MAX_QUAD_DEPTH
for (element=0; element < MAX_QUAD_DEPTH; element++) {
for (info=0; info < MAX_QUAD_DEPTH; info++) {
for (info=0; info < MAX_QUAD_DEPTH; info++) {
for (info=0; info<MAX_QUAD_DEPTH; info++) {
for (info=0; info<MAX_QUAD_DEPTH; info++) {
for (element=0; element < MAX_QUAD_DEPTH; element++) {