void MA_BuildAxisRotation(idMat4& mat, float ang, int axis) {
float sinAng = idMath::Sin(ang);
float cosAng = idMath::Cos(ang);
mat.Identity();
switch(axis) {
case 0: //x
mat[1][1] = cosAng;
mat[1][2] = sinAng;
mat[2][1] = -sinAng;
mat[2][2] = cosAng;
break;
case 1: //y
mat[0][0] = cosAng;
mat[0][2] = -sinAng;
mat[2][0] = sinAng;
mat[2][2] = cosAng;
break;
case 2://z
mat[0][0] = cosAng;
mat[0][1] = sinAng;
mat[1][0] = -sinAng;
mat[1][1] = cosAng;
break;
}
}
void MA_BuildScale( idMat4 &mat, float x, float y, float z )
{
mat.Identity();
mat[0][0] = x;
mat[1][1] = y;
mat[2][2] = z;
}
