VOlumetric piXEL (volumetric picture element). An approach to world construction that uses small, uniform volumetric elements as opposed to the larger, non-uniform polyhedra most commonly found in contemporary games.
3
votes
2answers
172 views
Grids and vertices
I have no idea what this is even called or even to start searching how to solve this problem. So figured I would post here for any information at all. Specially looking for already known solutions to ...
4
votes
1answer
161 views
Marching cube texturing
I'm working on a voxel game, and I have some problems with texturing. I have read the related questions on this stack exchange, but they seem adressing a generic problem (using triplanar texturing), ...
-1
votes
1answer
104 views
Generating a grid of cubes in 3D space [closed]
I am trying to generate a grid of cubes in 3D space and It aint workin...
All im doing is for looping YXZ (in that order) (nested for loops) then im doing cubes[x][y][z] = ... (new Location(x,y,z))
...
4
votes
1answer
149 views
How to flatten out terrain and make better caves with Perlin noise
I'm currently using Perlin noise to generate a terrain. This is my actual attempt to create caves. I do get some sort of cave structures but they are small and are always close to the edges of the ...
6
votes
2answers
483 views
Cave generation with Perlin worms
I'm currently trying to generate a Minecraft like voxel terrain with 3D Simplex Noise and also want to implement caves.
I found the method of Perlin Worms in this thread, which generates really nice ...
0
votes
1answer
365 views
3D Texture Mapping (Atlas)
This is a pretty simple question. If I was to use multiple images in a single texture for a 3D cube, how would I go about re-using each vertex (having 8 total vs 24)?
With a single buffer of 8 ...
4
votes
0answers
160 views
Producing a smooth mesh from density cloud and marching cubes
Based on my results from this question I decided to build myself a 3D noise map containing float values in place of my existing boolean point values. The effect I'm trying to produce is something like ...
3
votes
2answers
235 views
Where and how to smooth a voxel-based terrain surface?
I want to smooth the blocky terrain in a Minecraft-like world. The smoothing affects visual appearance and physics but not the logic of placing and picking blocks. I have my mathematical formula to ...
2
votes
2answers
302 views
Understanding marching cubes and voxel data relationships
in case it matters i'm doing all this in unity with C# ...
I think I missed something or maybe don't understand the logic correctly.
I have an existing voxel engine that looks very "minecrafty" at ...
6
votes
2answers
534 views
Creating a navmesh from a voxel terrain
My world is represented by a 3D density field, where a positive density means solid ground and a negative (or zero) density means air. How can I generate a navmesh from that voxel data, with surfaces ...
6
votes
3answers
1k views
How do I implement a Bullet Physics CollisionObject that represents my cube like terrain?
I've successfully integrated the Bullet Physics library into my entity/component system. Entities can collide with each other. Now I need to enable them to collide with the terrain, which is finite ...
2
votes
1answer
157 views
How to solve artifacts caused by vertex lighting in my voxel engine?
My current lighting system bakes the light amount based on ray-tracing from the light source to the 8 corners of the block (so per-vertex) and the distance to the light on the blocks. It works ...
4
votes
0answers
518 views
Raycasting problem
I have a problem with my raycasting. I have 8 cubes, that define the first level of an octree (Eg. they create bigger cube).
I need to raycast them and "render" each cube. If I have only one cube, ...
-2
votes
1answer
110 views
Does this UV mapping method look ok? [closed]
i'm having a spot of trouble trying to get my voxels textures in the right place.
I am using a very simple mechanism that assumes all sides of any given block are always individually specified (i'll ...
3
votes
3answers
364 views
Voxel engine artifacts
There are white little dots between blocks at random places, mainly at very near blocks. They disappear when I move the mouse and change the view direction.
I use Vertex Arrays with ...
-1
votes
2answers
142 views
Draw 60,000 cubic with DrawUserPrimitives on xna with only 20 fps-buffer problem?
I'm working on a minecraft style games on xna. I know it is not easy to draw a lot of cube with a good ratio of fps. I use the method "DrawUserPrimitive" with a buffer to draw a floor 250X250 cubes. ...
