XQZ wallhack Battlefield 1942.

[Vuurvlieg]

Hey,

I have been discussing my problems with battlefield 1942 a while back here on the forums. The problem was that a normal xqz wallhack didn't work for this game.
It dind't draw the players trough the walls or any other object only stuff from the same stride.
At the time i didn't know how or why and had basicly tried everything ( i thought ).
The only way to achieve a wallhack effect in the game was to blend the walls. I really thought this looked crappy and i stopped working on it.
Today i started to have a look at it again and try some news things and i found some interesting stuff.

i just started messign with some functions - i had already tried pixels shaders but this didn't work out and the only option that i didn't try was vertex shaders. I found out that SetVertexShaderConstant was called a lot and i started trying to do some things with with it. After a while i had some nice working results.

snippers :

typedef float vec_t;
typedef vec_t vec3_t[3];
typedef vec_t vec4_t[4];

typedef struct vshader_s{
    vec4_t zcrap; // rotation stuff
    vec4_t zcrap1;// rotation stuff
    float depth_1; 
    float depth_2; 
    float depth_3;
    float depth_4;//the one we need?
    vec4_t zcrap3;
    vec4_t zcrap4;
    vec4_t zcrap5;
    vec4_t zcrap6;
    vec4_t zcrap7;
    float a_r; // to make the models a bit brighter - ( 1.0f 1.0f 1.0f 1.0f)
    float a_g;// or a chams kind of effect if you pick one color :)
    float a_b;//..
    float a_a;//..
}vshader_t;

////////////////////////////////////////////////

HRESULT APIENTRY hkIDirect3DDevice8::SetVertexShaderConstant(DWORD Register,CONST void* pConstantData,DWORD ConstantCount)
{
    vshader_t *pv = (vshader_t*)pConstantData;


    if(Register == 0 && ConstantCount == 9)
    {
        // make the models brighter ( not a full lambert - but not bad )
        pv->a_r = 1.0f; 
        pv->a_g = 1.0f;
        pv->a_b = 1.0f;
        pv->a_a = 1.0f;
        //xqz
        pv->depth_4 = 1.0f;
    }

    return m_pD3Ddev->SetVertexShaderConstant(Register, pConstantData, ConstantCount);
} 

Thats it have fun.

Credits :
- Azorbix for your excelent D3D BaseHook.
- Spartan
- me

[MasterRed]

He good Job !!! Great work ;P

[Sparten]

Awesome job, i havent seen any bf1942 hacks with a decent XQZ wallhack.

[s0beit]

nice investigative work!

[blankboy]

Hmm i tried this just now and i can load into the game but when i select my weapon pack it just crashes to the desktop


have you had this happen ?





[edit]

fixed my crashing problem injector was on auto inject , and WOW totaly ownage


http://img162.imageshack.us/img162/8...10936567hi.gif


im definatally gonna use this


have you gotten it to show colors behind the wall different that in front ?

ill fiddle around with it tonight

[/edit]

[bytecode]

Hi.

Does this also working for the mod Desert Combat Final (Bf1942) ?


Greetz, bytecode

[8!n63|2]

Very good work, thx for the infos.

[Vuurvlieg]

@ bytecode : Yes, the mod's only change the textures / skins of the players and not the engine.

Thanks for the replies glad its helpfull.

As you probably have seen you could get some unwated things to be drawn trough walls with this. Like the flags and tank tires for example. A way around this is the following :

In the hooked SetVertexShaderConstant you don't change the values you just save them to a global variable and then apply the changes in DrawIndexedPrimitive like this :

//Global
vshader_t m_verTex;

HRESULT APIENTRY hkIDirect3DDevice8::SetVertexShaderConstant(DWORD Register,CONST void* pConstantData,DWORD ConstantCount)
{
    vshader_t *pv = (vshader_t*)pConstantData;


    if(Register == 0 && ConstantCount == 9)
    {
        //Save the values in our global
        m_verTex = *pv;
    }

    return m_pD3Ddev->SetVertexShaderConstant(Register, pConstantData, ConstantCount);
}

// This is how your DIP could look :

HRESULT APIENTRY hkIDirect3DDevice8::DrawIndexedPrimitive(D3DPRIMITIVETYPE PrimitiveType,UINT minIndex,UINT NumVertices,UINT startIndex,UINT primCount)
{

    if(YourPlayerModelRec)
    {
        //Xqz wallhack effect
        m_verTex.depth_4 = 1.0f;
        // Lambert effect (kinda)
        m_verTex.a_r = 1.0f; 
        m_verTex.a_g = 1.0f; 
        m_verTex.a_b = 1.0f; 
        m_verTex.a_a = 1.0f; 

        m_pD3Ddev->SetVertexShaderConstant(0,(CONST void *)&m_verTex,9);

        return m_pD3Ddev->DrawIndexedPrimitive(PrimitiveType, minIndex, NumVertices, startIndex, primCount);
        
    }


    return m_pD3Ddev->DrawIndexedPrimitive(PrimitiveType, minIndex, NumVertices, startIndex, primCount);
} 

Enjoy!

PS : Please, if you use this add the proper credits to your hack.

[Esand15]

Is it possible to get the entire tank to show through the wall? instead of just the tracks? Sry for replying to this thread, since its a little old.

[MasterRed]

Is it possible to get the entire tank to show through the wall? instead of just the tracks? Sry for replying to this thread, since its a little old.

No its not possibel with a normal XQZ Wallhack , because the game Define own Material Stats .
And if u want to have Tanks "colored" or "BAD XQZ Wallhacked " u DONT need VertexShaders .

[nicosaan]

... Yes you can. It's like seeing people through the walls. I've done it. Same with grenades and C4.

[MasterRed]

... Yes you can. It's like seeing people through the walls. I've done it. Same with grenades and C4.

It doesent work trough all walls . You should better have check that . Thats why I posted
"BAD XQZ Wallhacked ".

[nicosaan]

? I can see the tank, grenade, and c4 through every wall in Berlin. Am I missing something?

[PizzaPan]

Thanks, i started playing bf1942 again and i updated my cheat to include this its the best wallhack i have seen yet, and the lambert is nice even if its only a little brighter it helps a lot from a distance.

Thanks again.

[affe555]

maybe an noob question but can i update this code to work with bf2142 ?