Keyboard and mouse uses inconsistent coordinate systems, resulting in incorrect movement about directxtk HOT 4 OPEN

Standard modern math notation uses row-major matrices, column vectors, post-multiplication, and right-handed coordinates.

OpenGL uses column-major matrices, column vectors, post-multiplication, and right-handed viewing coordinates, where -Z is 'forward'.

DirectXMath (the underlying library used by SimpleMath) uses row-major matrices, row vectors, pre-multiplication, and left-handed viewing coordinates consistent with classic "DirectX" math setup. In this case +Z is 'forward' into the screen.

Note the DirectXMath library provides both LH and RH versions of handed matrix functions so it can actually support either style.

SimpleMath uses row-major matrices, row vectors, pre-multiplication, and right-handed viewing coordinates consistent with XNA Game Studio.

And just to be fun, the HLSL compiler default is to use column-major layout, but you can opt into row-major.

You may find this blog post helpful to read.

With that out of the way, the keyboard & mouse tutorial lesson uses a "WASD" style control scheme for the XY plane, and Spacebar/X for the Z movement. Traditionally "E" and "Q" in the WASD scheme are used for rotation or look left/right, so don't really follow how you implemented your controls.

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I understand the difference between row major and column major (although pre and post multiplication was a new one).
And I know the actual bindings are that of taste. Probably didn't need to comment on them. My bad lol.
My point was simply that there are basically two methods being used to generate the local forward vector. One uses a quaternion to transform users forward input, the other uses raw trig. Both yield different and opposing results as the pitch changes.
The result is that when the camera points down almost at all and presses forward, they move backwards because the math says their forward vector is the opposite of the vector used for the lookAt vector.
Are you saying this is expected behavior? If so, then disregard. But imho, anyone coming into this tutorial series would get very confused as to why they're moving the opposite direction of the key they're pressing.

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Are you using the 'orbit style' or the 'free camera' style?

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I'm using the free camera.

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