is it possible to cut a hole in a dome?

[Felonius]

basically a cone shape, but i want to cut the top of it off, cant seem to subtract it tho : /

[Manquesa]

No, CSG Subtract will not work on patch meshes. You're just gonna have to make it as best you can using simple patch meshes and then bending them to the shape you need, or better yet make a cylinder without the endcaps and then drag the verticies at one end to form the cone shape and just don't close it all the way in (therefore leaving the hole you want).

 

Yeah, use the cylinder method, i've done that before, it should be releatively easy.