Hi everyone,

I am trying to export from 3DS max to XNA, which I have done multiple times before with no issues. This time the XNA studio seems to be ignoring all the axis data from 3DS max, so when I export it the ship is always facing the wrong way. Is there any reason it would be doing this, or can anyone tell me their settings for 3DS Max 2010 -> .FBX format, as mine do not seem to be working anymore.

Below is a summary of what I am using, both in XNA and 3DS Max:

XNA Draw Function:

void DrawGameObject(GameObject gameobject)
        {
            Matrix[] transforms = new Matrix[gameobject.model.Bones.Count];
            gameobject.model.CopyAbsoluteBoneTransformsTo(transforms);

            foreach (ModelMesh mesh in gameobject.model.Meshes)
            {
                foreach (BasicEffect effect in mesh.Effects)
                {
                    effect.EnableDefaultLighting();
                    effect.PreferPerPixelLighting = true;

                    //effect.World = Matrix.Identity;
                    effect.World = Matrix.CreateScale(gameobject.scale) *
                                   Matrix.CreateFromQuaternion(gameobject.rotation) *
                                   Matrix.CreateTranslation(gameobject.position);

                    effect.Projection = projectionMatrix;
                    effect.View = viewMatrix;

                    graphics.GraphicsDevice.SamplerStates[0].AddressU = TextureAddressMode.Wrap;
                    graphics.GraphicsDevice.SamplerStates[0].AddressV = TextureAddressMode.Wrap;
                }
                mesh.Draw();
            }
        }

3DS Max:

TurboSmooth : On.
Convert Deforming Dummies to Bones: On.
Units: Inches.
Axis Conversion: Y-up.
FBX File Format: Binary, FBX201000

Other:

I have also noticed that within 3DS Max, the axis are always Z up in the bottom left hand corner, but within the view ports my objects axis are Z up, except for on the left where it is Y up. Is there anyway to make this one z up too, as this could be the issue?

Thanks,
Slayer

I don't fully understand this issue myself but ...

as far as I can tell the xna importer ignores the axis conversion so I used a custom processor:


that way I can use default settings when exporting

I would love to know the full story but the whole modelling topic is way too fiddly buggy and boring

Hey,

Firstly thanks for the reply, I know what you mean about it being buggy! At the moment I am just rotating it within my world matrix, just so I can work on the movement of my main object, so I will try what you suggest later. It's weird because i've never had this problem before, I had weird importing objects but managed to fix it, but I really can't remember how. So I will go back over all my old code at some point and see if I can give some further insight into this.

If anyone else has any other suggestions they are more then welcome :)

Thanks

Did you change the version of the FBX exporter you're using? As far as I can tell, they keep changing their minds on that in the different versions.

Hey,

Yeah I downloaded kw x-port ages back, thanks for the good work there. The only issue I had is I did not fully understand what options I needed to include, and what ones I didn't. Is there any chance you can pass me some good settings for it, as I am not very good when it comes to animation / 3DS max exporting.

Thanks :)