[Discuss] World to screen question topic

Hey guys. Im making esp for BF3 and I just can't get this fixed. Its world to screen. Im using mikroC W2S:

Code:

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bool WorldToScreen(Vec3 vWorldLocationVec3, Vec3* vOut)
{
        int height = getScreenHeight();
        int width = GetScreenWidth();
        DWORD GameRenderer;
        float fovY; //angle :).
        Mat4 firstPersonTransform;
       
        float aspect = width / height;
        ReadProcessMemory(Target.Handle, (void*)(OffsetGameRenderer), &GameRenderer, 4, NULL);
        ReadProcessMemory(Target.Handle, (void*)(GameRenderer + 0x98), &fovY, sizeof(FLOAT), NULL);
        ReadProcessMemory(Target.Handle, (void*)(GameRenderer + 0x50), &firstPersonTransform, sizeof(firstPersonTransform), NULL);
        D3DXVECTOR3 vOrigin = D3DXVECTOR3(firstPersonTransform[3][0], firstPersonTransform[3][1], firstPersonTransform[3][2]);
        D3DXVECTOR3 vLeft = D3DXVECTOR3(firstPersonTransform[0][0], firstPersonTransform[0][1], firstPersonTransform[0][2]);
        D3DXVECTOR3 vUp = D3DXVECTOR3(firstPersonTransform[1][0], firstPersonTransform[1][1], firstPersonTransform[1][2]);
        D3DXVECTOR3 vForward = D3DXVECTOR3(firstPersonTransform[2][0], firstPersonTransform[2][1], firstPersonTransform[2][2]);

       
        D3DXMATRIX viewMatrix;
        D3DXMatrixIdentity(&viewMatrix);
        viewMatrix._11 = vLeft.x; viewMatrix._12 = vUp.x; viewMatrix._13 = vForward.x;
        viewMatrix._21 = vLeft.y; viewMatrix._22 = vUp.y; viewMatrix._23 = vForward.y;
        viewMatrix._31 = vLeft.z; viewMatrix._32 = vUp.z; viewMatrix._33 = vForward.z;

        viewMatrix._41 = -D3DXVec3Dot(&vOrigin, &vLeft);
        viewMatrix._42 = -D3DXVec3Dot(&vOrigin, &vUp);
        viewMatrix._43 = -D3DXVec3Dot(&vOrigin, &vForward);

        D3DXMATRIXA16 Proj;
        D3DXMatrixPerspectiveFovRH(&Proj, fovY, aspect, 0.1f, 10000.0f);
        D3DXMATRIXA16 viewProjectionMatrix = viewMatrix * Proj;


        float mX = width * 0.5f;
        float mY = height * 0.5f;

        float w =
                viewProjectionMatrix(0, 3) * vWorldLocationVec3.x +
                viewProjectionMatrix(1, 3) * vWorldLocationVec3.y +
                viewProjectionMatrix(2, 3) * vWorldLocationVec3.z +
                viewProjectionMatrix(3, 3);

        if (w < 0.0001f)
        {
                vOut->z = w;

                return false;
        }

        float x =
                viewProjectionMatrix(0, 0) * vWorldLocationVec3.x +
                viewProjectionMatrix(1, 0) * vWorldLocationVec3.y +
                viewProjectionMatrix(2, 0) * vWorldLocationVec3.z +
                viewProjectionMatrix(3, 0);

        float y =
                viewProjectionMatrix(0, 1) * vWorldLocationVec3.x +
                viewProjectionMatrix(1, 1) * vWorldLocationVec3.y +
                viewProjectionMatrix(2, 1) * vWorldLocationVec3.z +
                viewProjectionMatrix(3, 1);

        vOut->x = mX + mX * x / w;
        vOut->y = mY - mY * y / w;
        vOut->z = w;

        return true;


}

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Problem is if i aim exactly on enemy box is okay, even if i move mouse up or down ( so Y is okay):


But if i move my camera left or right this is what happens:


I think problem is in W2S. I made hack for bf3 in C#, translated this W2S funtcion (above) and it worked, idk what is problem here (guess its something with X).

Thank you for your answers! Janck.