = -r+p.z;
  cube->vertices[3].x = -r+p.x; cube->vertices[3].y = +r+p.y; cube->vertices[3].z = +r+p.z;
  cube->vertices[4].x = +r+p.x; cube->vertices[4].y = -r+p.y; cube->vertices[4].z = -r+p.z;
  cube->vertices[5].x = +r+p.x; cube->vertices[5].y = -r+p.y; cube->vertices[5].z = +r+p.z;
  cube->vertices[6].x = +r+p.x; cube->vertices[6].y = +r+p.y; cube->vertices[6].z = -r+p.z;
  cube->vertices[7].x = +r+p.x; cube->vertices[7].y = +r+p.y; cube->vertices[7].z = +r+p.z;

  /* set triangles and face colors */
  int tri = 0;

  // left side
  cube->triangles[tri].v0 = 0; cube->triangles[tri].v1 = 1; cube->triangles[tri].v2 = 2; tri++;
  cube->triangles[tri].v0 = 1; cube->triangles[tri].v1 = 3; cube->triangles[tri].v2 = 2; tri++;

  // right side
  cube->triangles[tri].v0 = 4; cube->triangles[tri].v1 = 6; cube->triangles[tri].v2 = 5; tri++;
  cube->triangles[tri].v0 = 5; cube->triangles[tri].v1 = 6; cube->triangles[tri].v2 = 7; tri++;

  // bottom side
  cube->triangles[tri].v0 = 0; cube->triangles[tri].v1 = 4; cube->triangles[tri].v2 = 1; tri++;
  cube->triangles[tri].v0 = 1; cube->triangles[tri].v1 = 4; cube->triangles[tri].v2 = 5; tri++;

  // top side
  cube->triangles[tri].v0 = 2; cube->triangles[tri].v1 = 3; cube->triangles[tri].v2 = 6; tri++;
  cube->triangles[tri].v0 = 3; cube->triangles[tri].v1 = 7; cube->triangles[tri].v2 = 6; tri++;

  // front side
  cube->triangles[tri].v0 = 0; cube->triangles[tri].v1 = 2; cube->triangles[tri].v2 = 4; tri++;
  cube->triangles[tri].v0 = 2; cube->triangles[tri].v1 = 6; cube->triangles[tri].v2 = 4; tri++;

  // back side
  cube->triangles[tri].v0 = 1; cube->triangles[tri].v1 = 5; cube->triangles[tri].v2 = 3; tri++;
  cube->triangles[tri].v0 = 3; cube->triangles[tri].v1 = 5; cube->triangles[tri].v2 = 7; tri++;

  return cube;
}

TriangleMesh* createPlane (
  AffineSpace3fa const& M, // transformation