rendering in gameworld

[mnbvc]

...


well, i discovered that it's not becoming darker/lighter, it's more/less transparent :P

so i tried setting the various alpha settings:

			pDevice->SetRenderState(D3DRS_ALPHAFUNC, D3DCMP_GREATEREQUAL);				
			pDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE);
			pDevice->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA);
			pDevice->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA);
			pDevice->SetRenderState(D3DRS_ALPHAREF, 0x00000001);
			pDevice->SetRenderState(D3DRS_ALPHATESTENABLE, TRUE);

but this didn't help :/

[kynox]

...


well, i discovered that it's not becoming darker/lighter, it's more/less transparent :P

so i tried setting the various alpha settings:

            pDevice->SetRenderState(D3DRS_ALPHAFUNC, D3DCMP_GREATEREQUAL);                
            pDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE);
            pDevice->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA);
            pDevice->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA);
            pDevice->SetRenderState(D3DRS_ALPHAREF, 0x00000001);
            pDevice->SetRenderState(D3DRS_ALPHATESTENABLE, TRUE);

but this didn't help :/

Shit, i remember that one actually. Sorry, this should do the trick:

    m_pDevice->SetRenderState( D3DRS_ALPHABLENDENABLE, TRUE );
    m_pDevice->SetRenderState( D3DRS_SRCBLEND, D3DBLEND_SRCALPHA );
    m_pDevice->SetRenderState( D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA );

    m_pDevice->SetTextureStageState( 0, D3DTSS_COLOROP, D3DTOP_DISABLE );
    m_pDevice->SetTextureStageState( 0, D3DTSS_ALPHAOP, D3DTOP_DISABLE );

[mnbvc]

it seems that
m_pDevice->SetTextureStageState( 0, D3DTSS_COLOROP, D3DTOP_DISABLE );
m_pDevice->SetTextureStageState( 0, D3DTSS_ALPHAOP, D3DTOP_DISABLE );
has just the same effect like pDevice->SetTexture(0, NULL);
one of both is needed to see anything

and if i include setting the alpha values or not doesn't change anything, it seems to be set by wow anyway (maybe there are situations where it isn't, who knows...)

but by setting D3DTSS_COLOROP and D3DTSS_ALPHAOP to D3DTOP_ADD i found out that there is much more happening:

currently i don't know how this helps me, but it's "interesting" :confused:

[youmew]

Hey all
I'm trying to make some render in the game but unfortunately i'm getting weird results :


the triangle is always moving when i change the camera position,
Its just like if the triangle was watching from the sky Oo


my source :

     cam = *getDevice();
       
       
        D3DTLVERTEX vertices[] =
        {
            { 0.0f, 0.0f, 5.0f, 0xff00ff00 },
            { 5.0f, 0.0f, 0.0f, 0xff0000ff },
            { -5.0f, 0.0f, 0.0f, 0xffff0000 }

        };

        DeviceP->SetVertexShader(NULL);
        DeviceP->SetPixelShader(NULL);

       
        //D3DXMatrixIdentity(&World);
       
        //getDevice()->fPos = getDevice()->fPos + 100.0f;
       
       
        D3DXVECTOR3 mew(0, 0, 1.0f);
        D3DXMatrixTranslation(&World, -6225.297f, 332.9926f, 383.205f);

        D3DXVECTOR3 vEyePt( cam.fPos[0], cam.fPos[1], cam.fPos[2] );
        D3DXVECTOR3 vLookatPt( cam.fPos[0]+cam.fViewMat[0][0], cam.fPos[1]+cam.fViewMat[0][1], cam.fPos[2]+cam.fViewMat[0][2] );
        D3DXVECTOR3 vUpVec( 0.0f, 0.0f, 1.0f );
        D3DXMatrixLookAtRH( &View, &vEyePt, &vLookatPt, &vUpVec );

        D3DXMatrixPerspectiveFovLH(&Proj,cam.fFov * 0.6f,cam.aspect,cam.zNearPlane, cam.zFarPlane);
       
        DeviceP->SetTransform(D3DTS_WORLD, &World);
        DeviceP->SetTransform(D3DTS_VIEW, &View);
        DeviceP->SetTransform(D3DTS_PROJECTION, &Proj);