7
votes
2answers
135 views
Determining if removal of a voxel will break up a group
I have the following situation: I have a 3d grid of voxels (on/off, the max size is probably 128x128x128). I know in advance that inside the grid, all the voxels that are turned on are interconnected, ...
9
votes
3answers
500 views
Algorithm to see if two voxels are interconnected
I'm looking for a good algorithms for the following problem: Given a 3D grid of voxels (which may be either empty or filled), if I pick two non-adjacent voxels, I want to know if they are connected to ...
-1
votes
1answer
356 views
Voxel terrain engine [closed]
Is there some voxel frameworks or extensions for game engines like Unity?
I really need a system to dynamically generate voxel ruinable terrains.
4
votes
4answers
474 views
Cast ray to select block in voxel game
I am developing a game with a Minecraft-like terrain made out of blocks. Since basic rendering and chunk loading is done now, I want to implement block selecting.
Therefore I need to find out what ...
2
votes
1answer
223 views
Making efficeint voxel engines using “chunks”
Concept
I'm currently looking in to how voxel engines work with a view to possibly making one myself.
I see a lot of stuff like this ...
...
2
votes
2answers
185 views
Choosing a correct collisionshape for a voxel engine
I am building a voxel engine on Ogre with bullet as a physics engine.
I separated my blocks into chunks to help batch together render calls.
At the moment, each chunk's physics is handled by a ...
5
votes
3answers
216 views
Need physics algorithm for modeling ceiling collapse in voxel-based game
I'm looking for algorithms on how to model the physics of cave-ins/collapses for a game idea I am working on. The game allows the player to extensively mine 3D voxel-based asteroids, and I want areas ...
6
votes
0answers
105 views
How to extend the btCollisionAlgorithm class in order to enable collision response with a terrain map created from voxels
I am using Bullet, and am attempting to make a collision algorithm that generates contact points off of a voxel (cube) based terrain, and creates the appropriate collision response. I also plan to ...
8
votes
1answer
228 views
Curious Transparent Holes Render Artifact
So I'm trying to implement "smooth" terrain in my block engine by giving each surface block a heightmap.
Basically, what I do to generate these "heightmaps" for each block is I generate the heights ...
4
votes
1answer
816 views
Minecraft style XNA game collision?
I've been trying to get this working for ages now, I can detect if there's a solid block at any place on the map and I can check how far something is inside of it, but I don't understand how to fix ...
17
votes
6answers
5k views
How can I improve rendering speeds of a Voxel/Minecraft type game?
I'm writing my own clone of Minecraft (also written in Java). It works great right now. With a viewing distance of 40 meters I can easily hit 60 FPS on my MacBook Pro 8,1. (Intel i5 + Intel HD ...
1
vote
3answers
231 views
Finding cubes in frustum
Working with an infinite set of cubes, is there a way of detecting which cubes exist within a frustum?
Most frustum culling seems to work along the lines of running through all objects and seeing if ...
12
votes
2answers
706 views
Smooth Voxel Terrain
As a personal project, I'm trying to make a terrain generator that will create terrain looking something like the Castle Story smooth terrain.
If you haven't seen it before, here:
So as you can ...
0
votes
1answer
261 views
Octrees and Vertex Buffer Objects
As many others I want to code a game with a voxel based terrain. The data is represented by voxels which are rendered using triangles. I head of two different approaches and want to combine them.
...
2
votes
2answers
213 views
Square game map rendered as sphere
For a hobby project of mine I have created a finite voxel world (similar to Minecraft), but as I said, mine is finite. When you reach the edge of it, you are sent to the other side. That is all ...
1
vote
1answer
224 views
Rendering different materials in a voxel terrain
Each voxel datapoint in my terrain model is made up of two properties: density and material type. Each is stored as an unsigned integer value (but the density is interpreted as a decimal value ...
30
votes
7answers
4k views
How to improve Minecraft-esque voxel world performance?
After playing Minecraft I marveled a bit at its large worlds but at the same time I found them extremely slow to navigate, even with a quad core and meaty graphics card.
Now I assume Minecraft is ...
0
votes
2answers
400 views
“Marching cubes” voxel terrain - triplanar texturing with depth?
