Boolean Problem

mohsin_95 · May 11th, 2003

Hi all

I am working on a new project at office. While working with boolen i have a problem. its not giving the desired results.

When i do boolean more than two times on a single object, its start missing the interlinking faces.
How, i don't know. Any one who knows how to fix this?

Thanks

Craig Ramsay · May 11th, 2003

Probably better to post this problem under your specific software... I take it that you are using max or viz?

Max and viz really do have poor booleans so you are best to try and avoid using them at all costs. The example that you have shown could have easily been made from extruded splines for example.

If you really have to use booleans then take a look at the Power Booleans plugin, it works much better than max's booleans.

Craig

STRAT · May 11th, 2003

what exactly are you trying to boolean? that colourful image doesn't say anything and that sheet of black circles i dont understand.

bigcahunak · May 11th, 2003

Quote:

Originally posted by STRAT:
what exactly are you trying to boolean? that colourful image doesn't say anything and that sheet of black circles i dont understand.

Looks like he is trying to subtract the black cylinders from that green object, and the ones marked in red didn't subtact. However I have no idea what its got to do with the upper image, which looks nice nevertheless.

Craig, if I remeber correctly, mohsin is a MAX user, so you advice gets another vote here.

quizzy · May 11th, 2003

what you could is the folowing:

Make the green obeject a little denser (more polygons) and attach all the cylinders and then boolean.

but the simpliest way to do this is top draw a rectangle, draw circle splines and attach them aal, and extrude'm

Craig Ramsay · May 11th, 2003

Strat if you look at the circles that have been marked with green they have an inner edge where as the booleans that didn't work correctly are missing the inner edge. It would be easier to see if the object was thicker.

Craig

STRAT · May 11th, 2003

yeah, i see it now.

max/viz booleans aren't really that crap, you just need to know how to use them effectively/correctly.

insert a load more faces into that green flat bit, and also make object editable between each boolean.

Craig Ramsay · May 12th, 2003

Yeah I wouldn't say they are crap but beginners tend to find it difficult to get a grasp of.

They work better if you are cutting into a dense mesh then you can use the optimise modifier to reduce the amount of faces in the object. I found a tutorial on max booleans once... I will try and find it and post a link.

Craig

plastic · May 12th, 2003

boolean operation like this one (holes in a curved surface) don't work well with mesh objects.
max's booleans also are can't handle multiple operators very good (lots of holes).
the best way would be to do it with solids/nurbs. with autocad or rhino. or even archicad, in case of windows.

there are plugins for max for better booleans, power solids and power booleans, but i don't recommend them, since they are expensive and buggy.

Craig Ramsay · May 12th, 2003

Plastic have you had problems with power booleans? I have it installed and think it is fantastic, I hardly ever have problems with it :???:

Craig

May 11th, 2003	#1 (permalink)
mohsin_95 Junior Member Join Date: Apr 2003 Location: Kuwait Age: 31 Posts: 7 Name: Mohsin Raza	Hi all I am working on a new project at office. While working with boolen i have a problem. its not giving the desired results. When i do boolean more than two times on a single object, its start missing the interlinking faces. How, i don't know. Any one who knows how to fix this? Thanks __________________ http://www.risingdust.net/

May 11th, 2003	#2 (permalink)
Craig Ramsay Moderator Join Date: Aug 2002 Location: Scotland Age: 28 Posts: 741 Name: Craig Ramsay	Probably better to post this problem under your specific software... I take it that you are using max or viz? Max and viz really do have poor booleans so you are best to try and avoid using them at all costs. The example that you have shown could have easily been made from extruded splines for example. If you really have to use booleans then take a look at the Power Booleans plugin, it works much better than max's booleans. Craig __________________ www.shakedigital.com

May 11th, 2003	#3 (permalink)
STRAT Super Moderator Join Date: Dec 2001 Location: Cardiff, Wales, UK. Age: 36 Posts: 6,503 Name: Stephen Leworthy	what exactly are you trying to boolean? that colourful image doesn't say anything and that sheet of black circles i dont understand. __________________

May 11th, 2003	#5 (permalink)
quizzy Super Moderator Join Date: Apr 2002 Location: Utrecht, The Netherlands Age: 35 Posts: 1,576 Name: Michiel Quist	what you could is the folowing: Make the green obeject a little denser (more polygons) and attach all the cylinders and then boolean. but the simpliest way to do this is top draw a rectangle, draw circle splines and attach them aal, and extrude'm __________________ Michiel Quist http://www.3idee.nl

May 11th, 2003	#6 (permalink)
Craig Ramsay Moderator Join Date: Aug 2002 Location: Scotland Age: 28 Posts: 741 Name: Craig Ramsay	Strat if you look at the circles that have been marked with green they have an inner edge where as the booleans that didn't work correctly are missing the inner edge. It would be easier to see if the object was thicker. Craig __________________ www.shakedigital.com

May 11th, 2003	#7 (permalink)
STRAT Super Moderator Join Date: Dec 2001 Location: Cardiff, Wales, UK. Age: 36 Posts: 6,503 Name: Stephen Leworthy	yeah, i see it now. max/viz booleans aren't really that crap, you just need to know how to use them effectively/correctly. insert a load more faces into that green flat bit, and also make object editable between each boolean. __________________

May 12th, 2003	#8 (permalink)
Craig Ramsay Moderator Join Date: Aug 2002 Location: Scotland Age: 28 Posts: 741 Name: Craig Ramsay	Yeah I wouldn't say they are crap but beginners tend to find it difficult to get a grasp of. They work better if you are cutting into a dense mesh then you can use the optimise modifier to reduce the amount of faces in the object. I found a tutorial on max booleans once... I will try and find it and post a link. Craig __________________ www.shakedigital.com

May 12th, 2003	#9 (permalink)
plastic Senior Member Join Date: May 2002 Location: vienna, EU Posts: 314 Name: Marc Lorenz	boolean operation like this one (holes in a curved surface) don't work well with mesh objects. max's booleans also are can't handle multiple operators very good (lots of holes). the best way would be to do it with solids/nurbs. with autocad or rhino. or even archicad, in case of windows. there are plugins for max for better booleans, power solids and power booleans, but i don't recommend them, since they are expensive and buggy. __________________ Marc Lorenz http://plugins.angstraum.at My 3d gallery at Flickr

May 12th, 2003	#10 (permalink)
Craig Ramsay Moderator Join Date: Aug 2002 Location: Scotland Age: 28 Posts: 741 Name: Craig Ramsay	Plastic have you had problems with power booleans? I have it installed and think it is fantastic, I hardly ever have problems with it :???: Craig __________________ www.shakedigital.com

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