        DeviceP->SetFVF(D3DFVF_XYZ | D3DFVF_DIFFUSE);
        DeviceP->SetTexture(0, NULL);
        DeviceP->SetRenderState( D3DRS_AMBIENT, 0xff7f7f7f );
        DeviceP->SetRenderState( D3DRS_LIGHTING, 1 );
       
        //DeviceP->SetRenderState( D3DRS_CULLMODE , 0);
        DeviceP->GetTransform(D3DTS_WORLD,&World);
        DeviceP->SetRenderState(D3DRS_ZENABLE, D3DZB_TRUE);
        DeviceP->SetRenderState(D3DRS_ZWRITEENABLE, TRUE);
        DeviceP->SetRenderState(D3DRS_ZFUNC, D3DCMP_LESSEQUAL);
        DeviceP->DrawPrimitiveUP(D3DPT_TRIANGLESTRIP, sizeof( vertices ) / sizeof( vertices[0] ) - 2, &vertices[0], sizeof(vertices[0]));

thanks for any help / advice
and sorry for the large pic :/

EDIT :managed to get it working with the forward() method , but still having some issues with textures and meshes :


it seems that there is a mismatch with the coordinates of textures , but being a noob in directx i cant find by myself how to fix it :s

[martinochsan]

What libary/dll do you use to directX?

[SKU]

probably d3d9.lib/d3d9.dll

[martinochsan]

probably d3d9.lib/d3d9.dll

Ok thanks for answer, but d3d9.dll is not a valid compoment =/

[PyGuy]

I'm attempting to render with the zbuffer enabled, but its not working correctly. If I render without the zbuffer, everything shows up where its supposed to with the correct colors, orientation, etc. However when I turn on the zbuffer, all my polys simply disappear. Here's the code I'm using to setup the Direct3D state:

void SetupWorld(IDirect3DDevice9* device, IDirect3DStateBlock9* stateBlock, bool useZBuffer)
{
	// Capture the current state before we mess with it
	stateBlock->Capture();

	// Set the min and max on the viewport so that our stuff doesn't draw over the UI
	D3DVIEWPORT9 viewport;
	device->GetViewport(&viewport);
	viewport.MinZ = 0.0f;
	viewport.MaxZ = 0.94f;
	device->SetViewport(&viewport);

	// Zero out the vertex and pixel shaders and prevent Blizzard from texturing our polys
	device->SetVertexShader(NULL);
	device->SetPixelShader(NULL);
	device->SetTexture(0, NULL);

	// Set the vertex format to use 3D position and a single color per vertex
	device->SetFVF(D3DFVF_XYZ | D3DFVF_DIFFUSE);

	// Setup the zbuffer
	if (useZBuffer)
	{
		device->SetRenderState(D3DRS_ZENABLE, D3DZB_TRUE);
		device->SetRenderState(D3DRS_ZWRITEENABLE, TRUE);
		device->SetRenderState(D3DRS_ZFUNC, D3DCMP_LESSEQUAL);
	}
	else
		device->SetRenderState(D3DRS_ZENABLE, FALSE);

	// Turn off lighting and backface culling
	device->SetRenderState(D3DRS_LIGHTING, FALSE);
	device->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);

	// Prevent Blizzard from setting the alpha of our polygons on mouseover
	device->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE);
	device->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA );
	device->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA );
}

This is all called from an EndScene detour (using HadesMem, thank you Cypher). If useZBuffer is false, all polygons draw but obscure the players, npcs, etc. If useZBuffer is true, the game world renders correctly but my polygons aren't there.

Is Blizzard doing something to the zbuffer when its drawing the UI? Maybe filling it with 0.94 or something and thus my polys always test as 'behind'. Should I be detouring a different function? Is there an obvious flaw with my code? Where am I going wrong here?

[PyGuy]

After playing around with it longer, I determined that the previous value of 0.94 is no longer correct. As of 4.0.6.13623 the value should be viewport.MaxZ = 0.92f;

I suspect that Blizzard is rendering the UI in layers where each layer gets its own z-index (0.93, 0.94, 0.95 etc) and that there happen to be 8 layers now instead of 6. Can anyone confirm this?

Also, my polygons still render on top of some UI elements (such as text in the chat frame) but not on top of others (such as the chat frame itself). Is this because Blizzard is doing device->SetRenderState(D3DRS_ZWRITEENABLE, FALSE); when drawing these elements and thus they draw but the zbuffer isn't saved?