glLoadIdentity replaces the current matrix with the identity matrix.
It is semantically equivalent to calling glLoadMatrix
with the identity matrix
.ce
.EQ
left ( down 20 { ~ matrix {
ccol { 1 above 0 above 0 above 0~ }
ccol { 0 above 1 above 0 above 0~ }
ccol { 0 above 0 above 1 above 0~ }
ccol { 0 above 0 above 0 above 1 }
} } ~~ right )
.EN
but in some cases it is more efficient.