简介:DirectX9是3DAPI方面的利剑。凭借着更高版本的像素着色(PIXELSHADER2.0)和顶点着色(VERTEXSHADER2.0),显示效果能产生质的飞跃:Directx9的强大威力令场景变成了活生生的大自然美景展现给我们,其动态画面的截图简直就可以算得上一幅幅以假乱真的风景照。正因如此,支持DX9的游戏无疑强烈吸引着玩家的注意。
简介:AgraphpropertyisasetofgraphssuchthatifthesetcontainssomegraphGthenitalsocontainseachisomorphiccopyofG(withthesamevertexset).AgraphpropoertyPonnverticesissaidtobeelusive,ifeverydecisiontreealgorithmrecognizingPmustexaminealln(n-1)/2parisofverticesintheworstcase.Karpconjecturedthateverynontrivialmonotonegraphpropertyiselusive,Inthispaper,thisconjectureisprovedforsomecases,Especially,itisshownthatiftheabstractsimplicialcomplexofanontrivialmonotonegraphpropertyPhasdimensionnotexceeding5,thenPiselusive.