boolean - Strange behavior
8978 15 2- kurisutofu
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Hello,
I'm trying to use booleans to create a geometry but it is not behaving as I expected.
I have a normal grid that I'll call A and a cross-shaped grid that I'll call B.
I'd like to do a boolean operation A-B so a cross-shaped “hole” would result in the object A.
Then I'd extrude the result where the hole would be more distinguishable.
However, the boolean creates a strange shape for the cross-shaped hole … Is boolean not working for grids? Should I extrude first before?
I'm trying to use booleans to create a geometry but it is not behaving as I expected.
I have a normal grid that I'll call A and a cross-shaped grid that I'll call B.
I'd like to do a boolean operation A-B so a cross-shaped “hole” would result in the object A.
Then I'd extrude the result where the hole would be more distinguishable.
However, the boolean creates a strange shape for the cross-shaped hole … Is boolean not working for grids? Should I extrude first before?
- kurisutofu
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- EigenAlex
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- kurisutofu
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- kurisutofu
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- fsimerey
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I think your problem comes from your object A. In your capture, we can see the circle seems not be fused with the other part. The normal of circle is in his center and not in the middle of the half circle…
Like for all 3D software, booleans operations need some very clean objects.
If you attache a file, we could be help you.
Like for all 3D software, booleans operations need some very clean objects.
If you attache a file, we could be help you.
- kurisutofu
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fsimerey
I think your problem comes from your object A. In your capture, we can see the circle seems not be fused with the other part. The normal of circle is in his center and not in the middle of the half circle…
Like for all 3D software, booleans operations need some very clean objects.
If you attache a file, we could be help you.
I merged the grid and the circle with the merge node, should I use something else? I try to use a cookie but was not cleaner …
Once back home, I will put the file if it's not too big.
Thank you!
- fsimerey
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Merge isn't fuse your geometry. So you need have for both, A and B, clean geo.
You can do that either by a cookie SOP (boolean) to create A and B or create your geometry like it could be before merge them together.
For example, use an closed arc circle and not a closed circle and merge + fuse them.
Remember Fuse SOP proceed on points, so your grid used for A must have equals points on his edge than the closed arc. SO simplify your grid by setup row and columns by 3.
You can do that either by a cookie SOP (boolean) to create A and B or create your geometry like it could be before merge them together.
For example, use an closed arc circle and not a closed circle and merge + fuse them.
Remember Fuse SOP proceed on points, so your grid used for A must have equals points on his edge than the closed arc. SO simplify your grid by setup row and columns by 3.
- fsimerey
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- fsimerey
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- kurisutofu
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- kurisutofu
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- fsimerey
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- kurisutofu
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- fsimerey
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- kurisutofu
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fsimerey
You're welcome kurisutofu. I hope you will appreciate more and more Houdini. The most difficult is the beginning, but when you will understand the philosophy, you can't return on another package
And the last but not least, Houdini's community is a great one.
I almost gave up but then it's free so I tried a little harder … and I find it good for beginner who can change things quickly thanks to the procedural design.
Plus, I'm a programmer so I find it easy to understand.
It's just that I need to check all the nodes like the circle for example, which I didn't know we could set as open/close arc … Thanks to you, I know that now ;-)
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