如何在C＃項目中使用VS2012的自動HLSL編譯？

Question

http://blogs.msdn.com/b/chuckw/archive/2012/05/07/hlsl-fxc-and-d3dcompile.aspx

上面的鏈接指出“注意：這種自動集成僅適用於C ++項目，而不適用於C＃項目。” 我正在使用SlimDX，當然有一種方法可以實現，所以Visual Studio將在C＃項目的構建時編譯HLSL着色器？

Answer 1

我想你會發現這可能會為你做到這一點。

你必須在bin文件夾中有fxc.exe directx編譯器，它可以在direct x sdk中找到。

此類提供了一個可觀察的集合，可以在WPF中用於顯示着色器配置文件列表。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Diagnostics;
using System.Collections.ObjectModel;
using System.Threading;
using System.Reflection;

namespace Mars.HLSLEditor
{
    public class ShaderModel {
        public string Key {get; set;}
        public string Name { get; set; }
    }

    public class EffectCompiler
    {
        private static Dictionary<string, string> profiles = new Dictionary<string,string>();

        public static ObservableCollection<shadermodel> Profiles
        {
            get {
                var x = from p in profiles select new ShaderModel { Key = p.Key, Name = p.Value};
                return new ObservableCollection<shadermodel>(x);
            }
        }

        public static ShaderModel ProfileByKey(string key) {
            return new ShaderModel { Key = key, Name = profiles[key] };
        }

        public static int GetProfileIndex(ShaderModel model) {
            return Array.IndexOf(profiles.Keys.ToArray(), model.Key);
        }

        static EffectCompiler() {

            profiles.Add("cs_4_0", "Compute Shader model 4.0");
            profiles.Add("cs_4_1", "Compute Shader model 4.1");
            profiles.Add("cs_5_0", "Compute Shader model 5.0");
            profiles.Add("ds_5_0", "Domain Shader model 5.0");
            profiles.Add("fx_2_0", "Effect model 2.0");
            profiles.Add("fx_4_0", "Effect model 4.0");
            profiles.Add("fx_4_1", "Effect model 4.1");
            profiles.Add("fx_5_0", "Effect model 5.0");

            profiles.Add("gs_4_0", "Geometry Shader model 4.0");
            profiles.Add("gs_4_1", "Geometry Shader model 4.1");
            profiles.Add("gs_5_0", "Geometry Shader model 5.0");

            profiles.Add("hs_5_0", "Hull Shader model 5.0");

            profiles.Add("ps_2_0", "Pixel Shader model 2.0");
            profiles.Add("ps_2_a", "Pixel Shader model 2.0 A");
            profiles.Add("ps_2_b", "Pixel Shader model 2.0 B");
            profiles.Add("ps_2_sw", "Pixel Shader model 2.0 (software)");
            profiles.Add("ps_3_0", "Pixel Shader model 3.0");
            profiles.Add("ps_3_sw", "Pixel Shader model 3.0 (software)");
            profiles.Add("ps_4_0", "Pixel Shader model 4.0");
            profiles.Add("ps_4_0_level_9_0", "Pixel Shader model 4.0 (level 9.0)");
            profiles.Add("ps_4_0_level_9_1", "Pixel Shader model 4.0 (level 9.1)");
            profiles.Add("ps_4_0_level_9_3", "Pixel Shader model 4.0 (level 9.3)");
            profiles.Add("ps_4_1", "Pixel Shader model 4.1");
            profiles.Add("ps_5_0", "Pixel Shader model 5.0");

            profiles.Add("tx_1_0", "Texture Shader model 1.0 (software)");

