Geometric representations of objects in 3 dimensions. 3D-meshes are made up of a collection of triangles or other polygons, forming volumes and surfaces. They are commonly used for visual representations on computer screens.

learn more… | top users | synonyms

-1
votes
0answers
30 views

How to match orientation and scale for similar meshes?

How can I change the orientation and scale of a mesh to match those of another mesh that is 99% similar? I have 2 meshes. One is a photoscan with hole in the chin and noise on the forehead, and the ...
1
vote
0answers
45 views

How to extract the texture from an image onto a mesh?

(preamble: I think this fits either here or SO with computer vision tag, I chose gamedev because I think you guys are probably really good with textures and meshes, but tell me if my decision was ...
0
votes
1answer
32 views

Unity only rendering certian parts of 3d building model from certian angles

So I made a couple modular building sections in blender, modular in the sense that I can insert build a floor at a time. I transferred them into Unity and then I got a rendering error that I have ...
0
votes
1answer
85 views

OpenGL multiple mesh management

I've been working on coding a new 3D engine in Java. For the moment at least I'm sticking to openGL... Currently I'm reworking how meshes get transformed and then drawn. ATM each mesh created has ...
1
vote
1answer
34 views

How to quickly create meshes that have cutouts of other meshes?

I have a mesh and I would like to quickly create planes (or boxes) that have cutouts in the shape of the silhouette that mesh, but rotated at various angles. I would like to have a system to which I ...
1
vote
1answer
66 views

How to make a textured tree model outside of unity that can be used in unity

So I am trying to make a 3d model of a tree that is textured that can be used in unity. So far I have tried two separate ways to do this and they both didn't work. The first time I used blender's tree ...
0
votes
0answers
24 views

SharpDX draw 3Dmodels?

Hi i have resently started game development just to expand my programming skill from systemdevelopment. And i gave sharpDX a go, i like how the frameworks are built sinse they resemble xna. My issue ...
0
votes
0answers
34 views

Loading skinned mesh - initially rotated bones, how to set the weights?

I have an mesh that I've exported from 3ds max to my own file format. I use the left-handed coordinate system with Y up and the orientation is expressed as quaternions (both for models and bones). ...
0
votes
1answer
87 views

Is topology of procedural meshes important?

I've been working on a project which involves generating 3d game models, mostly hard surface ones, procedurally. Do I have to worry about keeping the topology clean? Will topology affect texturing, ...
0
votes
1answer
110 views

Character Models: Single Mesh vs. Individual Parts

I was looking up 3D character models from various games (Battlefield 3 and DMC to be specific), just as research work and upon importing the model into Blender3D, I found that every part of the model ...
0
votes
0answers
82 views

UV Mapping Best Practice for Architectural 3D Assets?

What would be a commonly preferred method of UV mapping for architectural 3D meshes that are being used as game assets. What I'm talking about are segments like walls, floors, ceiling, corners, etc. ...
0
votes
1answer
128 views

How can I implement procedural humanoid generation like MakeHuman?

Some applications allow you to generate a human mesh by simply adjusting parameters. The results are broad and convincing: you can get from a thin asian girl to a muscular african man by just ...
0
votes
0answers
85 views

Using modo for Unity level modelling?

Is anyone using modo for modelling level meshes for Unity here? I'd like to know how to set up modo so that I can use the grid in modo and it will reflect 1 meter. I've set in modo preferences Unit ...
0
votes
0answers
43 views

Is there any reference table or formula of body proportions for procedural human mesh generation?

I want to generate humanoid robots procedurally with different shapes and ages, example: 20 years old fat short man, 13 years old thin young girl, and so on. In order to be realistic, I'd like to have ...
0
votes
0answers
37 views

Color from OBJ not displayed in Blender

I want to import some .obj file that I have made with MeshLab. The point cloud file was actually in .pcd format and I used pcl_pcd2ply tools from PCL to change it into PLY-Format. Then I import it ...
1
vote
1answer
51 views

Algorithm that cover one mesh by another mesh

Suppose I have two meshes (Let call me first MeshShirt and second - MeshBody) Meshes are aligned (if i render both MeshShirt "covers" MeshBody). But some parts of the body are not "under" the ...
0
votes
1answer
23 views

MD5Mesh Calculate Vertex Normals

I am writing an MD5 3D model loader to display animated models. The vertices and texcoords load in correctly, but the lighting is supposed to be smooth. I calculate per-vertex normals by looping ...
0
votes
1answer
111 views

Given seams, how do I unfold a mesh?

