单项选择题
A.SetRenderState(D3DRS_FOGVERTEXMODE,D3DFOG_LINEAR);B.SetRenderState(D3DRS_FOGDENSITY,;C.SetRenderState(D3DRS_FOGCOLOR,0xffffffff);D.SetRenderState(D3DRS_RANGEFOGENABLE,TRUE);
A.SetRenderState(D3DRS_FOGVERTEXMODE,D3DFOG_LINEAR);B.SetRenderState(D3DRS_FOGVERTEXMODE,D3DFOG_EXP1);C.SetRenderState(D3DRS_FOGLINEARMODE,D3DFOG_LINEAR);D.SetRenderState(D3DRS_FOGLINEARMODE,D3DFOG_EXP1);
A.利用颜色混合,对参数进行乘法操作B.利用颜色混合,对参数进行加法操作C.利用透明混合,对参数进行乘法操作D.利用透明混合,对参数进行加法操作