I am currently working on a voxel terrain that uses the marching cubes algorithm for polygonizing the scalar field of voxels. I am using a triplanar texturing shader for texturing. say I have a grass ...
2
votes
2answers
175 views
Should I always be checking every neighbor when building voxel meshes?
I've been playing around with Unity3d, seeing if I can make a voxel-based engine out of it (a la Castle Story, or Minecraft).
I've dynamically built a mesh from a volume of cubes, and now I'm ...
2
votes
1answer
617 views
Voxel terrain rendering with marching cubes
I was working on making procedurally generated terrain using normal cubish voxels (like minecraft) But then I read about marching cubes and decided to convert to using those. I managed to create a ...
5
votes
1answer
492 views
Merging adjacent cubes into large ones
I am currently working on a basic minecraft like game.
I have a list of coordinates using which i render instances of a cube model.
To optimize my rendering, i need to merge similar adjacent cubes ...
3
votes
2answers
205 views
Rotating voxels in 3d space amongst the x axis
I have a very simple voxel engine and so far it works based on coordinates, e.g. x, y, z. I was wondering if there is a formula for rotating groups of voxels/coordinates from the x axis(e.g. [0, 1, ...
0
votes
0answers
1k views
Want to make a voxel game engine. Where to start? [closed]
I recently started watching youtube videos of peoples voxel engines and would like to attempt making one, as a small personal project. The only thing that I'd like to know is, what is the best ...
3
votes
1answer
199 views
Efficient visualization of a large voxelized volume
Lets consider a large voxelized volume stored in an oct-tree or any other convenient structure. This volume represents, for instance, a landscape, where each block is either empty (air), or it has an ...
2
votes
3answers
805 views
I'm a single developer making a game made of blocks. Can I make 3d characters made of blocks without looking like Minecraft?
I would like to differentiate the look as much as I can but yet it has to be within the limits of what is reasonable for a single programmer can do. I have alot of ideas that would make the game ...
10
votes
5answers
2k views
Working with lots of cubes. Improving performance?
Edit: To sum the question up, I have a voxel based world (Minecraft style (Thanks Communist Duck)) which is suffering from poor performance. I am not positive on the source but would like any possible ...
3
votes
2answers
1k views
Collision Detection problems in Voxel Engine (XNA)
I am creating a minecraft like terrain engine in XNA and have had some collision problems for quite some time. I have checked and changed my code based on other peoples collision code and I still have ...
2
votes
1answer
1k views
C# XNA: Effecient mesh building algorithm for voxel based terrain (“top” outside layer only, non-destructible)
To put this bluntly, for non-destructible/non-constructible voxel style terrain, are generated meshes handled much better than instancing? Is there another method to achieve millions of visible quad ...
1
vote
3answers
776 views
Any ideas on reducing lag in terrain generation?
Ok so here's the deal. I've written an isometric engine that generates terrain based on camera values using 2D perlin noise. I planned on doing 3D but first I need to work out the lag issues I'm ...
4
votes
1answer
211 views
Method for procedurally creating spawn points
I have a world made of floating islands that are procedurally generated. I would like to spawn enemies or the player in logical-non-falling-into-space spawn points. Ideas on how to accomplish this? ...
4
votes
4answers
546 views
Weird block selector selection (to floor or not to floor)?
Well, I am creating a Minecraft like engine in XNA, and since I first implemented the block selector (the cube that allows you to select blocks in 3D space) it has always been very inaccurate. Here is ...
33
votes
5answers
11k views
What are some good resources for building a voxel engine?
What are some good resources (tutorials, code, papers, etc.) for learning about voxel rendering?
2
votes
3answers
899 views
Optimized rendering of a cube mesh world
I want to render a cube-mesh (a.k.a. Minecraft-style) world. If I render each existing cube it will eat up FPS pretty quickly. How can I optimize it? I understand that the point is to not render ...
2
votes
2answers
716 views
Sparse Voxel Octrees which parts on GPU or CPU?
I'm currently doing research into building my own voxel engine and found a lot of articles mentioning SVOs as the best mechanism. I just wanted to know that I understood the algorithm correctly, ...
