SharpDX/Direct2D Atlas 效果 InputRectangle 设置错误的 Vector 值

如何解决SharpDX/Direct2D Atlas 效果 InputRectangle 设置错误的 Vector 值

我的所有纹理都在一个大图集纹理中，我想使用 Direc2D/SharpDX 和 Atlas Effect 访问它们。问题是，效果接收到错误的 InputRectangle 值。 vector4 轴位置似乎是半随机交换的。

给 InputRectangle 一个 new Vector4(1200,20,50,120) 会产生一个值为 X: 50,Y: 20,Z: 1200,W: 120 的 InputRectangle 但是当 Vector 是类似 new Vector4(12,120) 时它可以工作

我不知所措

示例项目：

using SharpDX;
using SharpDX.Mathematics;
using SharpDX.Direct2D1;
using SharpDX.WIC;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Bitmap = SharpDX.Direct2D1.Bitmap;
using System.IO;
using SharpDX.Direct2D1.Effects;

namespace Test
{
    class Program
    {
        static void Main(string[] args) {
            Factory _factory = new Factory(FactoryType.MultiThreaded,DebugLevel.information);//Direct2DFactory.CreateFactory(FactoryType.SingleThreaded,DebugLevel.information,FactoryVersion.Auto);

            SharpDX.Configuration.EnableReleaSEOnFinalizer = true;

            rendertargetProperties props = new rendertargetProperties(rendertargetType.Hardware,new SharpDX.Direct2D1.PixelFormat(SharpDX.dxgi.Format.B8G8R8A8_Unorm,AlphaMode.Premultiplied),rendertargetUsage.None,FeatureLevel.Level_DEFAULT);

            Bitmaprendertarget _target = new Bitmaprendertarget(new DeviceContextrendertarget(_factory,props),CompatiblerendertargetOptions.GdiCompatible,new Size2F(4096,4096));

            DeviceContext deviceContext2d = _target.QueryInterface<DeviceContext>();

            Atlas a = new Atlas(deviceContext2d);
            a.InputRectangle = new Vector4(1200,120);

            int debugStep = 0;
            debugStep++;
        }
    }
}