DX9顶点着色器错误X3000：着色器文件中的非法字符

Question

编译顶点着色器时遇到错误。

loadfilefrommemory(water.vs)(44,2): error X3000: Illegal character in shader file

该文件是ANSI编解码器，我多次创建新文件。我仍然会收到非法字符的错误。我读了很多问题，但错误只出现在（1,1）其他问题上。那么我做错了什么？

这是我的档案：

//------- Constants --------
float4x4 xView;
float4x4 xProjection;
float4x4 xWorld;
float4x4 xReflectionView;
float4x4 xWindDirection;
float xWaveLength;
float xTime;
float xWindForce;

//------- Technique: Water --------

struct WaterVertexToPixel
{
    float4 Position                 : POSITION;    
    float4 ReflectionMapSamplingPos    : TEXCOORD1;
    float2 BumpMapSamplingPos        : TEXCOORD2;
    float4 RefractionMapSamplingPos : TEXCOORD3;
    float4 Position3D                : TEXCOORD4;
};

WaterVertexToPixel main(float4 inPos : POSITION, float2 inTex: TEXCOORD)
{
    WaterVertexToPixel Output = (WaterVertexToPixel)0;
    float4x4 preViewProjection = mul (xView, xProjection);
    float4x4 preWorldViewProjection = mul (xWorld, preViewProjection);
    float4x4 preReflectionViewProjection = mul (xReflectionView, xProjection);
    float4x4 preWorldReflectionViewProjection = mul (xWorld, preReflectionViewProjection);

    Output.Position = mul(inPos, preWorldViewProjection);
    Output.ReflectionMapSamplingPos = mul(inPos, preWorldReflectionViewProjection);
    Output.RefractionMapSamplingPos = mul(inPos, preWorldViewProjection);
    Output.Position3D = inPos;


     float4 absoluteTexCoords = float4(inTex, 0, 1);
     float4 rotatedTexCoords = mul(absoluteTexCoords, xWindDirection);
     float2 moveVector = float2(0, 1);

     // moving the water
     Output.BumpMapSamplingPos = rotatedTexCoords.xy/xWaveLength + xTime*xWindForce*moveVector.xy;

    return Output;    
}