some Problems with boolean...

bitboy0 · 18th April 2008, 03:13 PM

Hi Folks.

I do PovRay a while now... not very hard things, but I know about the primitives and how to add or substract primitives to get the form I need.

AC3D looks good and helps modelling... fine thing! But If I do some simple things it doesn't work the usual way... f.e.:

first I make a cylinder (x,y,z) = 2,2,2 at the center of the workspace (0,0,0) where the ends of the cylinder are at "y"
Then I make a second one, the same drection but 1,3,1 ... so it is longer than the first one but smaller.

Then I substract the secon one from the first one... I expect to see a hole in the middle of the bigger cylinder -> a pipe.

What I get is "almost" a pipe, but the edges somtimes are looking bad. some of the vertexes are not where they should be.. This is not nice! What is wrong there?

(see Picture)

regards

18th April 2008, 03:13 PM	#1
bitboy0 Junior Member Junior member Join Date: Apr 2008 Posts: 5	some Problems with boolean... Hi Folks. I do PovRay a while now... not very hard things, but I know about the primitives and how to add or substract primitives to get the form I need. AC3D looks good and helps modelling... fine thing! But If I do some simple things it doesn't work the usual way... f.e.: first I make a cylinder (x,y,z) = 2,2,2 at the center of the workspace (0,0,0) where the ends of the cylinder are at "y" Then I make a second one, the same drection but 1,3,1 ... so it is longer than the first one but smaller. Then I substract the secon one from the first one... I expect to see a hole in the middle of the bigger cylinder -> a pipe. What I get is "almost" a pipe, but the edges somtimes are looking bad. some of the vertexes are not where they should be.. This is not nice! What is wrong there? (see Picture) regards Attached Images