Howdy, I’m currently sitting infront of a computer with no compiler at hand…
So I’m making “free-flight” programming into a text editor (don’t laugh).
I’m currently writing a matrix class to work with OpenGL and D3D shaders. I’m working in a right-handed (like GL) coordinate system.
Can someone please verify this:
/// Four dimensional matrix in column major order.
struct Matrix4
{
float m11, m21, m31, m41;
float m12, m22, m32, m42;
float m13, m23, m33, m43;
float m14, m24, m34, m44;
/// Rotation about an axis.
void Rotation(const float angle, const float x, const float y, const float z)
{
// Angle in radians.
const float radians = angle * Math::DEG2RAD;
// Rotations.
const float s = sinf(radians);
const float c = cosf(radians);
const float t = 1.0F - c;
m11 = t * x * x + c;
m21 = t * x * y + s * z;
m31 = t * x * z - s * y;
m41 = 0.0F;
m12 = t * y * x - s * z;
m22 = t * y * y + c;
m32 = t * y * z + s * x;
m42 = 0.0F;
m13 = t * z * x + s * y;
m23 = t * z * y - s * x;
m33 = t * z * z + c;
m43 = 0.0F;
m14 = 0.0F;
m24 = 0.0F;
m34 = 0.0F;
m44 = 1.0F;
}
};
I somehow get the feeling that the matrix is in transposed order, sigh. Can someone please verify against glRotatef? Or against D3DXMatrixRotationAxis and afterwars D3DXMatrixTranspose. Thanks 
Should give the same results imho.
Thanks in advance.
P.S. Programming without a compiler at hand sucks.
