>>234
ほい
http://www.microsoft.com/japan/msdn/library/ja/DirectX9_c/directx/graphics/programmingguide/usingdirect3d/lightsandmaterials/directlightvsambientlight.asp

D3DDevice.SetRenderState(D3DRS_LIGHTING,TRUE);
D3DDevice.SetRenderState(D3DRS_AMBIENT,D3DCOLOR_RGBA(255,255,255,255));

direct lightはひとつも要らない。