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Questions tagged [voxels]

A voxel represents a value on a regular grid in three-dimensional space

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Converting meshes to metaballs

I'm doing a project where I need to convert an existing polygonal mesh into a static shape made from metaballs (blobs). I have voxelized the mesh with binvox to "a .raw file" (according to the description at binvox), but I have no clue of how it…
mechalynx
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Transparency with voxels in VisPy

I am attempting to use python and VisPy to display 3D data from a numpy array. I looked up the example here and it was extrememly useful. I've gotten the data to display--but it doesn't look the way I want. The way my data is displaying now I really…
R. C.
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How to render voxel in an efficient way

For now, I use a 3D array to represent my voxels in different chunks. I want to render voxels which can be visible by the player, but the way I do it is totally not efficient: I iterate over the whole 10*10*10 chunk and check on every voxel if there…
Trytio
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VTK: 3D matrix's volume has wrong dimensions

I want to visualize a 3-D matrix (Z slices of X*Y resolution) as the classic 3-d voxel. I generate the matrix in MATLAB and import it in Python. Then, following the code here and here, I come up with this solution. With this demonstration I am using…
MC-8
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Animating voxels as if they were 2d sprites in unity3d. Is there a better way than this?

I'm making voxel models, which I love as I love pixelart. The models I want to use in unity are very small humanoids and purely for function. As I look around for ways to animate these voxel models, all i really see is ways to add bones/rigs,…
PajaNBadger
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Write a black-white image stack into a boolean 3D voxel array?

What is the best and low memory option to read a B&W image stack, which contains the 0/1 values of an ISO volume, and write it into boolean voxel array? i.e. 2k images of 2k squared pixels provides 800MB of boolean. I started writing a 3D boolan…
bandybabboon
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Can anbody suggest me the way to voxelize 3d model?

This website explains on how to do it. http://drububu.com/miscellaneous/voxelizer/index.html But I can't understand how to implement it in code.
spuemaacne
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how to make 3d terrain using voxels and perlin noise

Ive read many tutorials on this concept but I feel none of them go into too much depth on how to do it. I already know how 3d programming (rasterizing, projection matrix, etc.) raycasting (using euclidean geometry and vectors) and raytracing work I…
ZachariahRS
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Voxelization of a Scene with Instanced Objects

I have created a simple scene in directx11 that has a plane as a floor, with several spheres, cubes and rectangular walls. There is only 3 objects loaded: a plane, cube and sphere; but the cube and sphere are instanced several times with different…
gboxentertainment
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Appending a Boolean array

Ok, I'm new to programming and this might be something everybody knows... I'm creating a game, and one of the features I'm intending to add is a 3D room map that I plan on generating with code. The problem I'm facing is that I need to append a…
KC43
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Why does Transvoxel make blocky terrain?

I've been working on an implementation of Transvoxel since while. Now it works, it polygonizes, but it's kind of blocky. Like the image below: This is the code for polygonization: private static Mesh PolygonizeRegularCell (Vector3i pos, Mesh mesh,…
Statey
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OpenGL Voxel engine Face Merging vs Per-Vertex Ambient occlusion

I'm making a voxel engine dividing the world in chunks with 32 x 32 x 32 blocks each. I've been implementing many rendering optimizations such as not rendering faces covered by solid voxels or face merging for same looking neighbour voxels. The…
lSnowy100l
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Creating chunks mesh in a voxel engine is slow

I am working on a voxel engine in C++, and after implementing chunks, I realised that they are really expensive to generate. By this, I don't mean populating them with blocks, I mean generating a chunk mesh. The game runs smoothly once chunks are…
Kelan
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VTK using VoxelModeller to build Voxel Space of Point Cloud

Here's what I'd like to do: I have a .pcd (PCL standard format) file in which it's stored a Point Cloud, I would like to build a voxel representation of it and then extract an isosurface. If I'm not wrong, I should follow this example…
Federico Nardi
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Check neighbouring voxels efficiently in 3D array of size n

My voxel system uses a flat 3D array dynamically allocated at runtime for each chunk, however generating millions of cubes per chunk isn't feasible so I need to optimize. The first optimization I intend to implement is of course to not generate mesh…
user2717116
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