The tag has no usage guidance.

learn more… | top users | synonyms

-3
votes
0answers
43 views

How to compress and send 36,864,000 numbers per second over a network? [on hold]

You have a 3D mesh made up of 307,200 vertices. Or to put it in programming terms, you have an array with 307,200 entries whereas each entry is an object containing the properties id, x, y and z, each ...
-1
votes
0answers
95 views

How to triangulate a 3D polygon? [closed]

How can I create a set of triangles to fill a 3D polygon? The polygon is an ordered sequence of 3D vertices defining a single geometric contour (a closed path). Vertices are not necessarly coplanar. ...
1
vote
0answers
53 views

Detecting surface faces of a huge 3D mesh/grid

I've written a module in my application that creates a mesh from existing coordinate and face data. The number of vertices in the mesh could easily exceed 10 million and the same goes for the faces. ...
9
votes
3answers
2k views

My algorithm that extracts the largest box that can be made from smaller boxes, is too slow

Imagine a cube based world (such as Minecraft, Trove, or Cube World) where everything is made up of identically sized cubes and all the cubes are of the same kind. The goal is to represent the world ...
4
votes
1answer
456 views

Competency matrix for 3D graphic skills [closed]

As a part of self-evalution, I bumped into this programmer competency matrix which collects many major aspects of being good/expert programmer. It really helped me a lot to understand what I know ...
7
votes
7answers
5k views

Rendering trillions of “atoms” instead of polygons?

I just saw a video about what the publishers call the "next major step after the invention of 3D". According to the person speaking in it, they use a huge amount of atoms grouped into clouds instead ...
2
votes
1answer
11k views

How does the new google maps make buildings and cityscapes 3D? [closed]

Anyone who's seen the new Google maps has no doubt taken note of the incredible amount of three-dimensional detail in select American cities such as Boston, New York, Chicago, and San Francisco. ...
10
votes
3answers
1k views

What is the most cross-browser/system compatible option for 3d graphics on a web page?

I would like to develop a bit of functionality for a web site that involves a bit of 3D - the user can move around objects, rotate them and texture them. So far I've looked into: WebGL (in ...
-1
votes
1answer
95 views

gnu lesser general public license question [closed]

I have a question about Thingiviews license. I have a site that has to do with 3D Printing, it is not done yet but I was wondering if I would be able to use it on my site, The big reason I am asking ...
-3
votes
1answer
452 views

Physics Engine with Fixed-Point Positions [closed]

Fixed-point object locations allow for worlds which are much more scale-able. Using a 64-bit integer (per dimension), and 0.1 millimeter precision, a world can be created which is 100% numerically ...
3
votes
1answer
245 views

Using a “spherical frustum” for 3D projection

I am currently writing a transformation from model space to clip space for use in OpenGL. From what i have seen, programmers typically use a traditional rectangular frustum to define the clipping ...
2
votes
1answer
431 views

Best way to define 'snap points' between two arbitrary objects in 3D?

I'm working on a simple in-browser 3D model constructor using THREE.js. The user picks a plane body, and adds wings, cockpit, tail etc of their choice, choosing from multiple options. I need to be ...
2
votes
0answers
233 views

Generate complex (non-convex) polyhedron UV mapping

I need to find an approach to the problem of generating texture maps for non-convex polyhedrons without using a design tool like Maya. Specifically, I am mapping simulation results data onto a 3D ...
1
vote
5answers
1k views

Starting with 3D programming [closed]

I will be working on a 3D project and i need to learn c++ and opengl fast. as i have heard it is the best combination to do graphics. I would also like your recommendation on this book I came ...
2
votes
1answer
2k views

3d point cloud render from x,y,z 2d array with texture

Need some direction on 3d point cloud display using OpenGL in c++ (vs2008). I am brand new to OpenGL and trying to do a 3d point cloud display with a texture. I have 3 2D arrays (each same size ...
2
votes
3answers
3k views

Calculating 3d rotation around random axis

This is actually a solved problem, but I want to understand why my original method didn't work (hoping someone with more knowledge can explain). (Keep in mind, I've not very experienced in 3d ...
-1
votes
1answer
629 views

How to move a car around an environment with hills in C++?

I don't have any code for this since I don't know how I am meant to do this. I have a car and I am able to move it around on a flat plane and I have that working correctly. However, I want it to also ...
0
votes
2answers
515 views

projective geometry: how do I turn a projection of a rectangle in 3D into a 2D view

So the problem is that I have a 3D projection of a rectangle that I want to turn into 2D. That is I have a photo of a sheet of paper laying on a table which I want to transform into a 2D view of that ...
1
vote
2answers
178 views

Rotate, Scale and Transform in video games

IF a 3 dot vector and a 3x3 matrix can rotate, scale and transform things in a virtual 3D space, could you use a 3x3x3 matrix and a 3.3.3 vector to do something to the games sense of time?
0
votes
2answers
796 views

Starting an HTML canvas game with no graphics skills

I want to do some hobby game development, but I have some unfortunate handicaps that have me stuck in indecision; I have no artistic talent, and I also have no experience with 3D graphics. But this ...
6
votes
2answers
2k views

Best approach to selecting programming languages and 3D graphics API for simulating physics experiments

I am starting a research project and need to nail down a programming language and 3D graphics API where I will be creating an environment in the field of molecular cell biology where I will be ...
7
votes
2answers
857 views

Where can I find an algorithm for creating 3D anaglyphs using a depth map image?

I'm looking for a generic algorithm to calculate a red/cyan anaglyph starting from the original image and its black/white depth map, as in this example? That algorithm is used, for example, in ...
2
votes
2answers
215 views

Searching for entity awareness in 3D space algorithm and data structure

I'm trying to do some huge AI system just for the fun and I've come to this problem. How can I let the AI entities know about each other without getting the CPU to perform redundant and costly work? ...
1
vote
5answers
330 views

How would I develop an avatar based 3D conference environment? [closed]

I want to develop a 3d environment to be used for meetings and other such functions. Each attendee could log in with a customized avatar and could collaborate and discuss via voice and text chat. I ...
1
vote
1answer
211 views

Zoom to Fit Points on Surface

I'm attempting to develop a piece of functionality using a 3rd party map control in an application that automatically pans/zooms the map surface to the best possible view given points on map. The map ...
1
vote
1answer
212 views

Where is java3d used?

The idea of java3d is very interesting, but I don't see any desktop or web applications built using java3d. Where is it used and what perspectives does it have?
2
votes
1answer
666 views

What's the HTML5 3D canvas? How is it different with WebGL?

I heard about 3D canvas. It's strange for me. Because I know there's already a industrial standard 3D API WebGL. What's that? How is it different with WebGL?