DX 贴图画不出来
void GenerateData()
{
rap3d.GetDevice()->CreateVertexBuffer( 10*sizeof(LVertex),
D3DUSAGE_WRITEONLY, VertexFVF, D3DPOOL_DEFAULT, &pBigSquareVB, NULL );
LVertex * v;
pBigSquareVB->Lock( 0, 0, (void**)(BYTE**)&v, 0 );
v[0].x = 0.0f; v[0].y = 0.0; v[0].z = 0.0f;
v[0].diffuse = 0xffff0000;
v[0].tu = 0.0f; v[0].tv = 0.5f;
v[1].x = 0.0f; v[1].y = 5.0f; v[1].z = 0.0f;
v[1].diffuse = 0xff0000ff;
v[1].tu = 0.5f; v[1].tv = 0.5f;
v[2].x = 5.0f; v[2].y = 5.0f; v[2].z = 0.0f;
v[2].diffuse = 0xffffffff;
v[2].tu = 0.5f; v[2].tv = 0.0f;
v[3].x = 5.0f; v[3].y = 0.0f; v[3].z = 0.0f;
v[3].diffuse = 0xff000fff;
v[3].tu = 0.0f; v[3].tv = 0.0f;
/*v[4].x = 10.0f; v[4].y =10.0f; v[4].z = 0.0f;
v[4].diffuse = 0xffffff00;
v[4].specular = 0xffff0000;
v[4].tu = 0.0f; v[4].tv = 0.0f;
v[5].x = 10.0f; v[5].y = 15.0f; v[5].z = 0.0f;
v[5].diffuse = 0xffffff00;
v[5].specular = 0xffff0000;
v[5].tu = 0.0f; v[5].tv = 0.0f;
v[6].x = 5.0f; v[6].y = 15.0f; v[6].z = 0.0f;
v[6].diffuse = 0xffffff00;
v[6].specular = 0xffff0000;
v[6].tu = 0.0f; v[6].tv = 0.0f;
v[7].x = 10.0f; v[7].y = 5.0f; v[7].z = 0.0f;
v[7].diffuse = 0xffffff00;
v[7].specular = 0xffff0000;
v[7].tu = 0.0f; v[7].tv = 0.0f;
v[8].x = 10.0f; v[8].y = 10.0f; v[8].z = 0.0f;
v[8].diffuse = 0xffffff00;
v[8].specular = 0xffff0000;
v[8].tu = 0.0f; v[8].tv = 0.0f;
v[9].x = 0.0f; v[9].y = 0.0f; v[9].z = 0.0f;
v[9].diffuse = 0xffffff00;
v[9].specular = 0xffff0000;
v[9].tu = 0.0f; v[9].tv = 0.0f;
*/
pBigSquareVB->Unlock();
}
bool MyTestRender()
{
if (TexMan.GetTex("girl"))
{
rap3d.GetDevice()->SetTexture(0,TexMan.GetTex("girl"));
}
rap3d.GetDevice()->SetTextureStageState( 0, D3DTSS_COLOROP, D3DTOP_MODULATE );
rap3d.GetDevice()->SetTextureStageState( 0, D3DTSS_COLORARG1, D3DTA_TEXTURE );
rap3d.GetDevice()->SetTextureStageState( 0, D3DTSS_COLORARG2, D3DTA_DIFFUSE );
rap3d.GetDevice()->SetTextureStageState( 0, D3DTSS_ALPHAOP, D3DTOP_DISABLE );
rap3d.GetDevice()->SetFVF(VertexFVF);
rap3d.GetDevice()->SetStreamSource(0, pBigSquareVB, 0, sizeof(LVertex));
rap3d.GetDevice()->DrawPrimitive( D3DPT_TRIANGLEFAN , 0 ,2);
return true;
}
[解决办法]
你在设置顶点数据时，只有四个顶点，这是不对的。DX按照每三个顶点一组绘制三角形，还有绘制时有剔除，默认是剔除背面的，你检查一下看看
