/// <summary> /// <para>Creates a vertex buffer that will map an array of float or vector primitives to a specified Vertex Usage and index</para> /// </summary> /// <param name="data"></param> /// <param name="elementUsage"></param> /// <param name="index"></param> /// <returns></returns> public static Vertices <VertexType> CreateSingleElementVertices(VertexType[] data, VertexElementUsage elementUsage, int index) { if (typeof(float) != typeof(VertexType) && typeof(Vector2) != typeof(VertexType) && typeof(Vector3) != typeof(VertexType) && typeof(Vector4) != typeof(VertexType) && typeof(Microsoft.Xna.Framework.Graphics.PackedVector.HalfVector2) != typeof(VertexType) && typeof(Microsoft.Xna.Framework.Graphics.PackedVector.HalfVector4) != typeof(VertexType)) { throw new ArgumentException("Only float and vector types are supported for single element vertex buffers"); } if (data == null) { throw new ArgumentNullException(); } if (index >= 16 || index < 0) { throw new ArgumentException("index"); } VertexElementFormat format = VertexDeclarationBuilder.DetermineFormat(typeof(VertexType)); VertexElement[] elements = new VertexElement[] { new VertexElement(0, 0, format, VertexElementMethod.Default, elementUsage, (byte)index) }; int stride = VertexElementAttribute.CalculateVertexStride(elements); return(new Vertices <VertexType>(data, elements, stride)); }
/// <summary> /// [NOT VALIDATED] Use with caution. No validation is performed by this method. Creates a vertex buffer from a raw data array, using a user specified <see cref="VertexElement"/> array. /// </summary> /// <param name="data"></param> /// <param name="elements"></param> /// <returns></returns> /// <remarks>This method is only here to get around some limitations of the XNA content pipeline</remarks> public static Vertices <VertexType> CreateRawDataVertices(VertexType[] data, VertexElement[] elements) { if (typeof(byte) != typeof(VertexType)) { throw new ArgumentException("Only byte[] raw vertices are supported at this time"); } if (data == null || elements == null) { throw new ArgumentNullException(); } if (elements.Length == 0) { throw new ArgumentException(); } int stride = VertexElementAttribute.CalculateVertexStride(elements); return(new Vertices <VertexType>(data, elements, stride)); }