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C-/C++-Quelltext

// Vertexshader
VS_OUTPUT_POINT VS_PointLighting(VS_INPUT IN)
{
    VS_OUTPUT_POINT OUT;

    float3 worldPos = mul(float4(IN.position, 1.0f), worldMatrix).xyz;
    
    OUT.position = mul(float4(IN.position, 1.0f), worldViewProjectionMatrix);
    OUT.texCoord = IN.texCoord;
    OUT.viewDir = cameraPos - worldPos;
    OUT.lightDir = (light.pos - worldPos) / light.radius;
    OUT.normal = mul(IN.normal, (float3x3)worldInverseTransposeMatrix);
    OUT.diffuse = material.diffuse * light.diffuse;
    OUT.specular = material.specular * light.specular;
    
    return OUT;
}


// Pixelshader
float4 PS_PointLighting(VS_OUTPUT_POINT IN) : COLOR
{
  float atten_ = saturate(1.0f - dot(IN.lightDir, IN.lightDir) / atten);

    float3 n = normalize(IN.normal);
    float3 l = normalize(IN.lightDir);
    float3 v = normalize(IN.viewDir);
    float3 h = normalize(l + v);
    
    float nDotL = saturate(dot(n, l));
    float nDotH = saturate(dot(n, h));
    float power = (nDotL == 0.0f) ? 0.0f : pow(nDotH, material.shininess);
    
    float4 color = (material.ambient * (globalAmbient + (atten_ * light.ambient))) +
                   (IN.diffuse * nDotL * atten_) + (IN.specular * power * atten_);
             
    return color * tex2D(colorMap, IN.texCoord);
}

C-/C++-Quelltext

float4 color = ((globalAmbient + (atten_ * light.ambient))) +
                   (IN.diffuse * nDotL * atten_) + (IN.specular * power * atten_);