When I implement point light, this occured, It is not the right way it should work, could someone help me pls ?


cbuffer CBuf : register(b0)
{
    matrix transform;
};

struct VSOut
{
    float4 color : COLOR;
    float3 normal : NORMAL;
    float3 worldPos : POSITION;
    float4 pos : SV_Position;
};

VSOut main(float3 pos : POSITION, float4 color : COLOR, float3 normal : NORMAL)
{
    VSOut vso;
    vso.pos = mul(float4(pos, 1.0f), transform);
    vso.worldPos = vso.pos;
    vso.color = color;
    vso.normal = normal;
    return vso;
}

cbuffer AmbientLightBuffer : register(b0)
{
   float4 ambientColor;
};

struct PointLight {
   float3 Position;
   float Range;
   float3 Color;
   float Intensity;
};

cbuffer LightBuffer : register(b1) {
   PointLight pointLights[8];
   int numPointLights;
   float3 padding;
};

float4 main(float4 color : COLOR, float3 normal : NORMAL, float3 worldPos : POSITION) : SV_Target
{
   float3 finalColor = color.rgb * ambientColor.rgb;

   for (int i = 0; i < numPointLights; ++i)
   {
       float3 lightDir = pointLights[i].Position - worldPos;
       float distance = length(lightDir);

       if (distance < pointLights[i].Range)
       {
           lightDir = normalize(lightDir);

           float diff = max(dot(normalize(normal), lightDir), 0.0f);

           float attenuation = saturate(1.0f - (distance / pointLights[i].Range));
           finalColor += diff * pointLights[i].Color * pointLights[i].Intensity * attenuation;
       }
   }

   return float4(finalColor, color.a);
}

TVertexColor vertices[] = {
       {{-1.0f,-1.0f,-1.0f}, {1.0f, 0.0f, 0.0f, 1.0f}, {-1.0f, 0.0f, 0.0f}},
       {{1.0f,-1.0f,-1.0f}, {0.0f, 1.0f, 0.0f, 1.0f}, { 1.0f, 0.0f, 0.0f}},
       {{-1.0f,1.0f,-1.0f}, {0.0f, 0.0f, 1.0f, 1.0f}, {-1.0f, 0.0f, 0.0f}},
       {{1.0f,1.0f,-1.0f}, {1.0f, 1.0f, 0.0f, 1.0f}, { 1.0f, 0.0f, 0.0f}},
       {{-1.0f,-1.0f,1.0f}, {1.0f, 0.0f, 1.0f, 1.0f}, {-1.0f, 0.0f, 0.0f}},
       {{1.0f,-1.0f,1.0f}, {0.0f, 1.0f, 1.0f, 1.0f}, { 1.0f, 0.0f, 0.0f}},
       {{-1.0f,1.0f,1.0f}, {0.0f, 1.0f, 1.0f, 1.0f}, {-1.0f, 0.0f, 0.0f}},
       {{1.0f,1.0f,1.0f}, {0.0f, 1.0f, 1.0f, 1.0f}, { 1.0f, 0.0f, 0.0f}},
   };

   unsigned short indices[] = {
       0,2,1, 2,3,1,
       1,3,5, 3,7,5,
       2,6,3, 3,6,7,
       4,5,7, 4,7,6,
       0,4,2, 2,4,6,
       0,1,4, 1,5,4
   };

   TObjectManager* TObjectManager = renderDevice->GeTObjectManager();
   TMesh* mesh = TObjectManager->AddMesh(vertices, sizeof(vertices) / sizeof(TVertexColor), indices, sizeof(indices) / sizeof(unsigned short), "romb");

   //mesh->SetPosition(0.2f, 1.5f, 1.0f);

   renderDevice->SetViewMatrix({ 5.0f, 5.0f, -5.0f, 1.0f }, { 0.0f, 0.0f, 0.0f, 1.0f }, { 0.0f, 1.0f, 0.0f, 0.0f });

   TPointLight* light = TObjectManager->AddPointLight({ 2.0f, 2.0f, 2.0f }, { 1.0f, 0.8f, 0.6f }, 10.0f, 10.0f, "pointLight");

 

I solved the problem, my normals was incorrect