Question

嘿伙计们我无法通过着色器渲染纹理。我真的不知道为什么，着色器文件只是实现一个简单的phong光照并在一个简单的四边形上插入纹理，但我得到的只是光线和材质颜色，好像没有纹理（纹理是一个石头纹理但我得到的只是白色）

这是着色器文件

//------------------------------------
uniform extern float4x4 matWVP;
uniform extern float4x4 matITW;
uniform extern float4x4 matW;
uniform extern float4 DiffMatr;
uniform extern float4 DiffLight;
uniform extern float4 AmbLight;
uniform extern float4 SpecLight;
uniform extern float4 AmbMatr;
uniform extern float3 LightPosW;
uniform extern float4 SpecMatr;
uniform extern float SpecPower;
uniform extern float3 EyePos;
uniform extern texture Tex;


//------------------------------------

sampler sTex = sampler_state
{
    Texture = <Tex>;
    Minfilter = LINEAR;
    Magfilter = LINEAR;
    Mipfilter = POINT;
    AddressU = WRAP;
    AddressV = WRAP;
};

struct vOut {
    float4 posH : POSITION0;
    float3 posW : TEXCOORD0;
    float3 normW: TEXCOORD1;
    float2 cTex : TEXCOORD2;
};

//------------------------------------
vOut VS_Def(float3 posL : POSITION0
 , float3 normL : NORMAL0
 , float2 cTex : TEXCOORD0)
{
    vOut V = (vOut)0;

    V.posH = mul(float4(posL, 1.0f), matWVP);
    V.posW = mul(float4(posL, 1.0f), matW).xyz;

    V.normW = mul(float4(normL, 1.0f), matITW).xyz;
    V.normW = normalize(V.normW);

    V.cTex = V.cTex;
    return V;

}

float4 PS_Def(float3 posW : TEXCOORD0
    ,float4 normW : TEXCOORD1
    ,float2 cTex : TEXCOORD2 ): COLOR
{
    float3 LightVec = LightPosW - posW;
    LightVec = normalize(LightVec);

    float3 RefLightVec = reflect(-LightVec, normW);

    float3 EyeVec = EyePos - posW;
    EyeVec = normalize(EyePos - posW);

    float d = max(0.0f, dot(normW, LightVec));
    float s = pow(max(dot(RefLightVec, EyeVec), 0.0f), SpecPower);

    float3 Diff = d * (DiffMatr * DiffLight).rgb;
    float3 Amb  =     (AmbMatr * AmbLight).rgb;
    float3 Spec = s * (SpecMatr * SpecLight).rgb;

    float3 TexColor = tex2D(sTex, cTex.xy).rgb;
    float3 color = Diff + Amb;

    return float4(color * TexColor + Spec, DiffMatr.a);;
}


//-----------------------------------
technique DefTech
{
    pass p0 
    {        
        VertexShader = compile vs_2_0 VS_Def();
        PixelShader = compile ps_2_0 PS_Def();

    }
}

照明和材料颜色如下：（P.S：WHITE = D3DXCOLOR（1.0f，1.0f，1.0f，1.0f））

漫反射材料=白色; 环境材料=白色; 镜面材质=白色* 0.5f;

漫射照明=白色* 0.8f; 环境照明=白色* 0.8f; 高光照明=白色* 0.5f; 镜面反射功率= 48.0f;

感谢帮助，伙计们

Answer 1

在你的顶点着色器中你有

V.cTex = V.cTex;

不应该是

V.cTex = cTex;

Direct3D中的纹理映射问题

1 个答案: