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.

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Boolean Modifier Issue

I'm experiencing an issue when applying a boolean modifier to my mesh. I've tried subdividing, I've tried checking the normals of everything and they all are facing outward (verified by the blue ...
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Different Shade after Boolean Union [duplicate]

for a project in my university I am working with school kids on flower models that are going to be printed. The kids have already modeled all the flower components and are using the Boolean Union ...
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How to change object geometry over time in the same model from the command line?

I'd like to write a python script can change (not delete and re-create) the geometry of an object AFTER the initial object has already been loaded by blender. To clarify, here are the 3 basic steps: ...
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I need help measuring MIN and MAX diameter of an eliptical shape

I'm pretty new to blender, what brought me here is that I'm working gon a project in which we're looking for a simple way to measure 3d cuts of a body scan, in order to identify spine deformations in ...
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23 views

How to create hexagrid in Blender? [duplicate]

I'm searching for a solution that allows me to create an hexagrid Mesh like that: Any idea ?
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What does this icon mean ? and How can I erase it at once?

Is this need ? And How can I erase it at once? I can not select all by shift + click in list.
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Smooth transition between two edge loops

I've inherited some STL files for a device enclosure (meant to be 3D printed) that I need to alter. It contains several standoffs (posts for mounting circuit boards) that transition smoothly into the ...
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1answer
29 views

Inserting extra vertices / triangles to give the model more geometry

I have a lo poly model. I would like to give it a bit more geometry here and there. This is a screenshot of what I would like to achieve: The left side shows the "original" object. On the right ...
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3answers
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Exporting a shape made out of quads results in hexagons in obj file

I made some sort of furniture by taking the default cube and insetting some parts of it and splitting(subdividing) it here and there. Then I add a bevel modifier with 1 segment. A view of the model, ...
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22 views

Extrude face along normal, following connected edge (extend geometry)?

I want to extrude a face in Blender along its normal, but I also want the vertices to follow their connected (but not selected during the extrusion) edges. This means that the vertices would move ...
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66 views

How to render this style of geometrical objects

Referring to http://www.cs.cmu.edu/~kmcrane/Projects/DGPDEC/paper.pdf The document includes numerous geometrical object that are illustrated in a very particular style that is appealing. Can this be ...
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Real displacement issue

i am having this weird issue where the displaced geometry has an offset from where the mask is, the mask works very well on the bump node but with displacement i get an offset no matter the amount of ...
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25 views

What is the Difference between Displacement Node Normal Node and displace modifier?

The Displacement node doesn't seem to be much different than a normal map, where as the displacement modifier will actually effect the geometry. Am I missing something here, is there a difference in ...
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Need help adding a glint/translucency/transparency to my diamond material in Eevee

Mkay, basically after a lot of googling, looking up materials guides, straight up borrowing from other people's tutorials on how to make a decent diamond material, I've ended up with this: Now, I am ...
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Easiest way to patch planar holes

I have a 3D textured reconstruction of a room which, unfortunately, has some holes. I can manually align a plane to this wall. Now, I have 2 issues here: How can I merge the plane with the ...
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1answer
55 views

How to lessen geometry of an object during animation

I'm using Blender 2.8 to animate the growth of a curve that is beveled using python and Animation Nodes 2.1.4 (running Ubuntu 18.04 64bit) The animation generates about 2.6+ million vertices and ...
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strang jutting mesh glitch upon camera/rig movement

im not quite sure how to describe this but after using rigify and tweaking the weight paint on this model i've been getting flashes of geometry jutting far out. its difficult to stop the movement in a ...
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58 views

Generate geometry using geometry shader

I have some points which represent polylines. I want to convert this polylines into geometry for which I am creating a curve and an object containing this object. ...
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31 views

How to evenly space vertices along an ellipsis-loop without changing its profile

I have a number of loops that define the profile of sections of a fuselage (used a cylinder primitive). As you can imagine, these sections are varying sizes by design...most are slightly flattened ...
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2answers
49 views

How to fix model after subdivision surface mod?

1) How do i fix those 4 holes after subdivision mod / loop cuts, edge split and bevel mod doesnt help either 2) And also how to fix whole model after this mod so it will look smooth and clean without ...
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Bevel modifier geometry issue

I'm having some difficulties with the bevel modifier in blender. I am trying to bevel edges using a vertex group. In the picture is the geometry with the vertex group selected. When applying the ...
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Is Blender appropriate for learning Stereometry (a subject in mathematics)?

In some countries, senior high school students are still taught about Sterometry in which we are asked to draw a cross section between a solid and a plane, for example, as follows. Shortly speaking, ...
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308 views

is it possible to change a material depending on whether it is intersecting with another object?

Let's say I have a sphere, halfway intersecting with a cube(which is invisible to the camera). I want to change the material of the part of the sphere that is intersecting with the box, similar to ...
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1answer
32 views

How do i obtain a more rounded edge

I'm trying to trace and image with vertices but the rounded parts come out misshapen or oblong-ish. I've also done this shape in a more freeform fashion giving me excellent results, but there's more ...
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1answer
46 views

What is a non-manifold vertex?

