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.

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3answers
380 views

What name (if any) applies to this particular 3D rendering technique?

Is there a name for this technique where when instead of rendering certain polygons, you just calculate a few key points and do the drawings in 2d? For instance, instead of rendering a sphere, you ...
1
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2answers
1k views

BoundingBox created from mesh to origin, making it bigger

I'm working on a level-based survival game and I want to design my scenes in Maya and export them as a single model (with multiple meshes) into XNA. My problem is that when I try to create Bounding ...
2
votes
2answers
1k views

Importing FBX with multiple meshes in UDK

I need to import into UDK a several amount of FBX models (representing buildings) which are composed by various submeshes (walls, windows, roof...). I need to keep the individual meshes (can't use the ...
3
votes
2answers
649 views

What is a decent polygon count for minimal spherical objects?

I am creating a model pack for a game and I am having a hard time deciding how many sides I should start with for the low poly props made from cylinders and spheres. Take an apple for example. I want ...
5
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4answers
422 views

Where can I find free or buy “next-gen” 3D Assets? [closed]

Usually I buy 3D Assets from sites like turbosquid.com or similar. My problem is that I have lately implemented glow, normal maps, specular (and specular power) maps and reflection maps and I can't ...
4
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1answer
6k views

How can I see the height of an object within Blender?

I'm fairly new to Blender. I know there is the "Transform" section in the Object menu of the Properties tab, which contains Location/Rotation/Scale of a selected object. What I'd like to know is if ...
5
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4answers
4k views

C/C++ code to generate texture coordinates for a curved surface

I have a triangular mesh of a surface curved in two directions, e.g. a sphere. It is therefore not possible to roll this surface flat (essentially specifying a mapping to U,V texture coordinates) ...
3
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1answer
269 views

Should I use different object types for different kind of 3D meshes?

well... I'm building the animation system of my game engine (the skeletal and skinned animation stuff), and I came to a point where I added so much functionality in the frame and node structures ...
0
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1answer
656 views

What is the difference between the marching cubes algorithm and metaballs?

After doing some research, I found out about the marching cubes algorithm and "metaballs". How exactly do they differ?
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1answer
129 views

Can i tell if a Vertex Tree is a solid shape?

if a Vertex looks like this: struct vertex { vec3 point; vertex [] connected; }; Can I tell if this makes a solid shape with no holes? (e.g a sphere or a cube, NOT a sphere with a side ...
2
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2answers
535 views

Best way to traverse triangles in a mesh

I'm implementing non-projective decals. As described in many places (ie: lengyel in the gpg2) I first need to detect all triangles that lie within some sort of frustum. Besides obvious brute-force ...
8
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1answer
200 views

How to dynamically animate a part of a 3d model towards something

I'm curious about how this sort of animation is typically done code-wise. A few examples: A character picks something up - only hand is animated towards the target ...
1
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1answer
2k views

what algorithms exist for combining multiple triangle meshes into one mesh

Let's say I have a terrain mesh of some triangles, and several smaller meshes which I want to add to that terrain mesh (think ground and some small mounds or berms for example). What would I look for ...
0
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2answers
2k views

C++ SDL, Opengl 3D Game

I have been learning C++ for long time (but only learning game development for eight days) and I have made a simple game using 2D textures. I was thinking of starting on 3D game development. I wanted ...
0
votes
5answers
2k views

Polygon count target range for MMO being released in 2 years

What would a realistic poly count target range be for NPC and player models in a 3D MMO that will be released in 2 years? What about poly count target range for the entire camera view (environment, ...
2
votes
1answer
592 views

Does md2 support skeletal meshes?

I'm creating an FPS game. I'm writing my own game engine. So far all the backend stuff is going great. I'd like to support md2 as the native file format for 3D Objects, but I also want to use skeletal ...
2
votes
1answer
596 views

Triangle accuracy picking for animated models in XNA

I can do picking with triangle-accuracy for non-animated models, but I also have animated models in my game. How do I do picking on animated models? I use code based on this project for animation. ...
2
votes
1answer
5k views

Faster way to draw dynamic meshes in OpenGL ES

I'm writing a 3D game which is going to inlcude some dynamic meshes. For now, my code looks like this : private float[] mVertices; private FloatBuffer mVertexBuffer; public void onDrawFrame(GL10 ...
0
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1answer
1k views

Understanding .obj file

I downloaded a 3d model of a car. By judging by the skins and images available model treats wheels and car body as separate nodes. I want to access its child nodes (wheels) to specify animation. But ...
1
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1answer
2k views

ways to make a physics engine

Hey so i've been looking into real time physics engines, which led me to the crazyLaggoa multiphysics engine by thiaga costa, and brought up the question of: What are some possible ways, ideas that ...
5
votes
3answers
366 views

Drawing the same mesh or drawing the same material?

I was wondering. Suppose I have a 1000 grass meshes. They all have the same material, but I create them separately, because they look slightly different, because they have different heights. Does my ...
2
votes
2answers
2k views

How would I use GLM for Bullet Physics?

Right now im working on my c++ game, and im having alot of trouble using GLM and Bullet Physics to create my world correctly. The main problem is that when i export my physics with Blenderv2.57, and ...
4
votes
4answers
10k views

Move the location of the XYZ pivot point on a mesh in UDK

When working with any mesh, you get an XYZ point somewhere on it. If you just want to move the mesh in any direction, it doesn't matter where this point is located. However, I want to rotate a door. ...
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1answer
950 views

Want to develop android game

I want to develop a 3D multiplayer game for android , what is the best game engine , what is the best software to create 3d objects to import them to android ? Thank you .
13
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4answers
13k views

How to load 3D models into Java?

Using LWJGL what is the easiest way to load a 3D model to be drawn on screen? I know LWJGL doesn't have built in loading support so I am looking for a small library that would help to load ...
1
vote
1answer
955 views

Data Organization in Custom 3D Mesh File Format

After careful consideration to use middleware, I have decided on creating my own 3d file format format to export meshes from 3D authoring application (Softimage) into my game. I will need to export ...
2
votes
2answers
726 views

A good beginners' game engine to run on linux [closed]

I am involved with a research that deals with 3D graphics. I am very new to 3D graphics. In my research I have to move a 3D object based on some information queried by processing a video. Viewer's ...
6
votes
3answers
3k views

Modelling photo-realistic grass in realtime

I see a number of tutorials on how to create good looking grasses when creating 3D renders but can't think how to model it for realtime/use in a game's scenery. Sure simple models with alpha cutouts ...
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votes
3answers
3k views

good 3d model with bones? [closed]

Can anyone direct me to a site where I can download a free 3D model with a skeleton so I can practice using them in the XNA environment untill I'll make my own models? If the model is human-ish (2 ...
6
votes
1answer
521 views

How to create art assets for a 3d avatar editor

I am currently prototyping an idea for an iPhone game. I'd like to create an avatar editor inside the game so that the player can create a 3d avatar face and modify certain features (using slider ...
1
vote
1answer
487 views

Maya .IFF plugins for Gimp

Maya's preferred format for saving off a UV Snapshot is its own .IFF format, so I was hoping to find a plugin allowing Gimp 2 (Windows) to read it. I've found plenty of plugins for different linux ...
6
votes
2answers
1k views

How to export 3D models that consist of several parts (eg. turret on a tank)?

What are the standard alternatives for the mechanics of attaching turrets and such to 3D models for use in-game? I don't mean the logic, but rather the graphics aspects. My naive approach is to ...
4
votes
4answers
1k views

Custom mesh format - yea or nay?

In the process of writing my game prototype, I have found the OBJ format to be insufficient for my needs - it does not support any sort of animation, it doesn't support triangle strips (I'm targeting ...
2
votes
2answers
1k views

algorithm to “explode” mesh

i have a simple triangle mesh which i want to explode. so i am looking for an algorithm that makes every triangle to move outwards from the centerpoint. is there already something premade like this? ...
2
votes
1answer
359 views

What is the best way to render eletric wires (like in gta 4)?

From the top of my mind, I see 2 ways to do it : classic mesh. (but that's likely to be a lot of tris for little screenspace) bilboards (but the placements of the billboards may be tricky. still ...
3
votes
1answer
2k views

Loading and drawing materials using Lib3ds

Hey all, i'm currently using Lib3ds to load models into my C++/OpenGL project. So far, i've been follow the model loading tutorial found here. The tutorial gives a good example of how to draw the ...
2
votes
1answer
1k views

Font to polygon or triangle mesh

I've been happy using bitmap fonts for games so far, but now I find I really need the polygon edge in some form. I saw the freetype engine some time ago, which can provide rastering of truetype fonts ...
11
votes
3answers
5k views

Optimizing a mesh for voxel cube landscapes

Playing around with creating minecraftish/lego world landscapes in Unity 3D (procedurally generated voxel landscapes with cubes), I'm finding that the meshes created for these landscapes take up a LOT ...
5
votes
1answer
445 views

Best methodology to prepare 3d models for avatar customization?

I know preparing mount points and the like. But what's the best way to prevent Z fighting with customizations close to moving parts like elbows and knees?
5
votes
1answer
974 views

3DS Max equivalent to vertex weight painting

I'm working in 3ds max on models for an Iphone game project and finding that using the Physique modifier is to general for rigging. When working with so few vertices I want to be able to directly tell ...
1
vote
4answers
536 views

Import from mesh vs hardcoded vertices performance

Which brings better performance at run-time: a cube imported from a mesh, or a cube made from hardcoded vertices? Are there limitations to a certain method? Is one of them better architectural-wise?
0
votes
2answers
2k views

free maya 3d model [duplicate]

Possible Duplicate: Open-source 3D models easily usable in OGRE3D/jMonkeyEngine Can the community recommend some good sites that have free Maya 3D model? I am trying to find some and export ...
5
votes
5answers
418 views

Identifying mesh format from initial bytes

I have a file containing mesh data whose blocks seem to start with DWORDS like: 0x1 0x1 0x3100026f 0x1 0x30000112 or 0x1 0x1 0x310007b2 0x1 0x30000112 or 0x10000006 0x3 0x310001f6 0x310001f6 ...
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votes
2answers
502 views

MeshTextureCoords element in DirectX .x file

What is the significance of MeshTextureCoords element in a .x Mesh file?
3
votes
2answers
2k views

3D meshes for WPF (XAML)?

I'm trying to make a WPF-3D game. WPF uses XAML. I'm trying to find free 3D assets from the internet. :-) What format of 3D models I should be looking for, direct XAML or 3D Studio format or what? I ...
13
votes
4answers
3k views

What happened to COLLADA?

A few years back it was looking like COLLADA was going to be quite a big thing, maybe at last a fairly standardized format for getting 3D assets from a DCC package into the tools pipeline of a game. ...
2
votes
1answer
1k views

How to load a mesh from the .X-format in DirectX10 via SlimDX?

As of DirectX10, the usual functions to load a mesh in the .X-format are marked as deprecated and they are DX9 functions anyway. How can I load a mesh from the .X-format into an ID3DX10Mesh object ...
5
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3answers
2k views

Where should I go looking for low-polygon 3D assets? [closed]

The biggest problem for me as a game programmer (who isn't also an artist) is getting good quality 3D models. I have checked out some of the 3D model market places like The 3D Studio and Top 3D Models ...
10
votes
2answers
903 views

Do any 3d engines natively import Google Sketchup models

Google Sketchup is about the only 3d cad program I can use, because I suck. Do any 3d engines natively import Sketchup models? Are there any major caveats when doing so?
2
votes
1answer
690 views

What 3d mesh formats usable with DirectX10 are there?

I want to load a mesh into my game (written in C#, if this matters) but am not sure what mesh format to use. What mesh formats are there, how easy/hard it is to load them into DirectX10 and what's the ...