FrameTransformMatrix

Just to further simplify things, I am trying to load a simple scene with a box and a sphere in it, with no bones. Do I just need to manually set the world transformation matrix to the CombinedMatrix after I''ve updated the heirarchy?

Thanks,
Chris

I believe I figured out how to manually set the world matrix. Okay, I just used the frame''s combined matrix like I thought I could, set the world matrix for that, then draw the subset. My next question is...

TrueSpace seems to export the rotation that is supposed to be around the z or x axis as a rotation in the z axis. Can I switch the transformation matrix around, which components, to make the rotation occur in the z or x axis instead when I load the animation data?

Thanks,
Chris

Okay, next bit of info. The rotations are exported as quaternions in the x file. Can I re-arrange the way the data is read in from the x parser to cause it to rotate around a different axis? Or is it more complicated than that?

I feel lonely, talking to myself...lalalala

Thanks,
Chris

Ahhh, back again I am. I found one problem in the code and wanted to post it for future seekers of said problem.

Truespace exports objects under a parent frame (called Selection for instance) when you select multiple objects for the export. Then, a section is added to the x file for the animation of "Selection" and it''s merely left empty in some occassions.

Now, when you load the animation up and call the Update function from the code (code from the Advanced Animation in DirectX book), the empty selection animation resets the transformation matrix for the parent transform object to identity but doesn''t update it with animation information (because it doesn''t exist)! To fix, merely add extra conditionals to resetting the transform matrix, such as one of the movement pointers (rotation, translation, etc.) must be defined.

I hope somewhere down the line, someone finds this useful, although it doesn''t help with my other problem. The quaternions provided are rotating the object unlike it should...

Any help is appreciated.
Chris

As another update, I changed the code to instead of setting the TransformationMatrix to Identity...to change it to matOriginal.

My X file is structured as so:

Frame Selection
{
Frame Cube { Stuff and mesh }
Frame Cylinder
{
TransformMatrix Cylinder-TM {}
Frame Cylinder-extra
{
TransformMatrix Cylinder-extra-TM {}
Mesh {}
}
}
}

AnimationSet A1
{
Animation A1A
{
{Cylinder}
AnimationKey
{
Rotations and Translations.
}
}
}

Of course this is simplified. Why would the animation animate the "Cylinder" frame instead of the "Cylinder-extra" frame. The Cylinder frame doesn''t have the mesh data in it, the Cylinder-extra frame does. This may be why my quaternion rotations are off. I update the transformmatrix in the frame without the mesh in it for the animation data. Then I perform the heirarchy update. Then I draw the mesh with the frame that has the mesh data in it. Does that sound reasonable?

Chris