Color Grading

Game Programming

Color Grading

이민웅 2011. 11. 16. 13:27

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http://ttmayrin.tistory.com/34

포토샵에서 색 조정후 적용하는 방법인데...
신기하군...
하지만 볼륨텍스쳐로 만들어야하는데 그건 또 자료가 별로 없네;;;
찾아봐야겠다...

일단 볼륨텍스쳐 만드는거..

hr = pd3dDevice->CreateVolumeTexture( 16, 16, 16, 1, 0,
        D3DFMT_A8R8G8B8, D3DPOOL_MANAGED,
        &g_pVolumeTexture, NULL );
    if( FAILED(hr) )
        return hr;

D3DLOCKED_BOX LockedBox;
    hr = g_pVolumeTexture->LockBox( 0, &LockedBox, 0, 0 );
    if( FAILED(hr) )
        return hr;

for( UINT w=0; w<16; w++ )
    {
        BYTE* pSliceStart = (BYTE*)LockedBox.pBits;

for( UINT v=0; v<16; v++ )
        {
            for( UINT u=0; u<16; u++ )
            {
                FLOAT du = (u-7.5f)/7.5f;
                FLOAT dv = (v-7.5f)/7.5f;
                FLOAT dw = (w-7.5f)/7.5f;
                FLOAT fScale = sqrtf( du*du + dv*dv + dw*dw ) / sqrtf(1.0f);

if( fScale > 1.0f ) fScale = 0.0f;
                else                fScale = 1.0f - fScale;

DWORD r = (DWORD)((w<<4)*fScale);
                DWORD g = (DWORD)((v<<4)*fScale);
                DWORD b = (DWORD)((u<<4)*fScale);

((DWORD*)LockedBox.pBits)[u] = 0xff000000 + (r<<16) + (g<<8) + (b);
            }
            LockedBox.pBits = (BYTE*)LockedBox.pBits + LockedBox.RowPitch;
        }
        LockedBox.pBits = pSliceStart + LockedBox.SlicePitch;
    }

g_pVolumeTexture->UnlockBox( 0 );

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