public SimpleObject(string name, IServiceProvider services, PositionTexCoordNormalVertex[] vertices, short[] indices,
string effectAsset, string diffuseMapAsset)
: base(name)
{
if (services == null)
throw new ArgumentNullException("services");
if (vertices == null)
throw new ArgumentNullException("vertices");
if (indices == null)
throw new ArgumentNullException("indices");
batchesRO = new BatchReadOnlyCollection(batches);
// Services
var resourceManager = (ResourceManager)services.GetService(typeof(ResourceManager));
var renderer = (Renderer)services.GetService(typeof(Renderer));
// Load effect & textures
effect = resourceManager.Load<Effect>(effectAsset, false);
diffuseMapView = new ShaderResourceView(renderer.Device, resourceManager.Load<Texture2D>(diffuseMapAsset));
effect.SetVariableByName("DiffuseMap", diffuseMapView, true);
// Create batch
CreateBatch(vertices, indices, renderer);
// Calculate boundary
CalculateBoundary(vertices);
}
private void CreateBatch(PositionTexCoordNormalVertex[] vertices, short[] indices, Renderer renderer)
{
Debug.Assert(vertices != null && indices != null);
int vertexBufferSize = PositionTexCoordNormalVertex.SizeInBytes * vertices.Length;
var verticesData = new DataStream(vertexBufferSize, true, true);
verticesData.WriteRange(vertices);
verticesData.Seek(0, SeekOrigin.Begin);
var vertexBuffer = new Buffer(renderer.Device, verticesData, vertexBufferSize, ResourceUsage.Default,
BindFlags.VertexBuffer, CpuAccessFlags.None, ResourceOptionFlags.None);
verticesData.Close();
int indexBufferSize = sizeof(short) * indices.Length;
var indicesData = new DataStream(indexBufferSize, true, true);
indicesData.WriteRange(indices);
indicesData.Seek(0, SeekOrigin.Begin);
var indexBuffer = new Buffer(renderer.Device, indicesData, indexBufferSize, ResourceUsage.Default,
BindFlags.IndexBuffer, CpuAccessFlags.None, ResourceOptionFlags.None);
indicesData.Close();
// Create batch
var vertexBufferBinding = new VertexBufferBinding(vertexBuffer, PositionTexCoordNormalVertex.SizeInBytes, 0);
var inputLayout = new InputLayout(renderer.Device, PositionTexCoordNormalVertex.InputElements,
effect.GetTechniqueByIndex(0).GetPassByIndex(0).Description.Signature);
batch = new DrawIndexedBatch(renderer.Device, effect, new[] { vertexBufferBinding }, inputLayout, indexBuffer, Format.R16_UInt,
indices.Length, 0, 0);
batches.Add(batch);
}
private void CalculateBoundary(PositionTexCoordNormalVertex[] vertices)
{
var positions = new Vector3[vertices.Length];
for (int i = 0; i < vertices.Length; ++i)
positions[i] = new Vector3(vertices[i].Position.X, vertices[i].Position.Y, vertices[i].Position.Z);
LocalBoundary = BoundingBox.FromPoints(positions);
}
