Function vm_MakeIdentity

vecmat/vector.cpp:300–303

void vm_ClearMatrix(matrix *dest) { memset(dest, 0, sizeof(matrix)); }

void vm_MakeIdentity(matrix *dest) {
  memset(dest, 0, sizeof(matrix));
  dest->rvec.x = dest->uvec.y = dest->fvec.z = 1.0;
}
void vm_MakeInverseMatrix(matrix *dest) {
  memset((void *)dest, 0, sizeof(matrix));
  dest->rvec.x = dest->uvec.y = dest->fvec.z = -1.0;