If a user marks a seam on a mesh, how do 3D modelling programs (like Blender or Maya) unfold the mesh on to a 2D surface? I can only find papers trying to automate the seaming for you. Given ...
2
votes
2answers
94 views

MeshParts - Why do they exist?

For my current game I'm working on I've decided to implement a custom model class to store my models in. Reasons being is that I want to make adding new models as painless as possible for the rest of ...
0
votes
0answers
28 views

How can you duplicat folders and not share old dependencies in Unity?

I have a folder with some prefabs, materials, textures, FBX, etc. My Prefabs refers to FBXs and Materials in this folder. Can I clone this folder in a way that it will save those local dependencies? ...
5
votes
2answers
596 views

Road network geometry in Unity: one big mesh or a bunch of smaller meshes?

I'm in the beginning stages of building a road system in Unity. It'll be your basic SimCity style road construction, with building and destroying roads done on the fly at runtime. When doing thing, ...
1
vote
1answer
249 views

Looking for a full featured C/C++ UV Mesh Unwrapper [closed]

My first question! Is there an open source C++/C piece of code easy to integrate to solve the UV Unwrapping of arbitrary meshes out there ? I would like to use it to build a light mapper or similar ...
2
votes
1answer
124 views

Work flow for modelling a city(open world)

This seems like a massive task, do each individual building/object have to be modeled individually. If so are the model imported into the world editor and places accordingly. Or are other techniques ...
0
votes
1answer
80 views

3ds Max Biped Scale Restriction

I have a 3D Model under 3ds Max and I'm trying to integrate a biped skeleton. But when I start to adjust the pelvis or any other bone I can't scale it. I don't know why, and this is driving me crazy. ...
1
vote
0answers
71 views

LibGDX mesh silhouettes

How could I find out the silhouette edges of a mesh in libgdx? More specifically, how could I produce shadow volume geometry using the Mesh class of libgdx?
4
votes
2answers
317 views

How can I find the “end” vertices on an open-ended mesh?

I was looking at a video of a system that extrudes meshes along a curve, connecting them end to end but adjusting the vertices for a smooth connection. It does this with a mesh that as far as I know ...
2
votes
2answers
321 views

Unity: how highlight effect should be applied to terrain mesh

I have my game generate random voxel terrain, and then generate a mesh on only the visible parts of that terrain. I want it to be able to select some part of the terrain with the mouse, but I'm not ...
0
votes
1answer
64 views

Applying textures to 3D models

I want to apply textures to a 3D Model in XNA 4. Whatever I saw on the internet was to apply the textures in the modeling tool and then load the model (*.fbx) into XNA. Is it possible to load the ...
3
votes
1answer
1k views

How can I create or extrude a mesh along a spline?

Let's say, for example, that I have a working spline. I want to use this spline to create a mesh, but I'm not quite sure how to go about it. For example, I want to create a road along this spline. I ...
0
votes
1answer
186 views

Convert triangles to quads of a Mesh

Supposing I have applied delaunay triangulation on a convex mesh, and I have all information (edges, vertices etc.) I would like to transform the triangles to quads I was reading that inverse ...
2
votes
1answer
197 views

Mapping a 3D texture to a standard hollow-hull 3D model

I have 3D models which are typical hollow hulls. If such a model also had a 3D volumetric/voxel texture map then given a point P inside such a model, I'd like to be able to find its uvw coordinates ...
1
vote
1answer
82 views

Why isn't the bitangent calculated?

In teh tangent space vertex attributes why is the bitangent (aka binormal) provided as an attribute instead of calculated? If the three vectors of the tangent space must be perpendicular then the ...
2
votes
2answers
620 views

3D position to UV coordinates in fragment shader

I am interested in converting an arbitrary 3D position computed at run time in the fragment shader to its corresponding UV coordinates. Notice that the 3D position I am interested in is NOT a 3D ...
1
vote
3answers
1k views

In Unity, how do I dynamically manipulate parts of a mesh?

I'm trying to achieve mesh manipulation of any mesh based on user input (mostly sliders). Here's an example of what I want. I am not sure whether to call this "morphing", as I am trying to change one ...
0
votes
2answers
150 views

How to draw non-triangulated mesh?

I am working with DirectX (C#/C++). I am wondering is it possible to do not triangulate meshes and what the difference between cases (in loading and rendering code)? If so, how to do this? I know ...
2
votes
2answers
158 views

Materials and Mesh association

I'm trying to implement a Material system in a small engine for training and I've got questions about materials. Currently I've got that: Material: A Material with array of Technique Technique: ...
1
vote
1answer
102 views

Can you export lighting models directly from 3D application to a real time renderer?

is it possible for example to insert lighting in a 3D Model software like 3DSMAX and export an animated model like md5,..etc. and export the lighting too ?
0
votes
2answers
130 views

How do I connect my objects to my meshes?

I am creating a simple 3D engine and I've run into a problem. I have an array of objects [Camera, Player, Player, MonsterA, MonsterB, MonsterA] and a number of mesh files that I need to associate ...
2
votes
1answer
104 views

Optimising meshes

The game MegaGlest uses a MD3-like mesh format, which is keyframe-based vertex animation. One of the challenges moving forward is to continue to support lower-end hardware. We know some users have ...
2
votes
2answers
182 views

Angle between two planes

I have two triangles in 3d space which share 1 edge and I would like to determine if the angle between their normal vectors is "uphill" or "downhill". In other words, if you set one flat, would the ...
4
votes
1answer
1k views

Quads Vs Triangles

I'm curious to know which is better for games? Quads or Triangles? Wouldn't quads be better for rendering performances and smoothing out tessellation?
2
votes
0answers
54 views

Blender: Setting additional properties per face [closed]

I wish to use Blender to model level for 3D game. Level is a set of Meshes. I have to set special (additional) properties per face (triangle). These properties are like integer number or vector or ...
1
vote
1answer
556 views

How to generate AABB, OBB & Sphere from polygon soup

How can I generate AABB, OOBB and Sphere from a polygon soup, where the bounding volumes are defined as follows: AABB should be specified by min(x,y,z) max(x,y,z) OOBB should be specified by ...
0
votes
1answer
381 views

Problems with 3D Array for Voxel Data

I'm trying to implement a voxel engine in C++ using OpenGL, and I've been working on the rendering of the world. In order to render, I have a 3D array of uint16's that hold that id of the block at the ...
3
votes
1answer
76 views

Armature rest matrix - why does this exist?

I'm not sure I have a clear idea on what purpose the rest matrix/bindpose is supposed to serve in skeleton animation. If it is supposed to transform a bone into the rest pose and the mesh itself is ...
0
votes
2answers
1k views

Unity Mesh and Collider not aligned on rotation

I have a GameObject with a mesh and a collider. When I rotate the object the mesh and the colider do not act the same way and when the GameObject is rotate 65 degrees on the z axis the mesh and the ...
3
votes
1answer
364 views

What's the proper way to set up a texture atlas in Unity 3D?

I am using Unity3d (free) to make a game with user-defined content (i.e., load in a map, it'll build the level for you). Everything is working as expected, except for the rendering. Note the ...
2
votes
1answer
143 views

Light is not spreading evenly

I am using SunBurn for lights and rendering, when i create sceneobject in code, effect is like this see in this light is in the middle so sceneobject in middle is well lit and as we go to corner ...
1
vote
5answers
524 views

Drawing transparent and opaque 3D objects. How do I preventing z-fighting?

I am using a transparent weighted average algorithm to draw my transparent objects. The transparent object is drawn with the following notable render states (the rest are default XNA values): ...
4
votes
2answers
905 views

Building triangle adjacency data

Given a list of triangle indices, how exactly does one go about converting that to a list of indices with adjacency for a geometry shader? Note that we're strictly talking about indices here - ...