I just ran this code, being curious to see OpenGL’s matrix multiplication: main.cpp and I got the following result:
Modelview Identity:
Matrix:
7.92252e+33 5.60519e-45 0 0
5.95171e-39 3.21396e-39 3.21401e-39 3.2142e-39
7.92481e+33 7.8354e+33 NaN 7.92252e+33
7.92254e+33 5.95171e-39 3.21405e-39 5.95186e-39
Modelview Translation of 2, 2, 2:
Matrix:
7.92252e+33 5.60519e-45 0 0
5.95171e-39 3.21396e-39 3.21401e-39 3.2142e-39
7.92481e+33 7.8354e+33 NaN 7.92252e+33
7.92254e+33 5.95171e-39 3.21405e-39 5.95186e-39
Modelview Scaling of 2, 2, 2:
Matrix:
7.92252e+33 5.60519e-45 0 0
5.95171e-39 3.21396e-39 3.21401e-39 3.2142e-39
7.92481e+33 7.8354e+33 NaN 7.92252e+33
7.92254e+33 5.95171e-39 3.21405e-39 5.95186e-39
Projection Identity:
Matrix:
7.92252e+33 5.60519e-45 0 0
5.95171e-39 3.21396e-39 3.21401e-39 3.2142e-39
7.92481e+33 7.8354e+33 NaN 7.92252e+33
7.92254e+33 5.95171e-39 3.21405e-39 5.95186e-39
Projection glOrtho -2.0, 2.0, -2.0, 2.0, -2.0, 2.0:
Matrix:
7.92252e+33 5.60519e-45 0 0
5.95171e-39 3.21396e-39 3.21401e-39 3.2142e-39
7.92481e+33 7.8354e+33 NaN 7.92252e+33
7.92254e+33 5.95171e-39 3.21405e-39 5.95186e-39
Projection glFrustum -2.0, 2.0, -2.0, 2.0, 1.0, 10.0:
Matrix:
7.92252e+33 5.60519e-45 0 0
5.95171e-39 3.21396e-39 3.21401e-39 3.2142e-39
7.92481e+33 7.8354e+33 NaN 7.92252e+33
7.92254e+33 5.95171e-39 3.21405e-39 5.95186e-39
Process returned 0 (0x0) execution time : 0.125 s
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Shouldn’t it start with the identity matrix? I have a feeling I made a mistake somewhere.