Edited by - Funkodysse on January 31, 2002 10:31:12 AM
Near/far clipping
Author
Hi.
i would like to know how to set near/far clipping. could anyone be so kind and tell me
Edited by - Funkodysse on January 31, 2002 10:31:12 AM
Edited by - Funkodysse on January 31, 2002 10:31:12 AM
could you be more specific? in general, in d3d7/8, you set up the near/far clipping plane values when you set up the projection matrix
Most likely you use D3DXMatrixPerspectiveFovLH or a similar function to set up the projection matrix (both 7 and 8)
two of the paramiters set the veiw plane, check it out in the SDK!
two of the paramiters set the veiw plane, check it out in the SDK!
Author
DX8.
i tried this but not work.
D3DVIEWPORT8 Viewport;
Viewport.X=0;
Viewport.Y=0;
Viewport.Width=800;
Viewport.Height=600;
Viewport.MinZ=-1000.0f; //near clipping
Viewport.MaxZ=1000.0f; //far clipping
g_pDevice->SetViewport(&Viewport);
No no no, MinZ and MaxZ are the depth buffer values, not the near/far clipping planes.
Near may be 0.125, Far may be 1000, for example. Both must be greater than zero.
~CGameProgrammer( );
D3DXMatrixPerspectiveFovRH( &ProjectionMatrix, FOV * 0.5f, float(Viewport.Width) / float(Viewport.Height), NearDistance, FarDistance ); Near may be 0.125, Far may be 1000, for example. Both must be greater than zero.
~CGameProgrammer( );
Author
D3DVIEWPORT8 Viewport;
Viewport.X=0;
Viewport.Y=0;
Viewport.Width=800;
Viewport.Height=600;
Viewport.MinZ=-1000.0f;
Viewport.MaxZ=1000.0f;
g_pDevice->SetViewport(&Viewport);
D3DXMatrixLookAtLH(&g_ViewMatrix,&D3DXVECTOR3(0.0f,0.0f,-5.0f), &D3DXVECTOR3(0.0f,0.0f,0.0f), &D3DXVECTOR3(0.0f,1.0f,0.0f));
g_pDevice->SetTransform(D3DTS_VIEW,&g_ViewMatrix);
D3DXMatrixPerspectiveFovLH( &g_matProj, D3DX_PI/4, 1.0f, 1.0f, 100.0f );
g_pDevice->SetTransform( D3DTS_PROJECTION, &g_matProj );
D3DXMatrixPerspectiveFovRH( &g_matProj,0.5f,float(Viewport.Width) / float(Viewport.Height),-1000, -300); //far,near
It aint worked
Viewport.X=0;
Viewport.Y=0;
Viewport.Width=800;
Viewport.Height=600;
Viewport.MinZ=-1000.0f;
Viewport.MaxZ=1000.0f;
g_pDevice->SetViewport(&Viewport);
D3DXMatrixLookAtLH(&g_ViewMatrix,&D3DXVECTOR3(0.0f,0.0f,-5.0f), &D3DXVECTOR3(0.0f,0.0f,0.0f), &D3DXVECTOR3(0.0f,1.0f,0.0f));
g_pDevice->SetTransform(D3DTS_VIEW,&g_ViewMatrix);
D3DXMatrixPerspectiveFovLH( &g_matProj, D3DX_PI/4, 1.0f, 1.0f, 100.0f );
g_pDevice->SetTransform( D3DTS_PROJECTION, &g_matProj );
D3DXMatrixPerspectiveFovRH( &g_matProj,0.5f,float(Viewport.Width) / float(Viewport.Height),-1000, -300); //far,near
It aint worked
This is your error:
Viewport.MinZ=-1000.0f;
Viewport.MaxZ=1000.0f;
MinZ and MaxZ must be between 0 and 1 (being a percentage of your far clip distance in D3DXPerspectiveFovLH).
Neil
WHATCHA GONNA DO WHEN THE LARGEST ARMS IN THE WORLD RUN WILD ON YOU?!?!
Viewport.MinZ=-1000.0f;
Viewport.MaxZ=1000.0f;
MinZ and MaxZ must be between 0 and 1 (being a percentage of your far clip distance in D3DXPerspectiveFovLH).
Neil
WHATCHA GONNA DO WHEN THE LARGEST ARMS IN THE WORLD RUN WILD ON YOU?!?!
Author
hi.
i removed the viewport and D3DXMatrixPerspectiveFovRH and just changed the D3DXMatrixPerspectiveFovLH( &g_matProj, D3DX_PI/4, 1.0f, 0.1f, 500.0f ); to this.
and it worked..
thanks anyway.
i removed the viewport and D3DXMatrixPerspectiveFovRH and just changed the D3DXMatrixPerspectiveFovLH( &g_matProj, D3DX_PI/4, 1.0f, 0.1f, 500.0f ); to this.
and it worked..
thanks anyway.
Yeah, I just wrote the RH function because I use right-handed math. Never mix left-handed and right-handed functions.
~CGameProgrammer( );
~CGameProgrammer( );
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