/// <summary>
/// Draw the loaded model using the provided effect
/// </summary>
/// <param name="effect"></param>
protected virtual void DrawModel(BasicEffect effect)
{
Matrix initialWorld;
Matrix[] boneTransforms;
// Ensure we have a model to draw
if (ObjectModel == null)
{
return;
}
// Store the initial world matrix
initialWorld = effect.World;
// Build an array of the absolute bone transformation matrices
boneTransforms = new Matrix[ObjectModel.Bones.Count];
ObjectModel.CopyAbsoluteBoneTransformsTo(boneTransforms);
// Loop for each mesh
foreach (ModelMesh mesh in ObjectModel.Meshes)
{
// Update the world matrix to account for the position of this bone
effect.World = boneTransforms[mesh.ParentBone.Index] * initialWorld;
// Loop for each mesh part
foreach (ModelMeshPart meshpart in mesh.MeshParts)
{
// Set the texture for this meshpart unless we have been explicitly
// given a texture to use
if (base.ObjectTexture != null)
{
SetEffectTexture(effect, base.ObjectTexture);
}
else
{
SetEffectTexture(effect, ((BasicEffect)meshpart.Effect).Texture);
}
// Set the vertex and index buffers
effect.GraphicsDevice.SetVertexBuffer(meshpart.VertexBuffer);
effect.GraphicsDevice.Indices = meshpart.IndexBuffer;
// Draw the mesh part
foreach (EffectPass pass in effect.CurrentTechnique.Passes)
{
// Apply the pass
pass.Apply();
// Draw this meshpart
effect.GraphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList, meshpart.VertexOffset, 0, meshpart.NumVertices, meshpart.StartIndex, meshpart.PrimitiveCount);
}
}
}
// Restore the initial world matrix
effect.World = initialWorld;
}
