exporting textures 3d models and textures from blender to xna 4.0

Question

So i'm trying to make a 3d game with 2d sprites. In blender I created a plane and used uv maps to map one of the sprites to the plane. When I push f12 and render the plane, the sprite is displayed.

I made sure to create a material for the plane and I made sure to add the texture as well as enabled uv mapping with the correct uv map.

I exported the file model as .fbx file and put this along with the texture image in the content folder of my project.

However when I render my model instead of the texture being displayed the plane is solid black.

What could be causing this? My draw looks like this:

public void Draw(Matrix View, Matrix Projection)
{
    // Calculate the base transformation by combining
    // translation, rotation, and scaling
    Matrix baseWorld = Matrix.CreateScale(Scale)
    * Matrix.CreateFromYawPitchRoll(
    Rotation.Y, Rotation.X, Rotation.Z)
    * Matrix.CreateTranslation(Position);

    foreach (ModelMesh mesh in Model.Meshes)
    {
        Matrix localWorld = modelTransforms[mesh.ParentBone.Index]
        * baseWorld;
        foreach (ModelMeshPart meshPart in mesh.MeshParts)
        {
            BasicEffect effect = (BasicEffect)meshPart.Effect;

            effect.World = localWorld;
            effect.View = View;
            effect.Projection = Projection;
            effect.EnableDefaultLighting();
        }
        mesh.Draw();
    }
}

Charles Haro · Accepted Answer · 2014-12-08T21:51:47.593

I figured it out. The reason my texture is not being displayed on my model is because I am not setting effect.world correctly

i changed the way i set the world matrix and edited some of my model class code. In case anyone else wants to render textured models with a nice class

public class CModel
{
    public Matrix Position { get; set; }
    public Vector3 Rotation { get; set; }
    public Vector3 Scale { get; set; }
    public Model Model { get; private set; }
    private Matrix[] modelTransforms;




  public CModel(Model Model, Vector3 Position)
  {
    this.Model = Model;
    modelTransforms = new Matrix[Model.Bones.Count];
    Model.CopyAbsoluteBoneTransformsTo(modelTransforms);
    this.Position = Matrix.CreateTranslation(Position);

  }

  public void Draw(Matrix viewMatrix, Matrix proMatrix)
  {

    foreach (ModelMesh mesh in Model.Meshes)
    {
        foreach (BasicEffect effect in mesh.Effects)
        {
            effect.EnableDefaultLighting();

            effect.View = viewMatrix;
            effect.Projection = proMatrix;
            effect.World = modelTransforms[mesh.ParentBone.Index] * Position;
        }

        mesh.Draw();
    }
  }

Draws the model at the specified position. If you want any other effects you can easily add them in to the draw.

exporting textures 3d models and textures from blender to xna 4.0

1 Answers1