Questions tagged [mesh]

A mesh is a collection of vertices, edges, (composed of a connection between two vertices), and faces (composed of 3 or more connected edges). Meshes are the most commonly used object type in Blender.

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504 views

Modify a single plane mesh to match image based on alphas, create shape keys

My goal is to create the shapes of continents as they drifted from Gondwana to the present day. My proposed approach follows, but I would welcome alternate approaches or comments on this approach. I ...
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How to make a zoetrope out of a single mesh?

Can anyone explain how to go about making a 3D printable zoetrope like those in this video? https://www.youtube.com/watch?v=nom7NiTLrFg Unlike any other zoetrope I've seen, each of these are a single,...
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1answer
178 views

Normal Map only visible on single Shape Key?

Is there a way to make a normal map for facial wrinkles more/less visible with certain shape keys? I've seen something like this on youtube, but I haven't been able to determine how it was done. I've ...
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Is there a low level alternative for bpy.ops.object.convert(target='CURVE')?

(Note: Somebody asked there nearly the same question as me and got a very nice answer. However, this was to convert an object to a mesh. I have exactly the same context as this person but I want to ...
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2answers
783 views

Relative and Absolute shape keys on the same mesh

is there a way to use both relative and absolute keys together on the same mesh ? i want to use absolute keys to deform muscle in a way, and relative to animate face shapes. both on the same model.
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1answer
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ANT Landscape erode option?

I have just updated to Blender 2.79 and was playing around with the updated ANT landscape add-on when I noticed a new option called Landscape Eroder, this has the potential to be really cool but I can'...
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Strategy for script-generating a buckled honeycomb lattice mesh (hex faces) for animating 2D materials?

In this post I show how one can script-generate a square lattice with buckling. By scripting it there's memory of each vertex's identity which can be used later to animate certain behaviors. When ...
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Numpy optimise mesh edges length calculation

To improve my very rudimentary numpy knowledge am going to ask a number of optimise my numpy questions here on BSE Can find the length of each edge in a mesh using ...
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1answer
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Subdivision surface modifier creating lines and stretches on imported SVG

I am having a lot of trouble with just smoothing out a mesh. I created an organic outline through Adobe Illustrator and imported it as an SVG to blender. I converted it to a mesh, extruded it, and I ...
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227 views

Is there a low level alternative for bpy.ops.mesh.separate()?

I am dealing with a great model, I have a problem, I want to divide it by parts, but bpy.ops.mesh.separate(type = 'LOOSE') seems to have a big problem, that is not ...
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How can I properly wrap complex objects?

I'm having problems with the Shrinkwrap modifier. I wanna wrap this dragon on the objects surface. But instead I get this :( I've tried with Curve too... Can anyone help me? Thanks... And sorry ...
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How to define own snapping points?

can someone tell me if its possible to define own "snapping points"? I know the poissibility to snap to Volume, Face, Edge, Vertex and Increment - but what i need is the following: I made a small ...
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541 views

get radius of mesh primitive

I would like to ask whether there is a way of getting the radius of a sphere (mesh primitive) after it has been added. In other words, does Blender somehow distinguish between different shapes? What ...
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How to smooth second derivative of selected mesh?

I have a mesh that I want to smooth by minimizing the second derivative of it, while taking into account non-selected vertices (for the edge condition of this derivative). For example, let the ...
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How to transfer a shape key between different meshes?

As the title says how would I go about transferring a shape key between two different meshes? The meshes I am using have a similar shape and topology (esp. with area that is affected by the shape key) ...
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1answer
735 views

Why are there seams all over the mesh when a Normal Map is applied?

I am making a game asset, so first I made a high poly model and then Decimated the duplicate using the Decimate modifier. Then I baked the Normals of the High Poly model on to the Low Poly model and ...
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1answer
39 views

Apply -1 x scale (mirror) to object mesh and keep custom normals with python

I have meshes with custom face normals but they should be mirrored in the X axis. They are not perfectly symmetrical so I have to apply -1 to x scale. As I apply the scale with ...
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1answer
36 views

Control a cylinder mesh with multiple curves?

I want to control different parts of a cylinder with curves, so that different parts of the cylinder can have different intersections, controlled by curves, regardless of how the curves are scaled. I ...
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0answers
29 views

Viewing “Layers” of an Imported Model

I downloaded a free .obj anatomical model that I imported but I am unable to relate to the different systems of the body. It just looks like the external mesh, but it is supposed to have veins, ...
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0answers
125 views

tensor flow / deformable grid

I am trying to make a grid that i can deform, by adding points that acts like a magnetic field. Is it possible to create a grid that i can manually/auto deform like this? I need it to be one ...
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1answer
90 views

Rotating particles in two different axis

I'm having some trouble randomizing these particles on top of my cylinder. My goal is to randomize the orientation of my particles with respect to the object's y-axis, which makes the particles stand ...
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0answers
291 views

Unsure about use of matrix_world

Some Context I have a computer vision task where I have to generate some synthetic data from rendered images of a 3D model(liver). So to do that, I have first to generate a bounding box around that ...
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0answers
90 views

What is mesh - is it a collection of linked geometry or all mesh data inside of the mesh object?

I'd like to know if there's any consensus on naming mesh data as part of the mesh object. For example, if one takes a monkey object (suzanne), it consists of 3 chunks of linked geometry - 1 monkey ...
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Cycles and EEVEE strange polygon problems

to the point: Why are polygons visible when rendering on cycles (Attention to the wheel), but not on eevee? hdri is same on both renders. The wheel has a smooth shade. In solid mode, everything is ...
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103 views

Is there a “Clone Stencil” for Sculpting a Surface from a Target Area Onto a Destination Area?

