2 key colors?
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i want to do 2 key colors, in DX8 but i tried to do the "|" operation, but only the second color disapered...
how i can do that?
Simple answer: you can''t. You''re gonna have to do the conversion to the required format yourself.
Since it''s color keying , every pixel that has that color will be completely transparent so you gain no benefits from having 2 colorkeys .. at least as far as i can think of .
Say you want to make black and white the color keys, then you could lock the texture go through each pixel. If the pixel is blac or white, give it a 0 value so it dosnt show up. There is a function in d3dutil.h/.cpp called D3DUtil_SetColorKey()
You can use that to set the color key twice, once for each color.
And just out of curiosity...why do you need two color keys?
:::: [ Triple Buffer V2.0 ] ::::
HRESULT D3DUtil_SetColorKey( LPDIRECT3DTEXTURE8 pTexture, DWORD dwColorKey ){ // Get colorkey''s red, green, and blue components DWORD r = ((dwColorKey&0x00ff0000)>>16); DWORD g = ((dwColorKey&0x0000ff00)>>8); DWORD b = ((dwColorKey&0x000000ff)>>0); // Put the colorkey in the texture''s native format D3DSURFACE_DESC d3dsd; pTexture->GetLevelDesc( 0, &d3dsd ); if( d3dsd.Format == D3DFMT_A4R4G4B4 ) dwColorKey = 0xf000 + ((r>>4)<<8) + ((g>>4)<<4) + (b>>4); else if( d3dsd.Format == D3DFMT_A1R5G5B5 ) dwColorKey = 0x8000 + ((r>>3)<<10) + ((g>>3)<<5) + (b>>3); else if( d3dsd.Format != D3DFMT_A8R8G8B8 ) return E_FAIL; // Lock the texture D3DLOCKED_RECT d3dlr; if( FAILED( pTexture->LockRect( 0, &d3dlr, 0, 0 ) ) ) return E_FAIL; // Scan through each pixel, looking for the colorkey to replace for( DWORD y=0; y<d3dsd.Height; y++ ) { for( DWORD x=0; x<d3dsd.Width; x++ ) { if( d3dsd.Format==D3DFMT_A8R8G8B8 ) { // Handle 32-bit formats if( ((DWORD*)d3dlr.pBits)[d3dsd.Width*y+x] == dwColorKey ) ((DWORD*)d3dlr.pBits)[d3dsd.Width*y+x] = 0x00000000; } else { // Handle 16-bit formats if( ((WORD*)d3dlr.pBits)[d3dsd.Width*y+x] == dwColorKey ) ((WORD*)d3dlr.pBits)[d3dsd.Width*y+x] = 0x0000; } } } // Unlock the texture and return OK. pTexture->UnlockRect(0); return S_OK;} You can use that to set the color key twice, once for each color.
And just out of curiosity...why do you need two color keys?
:::: [ Triple Buffer V2.0 ] ::::
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