Boolean Problems

Sergio · November 11th, 2003

Hi guys,
I am trying to boolean 7 cylinder and 5 spheres from box object. Am I asking 3DS Max 5 too much?
Please if somebody can help me? I am quite behind because of that problem. BTW I am trying to model one very complicated sealing with dome and vaults.
Regards Sergio!

DelfoZ · November 12th, 2003

can u post a imagen before and after the boolean ?

tnx..

skogskalle · November 12th, 2003

hey Sergio!

If you have a chance to model the sealing in any other way - do it!

MAX booleans suck, (they have allways sucked)thats the sad fact.
(although I read somewhere that they have fixed them for r6, does anyone know?)

anyways... I find that MAX sometimes does a better boolean job if you attach all your subtraction-objects together. That way you only do ONE boolean instead of 12... It doesnt allways work, but since MAX Booleans arent very logical, its worth a try.

/K

Archy@NJIT · November 12th, 2003

Alright,
Yes unfortunatly Max 5 does not always deal with booleans in the best way. However they did cover for it in one way. If you boolean an object, then use the optimize command(can be found under modify). This will allow you an option control the number of faces of the object, as well as the Auto Edge option. Playing with these settings will allow you to avoid those jagged edges. YOu may need to optimize after every time you boolean. I know it doesnt seem like the most practical way to do things, but it actually helps a great deal.

Best of Luck
JM

MegaPixel · November 12th, 2003

For what it's worth, MAX 6 seems to be rock solid with Booleans. I'm getting clean mesh results with no random faces.

skogskalle · November 12th, 2003

"For what it's worth, MAX 6 seems to be rock solid with Booleans"

sweet! too bad I cant afford r6...

but its still good that they fixed it.
I like booleans, but in r4 (which I use) theres simply too much trouble using them.

Maybe they´ll release an update / bugfix for earlier max-versions too?? what do you think?

Sergio · November 12th, 2003

Hi guys,
thanx for all replys!

Unfortunateli, max 6 is not any better for booleans, at least in my case.
There is an image, green marks are surrounding areas where boolean was successful.
Regards Sergio!

skogskalle · November 12th, 2003

mmmkuy...

are you sure you have actually lost your faces? maybe theyre just flipped?

increase the segments on your box... I think it helps if all the faces are about the same size, and you have some pretty small stuff on you subtraction-objects.

DelfoZ · November 13th, 2003

r u booloan 1 by 1 .. ?? ?

Fisrt do what SKOGSKALLE saw " anyways... I find that MAX sometimes does a better boolean job if you attach all your subtraction-objects together. That way you only do ONE boolean instead of 12... It doesnt allways work, but since MAX Booleans arent very logical, its worth a try."
Then do what SKOGSKALLE saw "increase the segments on your box"

i think that have to work...

recon · November 13th, 2003

From the looks of that picture, I'm guessing that the original objects were not completely closed, which can lead to problems.

Can you post a max file of the two objects before the boolean operation?

November 11th, 2003	#1 (permalink)
Sergio Senior Member Join Date: Jan 2003 Location: Johannesburg, South Africa Age: 44 Posts: 131 Name: Srdjan Repensek	Hi guys, I am trying to boolean 7 cylinder and 5 spheres from box object. Am I asking 3DS Max 5 too much? Please if somebody can help me? I am quite behind because of that problem. BTW I am trying to model one very complicated sealing with dome and vaults. Regards Sergio! __________________ We make a living by what we get, but we make a life by what we give!

November 12th, 2003	#2 (permalink)
DelfoZ Veteran Member Join Date: May 2002 Location: Chihuahua,Mexico Age: 31 Posts: 507 Name: Enrique Portillo	can u post a imagen before and after the boolean ? tnx.. __________________ DelfoZ \| DS Citta Nouva http://delfoz.blogspot.com/

November 12th, 2003	#4 (permalink)
Archy@NJIT Junior Member Join Date: Jul 2003 Location: Newark, NJ Posts: 11 Name: Jonathan McCann	Alright, Yes unfortunatly Max 5 does not always deal with booleans in the best way. However they did cover for it in one way. If you boolean an object, then use the optimize command(can be found under modify). This will allow you an option control the number of faces of the object, as well as the Auto Edge option. Playing with these settings will allow you to avoid those jagged edges. YOu may need to optimize after every time you boolean. I know it doesnt seem like the most practical way to do things, but it actually helps a great deal. Best of Luck JM __________________ image is in the eye of the beholder

November 12th, 2003	#7 (permalink)
Sergio Senior Member Join Date: Jan 2003 Location: Johannesburg, South Africa Age: 44 Posts: 131 Name: Srdjan Repensek	Hi guys, thanx for all replys! Unfortunateli, max 6 is not any better for booleans, at least in my case. There is an image, green marks are surrounding areas where boolean was successful. Regards Sergio! __________________ We make a living by what we get, but we make a life by what we give!

November 13th, 2003	#9 (permalink)
DelfoZ Veteran Member Join Date: May 2002 Location: Chihuahua,Mexico Age: 31 Posts: 507 Name: Enrique Portillo	r u booloan 1 by 1 .. ?? ? Fisrt do what SKOGSKALLE saw " anyways... I find that MAX sometimes does a better boolean job if you attach all your subtraction-objects together. That way you only do ONE boolean instead of 12... It doesnt allways work, but since MAX Booleans arent very logical, its worth a try." Then do what SKOGSKALLE saw "increase the segments on your box" i think that have to work... __________________ DelfoZ \| DS Citta Nouva http://delfoz.blogspot.com/

November 12th, 2003	#3 (permalink)
skogskalle Senior Member Join Date: Oct 2003 Location: Södertälje Age: 27 Posts: 376 Name: Kalle Eliasson	hey Sergio! If you have a chance to model the sealing in any other way - do it! MAX booleans suck, (they have allways sucked)thats the sad fact. (although I read somewhere that they have fixed them for r6, does anyone know?) anyways... I find that MAX sometimes does a better boolean job if you attach all your subtraction-objects together. That way you only do ONE boolean instead of 12... It doesnt allways work, but since MAX Booleans arent very logical, its worth a try. /K

November 12th, 2003	#5 (permalink)
MegaPixel Senior Member Join Date: Dec 2002 Location: Indiana, USA Posts: 397 Name: Super Dave Osborne	For what it's worth, MAX 6 seems to be rock solid with Booleans. I'm getting clean mesh results with no random faces.

November 12th, 2003	#6 (permalink)
skogskalle Senior Member Join Date: Oct 2003 Location: Södertälje Age: 27 Posts: 376 Name: Kalle Eliasson	"For what it's worth, MAX 6 seems to be rock solid with Booleans" sweet! too bad I cant afford r6... but its still good that they fixed it. I like booleans, but in r4 (which I use) theres simply too much trouble using them. Maybe they´ll release an update / bugfix for earlier max-versions too?? what do you think?

November 12th, 2003	#8 (permalink)
skogskalle Senior Member Join Date: Oct 2003 Location: Södertälje Age: 27 Posts: 376 Name: Kalle Eliasson	mmmkuy... are you sure you have actually lost your faces? maybe theyre just flipped? increase the segments on your box... I think it helps if all the faces are about the same size, and you have some pretty small stuff on you subtraction-objects.

November 13th, 2003	#10 (permalink)
recon Member Join Date: Apr 2003 Location: san diego, ca Posts: 33 Name: john manning	From the looks of that picture, I'm guessing that the original objects were not completely closed, which can lead to problems. Can you post a max file of the two objects before the boolean operation? __________________ John Manning www.jm3d.com

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