InstancedModelProcessor.cs

/// <summary>
/// Content Pipeline processor applies the InstancedModel.fx shader
/// onto models, so they can be drawn using hardware instancing.
/// </summary>
[ContentProcessor(DisplayName = "Instanced Model")]
public class InstancedModelProcessor : ModelProcessor
{
    ContentIdentity rootIdentity;
    ContentIdentity shaderIdentity;
    /// <summary>
    /// Override the Process method to store the ContentIdentity of the model root node.
    /// </summary>
    public override ModelContent Process(NodeContent input, ContentProcessorContext context)
    {
        rootIdentity = input.Identity;

        return base.Process(input, context);
    }


    /// <summary>
    /// Override the ConvertMaterial method to apply our custom InstancedModel.fx shader.
    /// </summary>
    protected override MaterialContent ConvertMaterial(MaterialContent material,
                                                       ContentProcessorContext context)
    {
        // Create a new material.
        EffectMaterialContent newMaterial = new EffectMaterialContent();


        string root = @"C:\Users\armad\Desktop\wax\Wax.Desktop\Content\visual_models\Instancing.fx";
        string absolute = Path.GetFullPath(root);
        // Tell it to use our custom InstancedModel.fx shader.
        newMaterial.Effect = new ExternalReference<EffectContent>(absolute,
                                                                  rootIdentity);

        // Copy the texture setting across from the original material.
        BasicMaterialContent basicMaterial = material as BasicMaterialContent;

        if ((basicMaterial != null) && (basicMaterial.Texture != null))
        {
            newMaterial.Textures.Add("Texture", basicMaterial.Texture);
        }

        // Chain to the base ModelProcessor, so it can build our new material.
        return base.ConvertMaterial(newMaterial, context);
    }
}