            profiles.Add("vs_1_1", "Vertex Shader model 1.1");
            profiles.Add("vs_2_0", "Vertex Shader model 2.0");
            profiles.Add("vs_2_a", "Vertex Shader model 2.0 A");
            profiles.Add("vs_2_sw", "Vertex Shader model 2.0 (software)");
            profiles.Add("vs_3_0", "Vertex Shader model 3.0");
            profiles.Add("vs_3_sw", "Vertex Shader model 3.0 (software)");
            profiles.Add("vs_4_0", "Vertex Shader model 4.0");
            profiles.Add("vs_4_0_level_9_0", "Vertex Shader model 4.0 (level 9.0)");
            profiles.Add("vs_4_0_level_9_1", "Vertex Shader model 4.0 (level 9.1)");
            profiles.Add("vs_4_0_level_9_3", "Vertex Shader model 4.0 (level 9.3)");
            profiles.Add("vs_4_1", "Vertex Shader model 4.1");
            profiles.Add("vs_5_0", "Vertex Shader model 5.0");
        }

        static object locker = new object();

        public static bool TryCompile(string code, ShaderModel model, string entrypoint, out string error) {

            lock (locker)
            {
                string id = Thread.CurrentThread.ManagedThreadId.ToString();
                string path = string.Format("{0}\\tmp{1}.fx", Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), id);

                using (FileStream fs = new FileStream(path, FileMode.Create))
                {
                    byte[] data = Encoding.ASCII.GetBytes(code);
                    fs.Write(data, 0, data.Length);
                }

                string fxc = Path.Combine(new Uri(System.IO.Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase)).AbsolutePath, @"fxc.exe");

                if (!File.Exists(fxc))
                {
                    error = "No effect compiler executable!";
                    return false;
                }

                ProcessStartInfo psi = new ProcessStartInfo(fxc);
                psi.CreateNoWindow = true;
                psi.UseShellExecute = false;
                psi.RedirectStandardError = true;
                psi.Arguments = string.Format("/T {1} /E {2} /Fo\"{0}.obj\" \"{0}\"", path, model.Key, entrypoint);

                error = string.Empty;

                using (Process p = Process.Start(psi))
                {

                    StreamReader sr = p.StandardError;
                    error = sr.ReadToEnd().Replace(path, "Line ");

                    if (!p.WaitForExit(5000))
                    {
                        error = "General failure while compiling (timeout).";
                        return false;
                    }
                }

                if (File.Exists(path))
                    File.Delete(path);

                if (File.Exists(path + ".obj"))
                File.Delete(path + ".obj");

                if (error == string.Empty)
                {
                    return true;
                }

                error = error.Replace("compilation failed; no code produced", "");
                error = error.Trim();

                return false;
            }
        }
    }
}

此代碼屬於火星 :(他真的應該收到賞金） http://marscode.blogspot.com.au/2011/04/directx-xna-shader-test-compiler-in-c.html

這是另一個有用的資源：

它展示了如何在System.Windows.Media.Effects Namespace使用public abstract class ShaderEffect : Effect for C＃

http://msdn.microsoft.com/en-us/library/vstudio/system.windows.media.effects.shadereffect(v=vs.100).aspx?cs-save-lang=1&cs-lang=csharp#code -snippet-1

他提到public class EffectCompiler

http://msdn.microsoft.com/library/windows/desktop/bb232919(v=vs.85).aspx

編輯：

請包括

using System.IO;

之前

using System.Windows.Shapes;

它會拋出一個錯誤，但它會按此順序工作，並帶有警告，它仍會編譯。 使用Path和兩個名稱空間存在歧義。

請告知是否可以解決您的問題。

Answer 2

沒有簡單的方法可以將HLSL的Visual C ++ MSBuild規則添加到C＃項目中。 通常，您必須使用自定義構建步驟，或者如在StackOverflow上的其他位置所建議的那樣，您可以在解決方案中創建一個僅構建着色器的C ++項目。

您可以手動將3D資產和內容支持添加到C＃項目，就像在Stenning的Direct3D渲染手冊中為代碼所做的那樣，以獲得DDS，FBX-> CMO和DGSL着色器管道支持。 你可以在GitHub上看到這些項目。