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Questions tagged [voxel]

A voxel (volumetric pixel) is a volume element, representing a value on a regular grid in three dimensional space.

Wikipedia, Voxel

434 questions
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Python: Replacing random.random with a .txt list

I'm trying to modify a python script that models a version of Conway's game of life. In which a set of cells in X number of columns and Y number of rows are each given a value that determines if they will switch between two states of active or…
HelloThisIsDog
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convert from world to voxel when 1 voxel doesn't equal 1 unity unit

I'm making a unity3d game which requires using a voxel engine to build structures, except I plan to include more models than just simple cubes, and some of these are quite small. So I need the voxels to be smaller than 1 unity unit each (3 per…
Jon Rurka
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Drawing a sphere with given Origin (Voxel Engine)

I've been desperately attempting to create a sphere tool in my voxel engine. I know the general function for creating a sphere: public bool getPoint (int x, int y, int z) { return (x*x+y*y+z*z < r*r) ? true : false; } This function will create…
Sam Skips Fowler
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Binary smooth voxels with sharp features

I'm trying to create a 3D world consisting of voxels (cubes). I'm trying to smooth the world out but I need to keep some blocks "blocky". Marching Cubes is a very popular way of smoothing the world but I don't see a very good way of adding "blocky"…
user1802876
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Vertex Buffer Object from ArrayList?

I'm trying to read and create a VBO from an ArrayList then render it. The problem is that I just render a blank screen. Everything worked fine when I was immediately rendering it; only now with VBO's is it not working. The game loop looks like this,…
Anubian Noob
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VTK: create cubes from pointcoud

i've got an unstructured point-cloud saved in *.vtk-format: # vtk DataFile Version 2.0 loop ASCII DATASET UNSTRUCTURED_GRID POINTS 16 float 32.4834848065 46.1737449255 21.3773504796 31.8539914061 46.6530202252 24.1360388749 34.985082367…
OD IUM
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Impose voxel grid on 3D point cloud

I am working with structured 2.5D and unstructured 3D data, which generally is available in (X,Y,Z) coordinates, i.e. point clouds. Now I want to impose a regular voxel grid onto the data. This is not meant for visualization purposes, but rather for…
Michael
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Blender: How To Specify Voxel Coordinates?

I have been playing around with Blender Voxel Data for a while now, and I'm still not sure how it works. What i need is to be able to specify the coordinates for each voxel. I have a data set like this: xx yy zz dd xx yy zz dd and I have a piece…
Lamikins
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Understanding the .binvox file format

I have a file with a list of (x,y,z) coordinates of points which I am attempting to convert into a voxel file format readable by viewvox. I have come across the binvox file format which seems like it should be relatively simple but I just can't get…
James Elderfield
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ThreeJS Voxel not fixed to grid

I am using the voxel painter example from the ThreeJS git repo. I have changed it so that the voxels are bigger than the example. Instead of taking up one grid space on the X coordinate, they take up 2. However doing this means the roll over mesh…
Cjmarkham
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Principal component analysis with Voxels using Matlab

I have Vectors which have a certain position (Voxels) in an image. I would like to perform a pca to cluster out all Voxels which are correlating with each other. I have for example three Voxels in 1D: syn_data_1 = [1;0;0;1;1]; syn_data_2 =…
C.Colden
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Voxel Chunk not rendering proper blocks?

I am currently trying to learn about 3D, and am trying to have some fun with 3d arrays and all that fun stuff, while at it. I cannot seem to understand why my code is not rendering proper cubes... I run through a 3D array and assign random states (1…
Matt Hirdler
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What are the barriers to Voxel Cone Tracing on mobile?

After watching the Unreal Engine 4 demo, I'd love to be able to use that tech in an iPad app. I know that it's not feasible right now, as they're targeting PCs and next gen consoles, but I was wondering what has to happen in order for it to be…
Curyous
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Creating and implementing a metaball skin system in OpenGL

I'd like to create or find an open source metaball skin system, which uses metaballs, voxelization to create meshes. I have 3 years experience in C\C++ and OpenGL. Yet I don't have an idea on how to tackle this system. What I want is a way to…
Boodz
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Is there any conventional way to do a per voxel shader programming?

I'm finding a way to do 3d filters in directx or opengl shaders, same as the gaussian filter for images.In detail, it is to do proccessing for every voxel of a 3d texture. Maybe store the volume data in slices can do it, but it is not a friendly…
user2535400
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