Hi everyone, Either I misunderstand the definition of Matrix4d.get(Matrix3d) or I've discovered a surprising bug.
Run the attached program to see, but it looks like (at least using my initial values), the 3x3 matrix returned is not the 3x3 rotation matrix of the 4x4 matrix, even with no affine transformation. E:\temp>java -cp . MatrixTest 4x4: 0.996823, 0.036243, 0.070927, -0.245034 -0.036412, 0.997481, 0.001096, 0.034035 -0.07084, -0.003675, 0.999336, 0.036529 0.0, 0.0, 0.0, 1.0 3x3: 0.03627668530489642, 0.9968262981253496, 0.07086136795886099 0.9993350269113018, -0.03644589019989963, 0.0010959360038394175 -0.0036750634657327997, -0.0707744901306144, 0.997485571552428 As you can see it is vastly re-arranged. Am I misinterpreting the definition of the method? Is the problem with my values? They're practically identity. josh
MatrixTest.java
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