I am experiencing a lot of issues with the topology of a specific object I am modelling. Currently I have an issue with 'non-manifold vertices on it as shown by the screen shot below: The mesh issue ...
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Non-manifold face

I recently resolved a non-manifold issue as detailed in my answer here, but I have now made another issue for myself which I cannot seem to resolve. I have been trying to reduce the amount of ...
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1answer
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Specific vertices shoot off in random directions when bevelling

I am currently trying to create a basic wheel-like shape to test out blender and work out some of the key shortcuts on Mac. I am encountering an issue when I try to bevel specific edge loops, please ...
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1answer
138 views

I can't change the parameters of a primitive after creating it in Blender 2.8

In Blender 2.7 you could achieve it like that: How to edit Parameters for an Object after it is created? In Blender 2.8, when I create a cylinder for example I see the window to change the parameters ...
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673 views

How do i twist two objects together

I'm trying to do a candle stand which has two twisted pieces merging together, how do i take my ]two twisted pieces and then twist those around one another?.
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Cannot stabilize the camera to cover an entire scene of an interior model [duplicate]

When i model a house or a room camera cannot cover the entire scene. I have already tried adjusting the resolution. how can i enlarge the camera or make the scene a little smaller?
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49 views

Aligning a grouped object on the global axes

A similar question like this one exists already, but this one is much more specific. I have uploaded a model here. This model consists of 2 meshes. I have used an Empty to group them. I want to ...
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1answer
34 views

Extruding mesh with holes creates weird artifacts

I created slits in my chair mesh by subdividing then deleting faces. I wanted to a little thickness to the chair by extruding by normals. However, it created these weird artifacts. Cleaning up the ...
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86 views

Where is “Align with view” for new objects in Blender 2.8

I'm trying to follow a short video. In this video, the user creates a new plane and then checks "Align with view" in the "Add" panel: I don't see this "Add panel" in Blender 2.8. How could I ...
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1answer
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Applying Transform for Group resets rotation

I have 3 items. They are grouped under "Group001". I want to rotate the group so that the object appears aligned with the axes. To do that, I edit the rotation of "Group001". Then I want to make it ...
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4answers
72 views

Rotating an object according to geometry

I have purchased a model. This model is rotated for a promo rendering. I have tried to rotate it to a zero position manually, but I find it both time taking and just not perfectly accurate. Does ...
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Separating models

I have purchased a FBX / OBJ file. Unfortunately it's not really separated. It seems to be the same model in different "poses". When I delete just the "inlay" object (the foam like object that is ...
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1answer
22 views

Any Idea how to get rid of those shading issues?

I am currently working on a knife but get some weird shading on the Blade. I am using a edgesplit modifier with sharp edges on the model. I think the cause of the problem is that on the one side the ...
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Material keeps apply to more than one face but not others?

I was able to add material to the camera and speaker holes but when I try to add that same black material to the screen that will surrounded by the white it applies it to the whole front side? Not ...
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2answers
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Using existing topology to model details and grooves

I'm trying to model the Five-Seven handgun, which as you can see in the image below has some grooves running along its handle. So far, I have blocked out the lower part and am trying to add in ...
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1answer
230 views

how to use displacement node in 2.8

yea this seems super basic but it just isn't working. i've used displacements before and they've worked fine. set feature set to experimental in cycles, switch the material to displacement or both, ...
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1answer
76 views

Geometry distorting in Camera View

I was doing a YouTube tutorial called Easy Soft Body Simulation and ran into an issue where the plane that I set up for the background is distorting in camera view. It's a very simple set up with one ...
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15 views

Do any filetypes lose geometric data?

I want to know if there are any file formats the lose geometric data (exact location of vertices, UV maps) when saved so that I can avoid them. I'm guessing .dae, .fbx, .obj, and .ply should be ...
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How do I merge triangle faces [duplicate]

How do I merge these three triangle faces, which are all on the same plane, into a single pentagonal face? Thanks!
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Blender skips some un-do's

Has anyone ever had Blender skip an undo?. What i mean is. I accidentally pulled out some geometry on a mesh and when i did the un-do command it left the geometry pulled out but went further back with ...
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21 views

How to geometrically simplify a door which contains creases?

I downloaded a high-quality door from an online source and this is what it looks like: But when you examine in wireframe view, there's a lot of edges/creases: I tried changing the ...
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How do you know what will make the boolean modifier work?

The green mesh and the blue mesh are identical except the green one started out as a 3mm diameter cylinder and the blue one started out as a 6.5mm diameter cylinder. I hate to say it this way because ...
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349 views

Is there a way to calculate mean curvature of a triangular mesh?

So I've written a script which does this: Before: After: The code is: ...
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229 views

Material view in sculpt mode doesn't show material

I've been working with Blender for several years now, and I am wondering how to use a material in sculpt mode as a guide for how the mesh looks while I am sculpting it (not matcaps). Right now, all I ...
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1answer
99 views

Trim Sheets are they possible in blender?

Can trim sheets be made in blender?. And if so does anyone know of a tutorial on them, the ones i have come across all seem to be for 3DS Max.
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Can't Import .STL Files When in Binary Format

I keep running into a problem when dealing with some .stl files which are generated in binary format (There is no other option for the export setting on this digital 3D microscope). When I choose to ...