d3d 如何实现与texture某一个值做alpha

hardy_game

d3d 如何实现与texture与某一个值做alpha?


pd3dDevice->SetRenderState( D3DRS_ALPHAREF, 120); 设置了也没用啊

hardy_game

        pd3dDevice->SetRenderState(D3DRS_LIGHTING, FALSE);       
        pd3dDevice->SetRenderState(D3DRS_ALPHABLENDENABLE,TRUE);

        pd3dDevice->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA);
        pd3dDevice->SetRenderState(D3DRS_DESTBLEND,D3DBLEND_INVSRCALPHA );       
        pd3dDevice->SetRenderState( D3DRS_ALPHAREF, 120);

        pd3dDevice->SetTextureStageState( 0, D3DTSS_COLOROP,   D3DTOP_MODULATE );
        pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG1, D3DTA_TEXTURE );
        pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG2, D3DTA_DIFFUSE );

        pd3dDevice->SetTextureStageState( 0, D3DTSS_ALPHAOP,   D3DTOP_MODULATE );
        pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
        pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE);

King_jinjing

pd3dDevice->SetRenderState(D3DRS_LIGHTING, FALSE);
pd3dDevice->SetRenderState(D3DRS_ALPHABLENDENABLE,TRUE);

pd3dDevice->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA);
pd3dDevice->SetRenderState(D3DRS_DESTBLEND,D3DBLEND_INVSRCALPHA );
//pd3dDevice->SetRenderState( D3DRS_ALPHAREF, 120);

pd3dDevice->SetTextureStageState( 0, D3DTSS_COLOROP,   D3DTOP_MODULATE );
pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG1, D3DTA_TEXTURE );
pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG2, D3DTA_DIFFUSE );

pd3dDevice->SetRenderState(D3DRS_TEXTUREFACTOR,D3DCOLOR_ARGB(100,0,0,0));
               
pd3dDevice->SetTextureStageState(0,D3DTSS_ALPHAOP,D3DTOP_MODULATE);
pd3dDevice->SetTextureStageState(0,D3DTSS_ALPHAARG1,D3DTA_TEXTURE);
pd3dDevice->SetTextureStageState(0,D3DTSS_ALPHAARG2,D3DTA_TFACTOR);

xuexiyouxi1

o

一西子

SetRenderState( D3DRS_TEXTUREFACTOR, 0xffffffff)

taken

1.使用CreateTextureFromFileEx
2.use code below
pd3dDevice->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA);
pd3dDevice->SetRenderState(D3DRS_DESTBLEND,D3DBLEND_INVSRCALPHA );

pd3dDevice->SetTextureStageState( 0, D3DTSS_COLOROP,   D3DTOP_MODULATE );
pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG1, D3DTA_TEXTURE );
pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG2, D3DTA_DIFFUSE );

代码记不清,好象是上面那样写的,第一点很重要