Blender Stack Exchange
Blender Stack Exchange

Questions tagged [geometry]

Questions pertaining to creating, generating or editing an objects geometry. Object geometry is defined by editing and creating the location and rotation of vertices, edges, and faces.

1134 questions
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Set origin to geometry center

I would like to center the origin on the geometry. How can I do that ? I've tried with 'Origin to Geometry' but it doesn't seems to work correctly. Indeed, on the screenshot, we can see the origin is not exactly centered along the Z axis. Thank you…
user11342
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How do you create a triangle pattern in a plane?

I want to create this picture, except going on for the entire plane, and just the geometry, not with multiple shapes. Is there a way to do this? (not with the going over lines)
Clobro
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How is the normal direction determined when I use "Make Edge/Face"?

Very often I'll delete faces, simplify things a bit (dissolving unnecessary vertices) and make faces again by selecting vertices and using the "Make Edge/Face" tool F. Sometimes the generated faces are in the wrong direction, i.e. normals pointing…
Alvin Wong
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How to get the final volume & area of all selected objects (ignoring some faces)?

The 3D print toolbox currently only outputs the volume/area of all faces. How can I get the volume of selected mesh objects, ignoring certain faces? Asking on behalf of a user who mailed me.
ideasman42
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How can I view the perspective projection of an arbitraryy shape onto the plane below?

I just can't find the Blender way to do this. I have two objects (cubes) at a given height above a plane. These two cubes are 5cm apart, say. How can I view the perspective projection of these cubes onto the plane below? I tried Shrinkwrap but it…
user1301295
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Wrap Geometry Around Mobius Strip

I have a geometry which is an extruded, rectangular plane with features on it, which I would like to wrap it around itself with a half twist in the way a mobius strip is constructed. Something similar to this: How would I go about constructing such…
0xcaff
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Ngon on the top of the cylinder

Should the ngons on the top of the cylinder be avoided or not?
Eneary
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What's wrong with the default cube?

Just for curiosity... From time to time I see a tutorial where the default cube is deleted and recreated. We are supposed to understand why as this comes with no explanation: Source, at 1:20 Source, at 0:30 But actually I don't know the reason for…
mins
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How to make a golden isosceles triangle spiral/fractal, and its associated scaffold, with iterable depth?

Any way to control the fractal depth while having both the spiral and the triangular scaffold as separate objects so that they can be manipulated together or separately. I'm interested in this exact shape.
t8ja
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How to vertex slide outwards?

How can I extrapolate a vertex/line along its tangent, as in the gif below?
Gunty
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Measuring complex 3D mesh volumes in Blender

How can I obtain the volume of complex objects, in such a way that it can be used in a driver? Example:
Raditya Raksi
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How do I remove a separated object?

I am trying to follow along with this tutorial. I had to put its speed to 0.25 to be able to view it. In this tutorial it is shown how a cube is separated by selection, and then some part is deleted. I have taken some screenshots: I could replicate…
tmighty
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Is it possible to calculate the center of an incomplete sphere?

An in-Blender solution would be preferred so I don't have to switch programs, but other tools are welcome too. I'm testing out face rigging via Blender's built-in Rigify plugin, and it suggests defining a pivot based on a spherical shape. However, I…
Nintendraw
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How to efficiently merge geometry and get rid of internal shapes, etc?

I have this object: Think of what i'm doing as using prefab sections that are arranged to form shapes. I know how to snap and rotate. I'd like to be able to do a simple 2d Union of coplanar polygons, can anyone show me how. Is there an add-on…
Somatic
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How do I remove redundant triangles?

I finished creating my mesh, and one of the faces looks like this: But then when I export it, instead it ends up looking more like this: Now, I'm aware that this face is not really a rectangle and Blender provides a convenient layer of abstraction…
mike glenndale
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