uint32_t mat3be_coords[][2] = {
{0, 1}, {0, 2}, {0, 3}, {0, 4}, {1, 5}, {2, 5}, {3, 6}, {4, 6}, {1, 7}, {4, 7}, {1, 8}, {3, 8},
{6, 9}, {7, 9}, {8, 9}, {2, 10}, {3, 10}, {5, 11}, {8, 11}, {10, 11}
uint32_t mat3be_coords[][2] = {
{0, 1}, {0, 2}, {0, 3}, {0, 4}, {1, 5}, {2, 5}, {3, 6}, {4, 6}, {1, 7}, {4, 7}, {1, 8}, {3, 8},
{6, 9}, {7, 9}, {8, 9}, {2, 10}, {3, 10}, {5, 11}, {8, 11}, {10, 11}