As you can see in the screenshot there is a rough surface on the left side. My goal is to apply a similar surface to the right side, where the mesh is smooth. How can this be achieved? Is it possible ...
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How can I model this Body in Blender?

Hello Blender Community, I am new to Blender. In the past, I only used CAD Programs (Inventor, Fusion 360). Because of the Rendering and Animation, I try to recreate my models in Blender. One of my ...
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1answer
399 views

Normal Problem in Unreal Engine

I have applied scale, recalculated normals, properly unwrapped my models, but no matter what I do, when I export it, and open the model in substance painter or UE4, the normals are all messed up. The ...
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1answer
643 views

How to export Bone Weights?

I am editing the default OBJ exporter of Blender (io_scene_obj) to create my own version which supports bone weights, for skeletal animation. I now know how to access the bone weights per vertex in ...
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644 views

How to merge vertices without affecting custom split normals?

I have a model with some split edges that I want to merge: Both vertices and edges are duplicated along the selected edge loop. You can see the duplication in there being two vertex normals (blue) at ...
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880 views

Smoothing shrinkwrap result

I'm trying to wrap a plane around the stl of a city, in order to obtain a watertight geometry from a poorly defined base file. Shrinkwrap is pretty awesome for that, but I'd like to improve it ...
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3answers
167 views

Is there any way to offset curve and filling space between with mesh to make a ring?

I'm trying to make some curved rings in Blender with realistic height and width and look as shown below. Can anyone suggest a way to do it?
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70 views

Shell based deformation in blender

Is it possible to do in blender a "shell based deformation"? Basically given a mesh I want to pull few points and distort the whole mesh in a way that curvature due to distortion and pulling is ...
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Slide vertices based on angle of adjacent edges

I want to extrude a boundary edge such that angles between any given newly generated perpendicular edge and the edges on either side are equal. That is, I want to do this: The gif was accomplished by ...
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How to convert .obj to .stl in blender via python script

I want to convert .obj to .stl in blender via python script.Here is my code. ...
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2answers
1k views

How to remove unlinked/disconnected parts of a bigger mesh?

I have many meshes like the one shown below which have some faces/vertices that are not connected to the main mesh. I use these meshes for physics simulation. As result of these weird parts of the ...
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302 views

How to fix high valence vertex?

I discovered a vertex on my mesh with 6 edges connected to it. It is causing problems with smoothing. How do I solve this problem without deforming the mesh?
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615 views

How do I fit these clothes onto my base mesh?

So I have this mesh that I've already rigged, and I want to add clothing to it. But, the clothing I downloaded from a mesh-sharing site doesn't exactly fit my mesh: Do I have to modify the dress ...
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365 views

Avoid converting to tris when preparing file to 3D print

I created a low poly alien in blender and wanted to print it exactly the way I created it. It's modeled in quads which are converted to tris when exporting the stl. I know stl works with tris but it ...
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0answers
92 views

Extracting 3-d forms for producing organic shaped model from various flat parts

I am a carpenter. Looking for a way to build organic shapes and curves in 3-d rendering that we can then extract 3-d pieces to understand the geometry required to build the form from multiple pieces ...
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1k views

Calculating / Estimating the normal at any location on a face

In a recent answer I employed Object.ray_cast which returns the location and normal of a ray hitting a face. The normal is needed to calculate the rays reflection, ...
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792 views

Remove intersecting geometry from multiple objects

This is kind of hard to explain using words. Basically, I want to remove the intersecting part of a model for both objects. Sort of like the exclude function in Adobe Illustrator's pathfinder panel, ...
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2answers
457 views

Rigging, moving feet affects the main body

I'm trying to connect the armature to the feet of my model, but I want the feet to be able to move without affecting the main body in anyway, similar to how Kirby walks. I tried assigning the ...
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0answers
2k views

How can I prevent overlapping when using Solidify Modifier?

I have used the Solidify Modifier tool on my object (choker) which appears to have caused overlapping at the centre. Lowering the thickness has helped but it does not prevent the problem. The image ...
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293 views

Relink renamed mesh

I've linked object with mesh from external "asset" blend file. Then I've decided to rename mesh there as I was cleaning up names. Is it possible to quickly relink mesh in main file? It's no problem to ...
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912 views

How can I edit a vertex's index order

I need to create a few meshes where vertex index order is important. I am trying to write a script as such: ...
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0answers
116 views

Mesh modifications are shown in viewport but not rendered

Usually I use Processing and Java for my graphics, but I thought it would be nice to try out some Blender scripting because I really like the quality of the cycles render engine. I am currently ...
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0answers
620 views

How to move a mesh to an exact location

I have a body model where the fingernails are separated from the hand, and I was wondering on how I would go about on accurately connecting them. Like, is there a way to snap the fingernails to the ...
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65 views

Is proportional 3D weighted decimation on cubic objects possible?

i´ve been thinking the last two days how to calculate this problem with blender, maybe im stupid and it´s simple. i need a specific decimation calculation to transform blue into green img.A img.B ...
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429 views

Mesh for each keyframe

Through the usage of a simulation framework, I have for each simulated time step a mesh (.ply format). This results in a collection of meshes. They represent an object deforming over time with each ...
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65 views

How can I use cell fracture to a limited section of the mesh?

I want to fracture a mesh to a limited section. It is shown in this sketch: How can I control the width of this section and how can I let the top and the bottom of this mesh unmodified? How can I let ...

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