voxelizer | Pure math demo | Math library

by ramakarl C Version: Current License: Non-SPDX

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kandi X-RAY | voxelizer Summary

voxelizer is a C library typically used in Utilities, Math applications. voxelizer has no bugs, it has no vulnerabilities and it has low support. However voxelizer has a Non-SPDX License. You can download it from GitHub.

by Rama Karl Hoetzlein, This code is licensed CC0, public domain. (Interface helpers are BSD 3-clause) The interface lets you move the vertices of the triangle. Use A,S,D,F or space to change the technique. Code gives the basic math for the 3D voxelization of a triangle. Four techniques are provided. The first three are triangle-box intersection tests, and test the triangle against every voxel in the domain O(V^3). The last is a direct DDA Rasterizer, which only visits the voxels touched by the triangle O(Vt). 1- Explicit edge tests: Use edge fuctions to explicitly test each edge of triangle. 27 tests/voxel. 2- Schwarz-Seidel tests: Recent paper that uses a reduced, efficient set of edge tests. 9 tests/voxel. 3- Akenine-Moller tests: The first paper to provide efficient, exact voxelization. 18 tests/voxel. 4- DDA Rasterizer: Starts at one corner and scans along the edges, performing a DDA (2D differential analyzer) to fill the interior of the triangle in 3D. This technique is much faster as it only visits voxels on the triangle. Sources: Schwarz & Seidel, 2010, Fast Parallel Surface and Solid Voxelization on GPUs, Akenine-Moller, 2001, Fast 3D Triangle-Box Overlap Testing, Pineda, 1998, A Parallel Algorithm for Polygon Rasterization (Edge Functions), Citation of this code when used in papers or projects is appreciated: 2019. Hoetzlein, Rama. Voxelization of a triangle in 3D. Rama Hoetzlein (c) 2019.

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voxelizer has a low active ecosystem.

It has 12 star(s) with 1 fork(s). There are 2 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 0 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of voxelizer is current.

Quality

voxelizer has no bugs reported.

Security

voxelizer has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

voxelizer has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

voxelizer releases are not available. You will need to build from source code and install.

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voxelizer Key Features

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voxelizer Examples and Code Snippets

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Community Discussions

Trending Discussions on voxelizer

Question about segmentation fault on std::stack push

oct tree generation going wrong at the last step

how to use vtkImageReSlice?

QUESTION

Question about segmentation fault on std::stack push

Asked 2019-Aug-13 at 10:10

I am working on a octree traversal algorithm. The current implementation uses a std::queue for such purpose, working flawlessly. However, I would like to use for such traversal a std::stack, as a depth first search will give better performance, avoiding testing non needed nodes.

However, when changing from one structure to another, I start getting segmentation faults on the push() function. Here is the stack report from gdb:

...

ANSWER

Answered 2019-Aug-13 at 10:01

Seems to go wrong right from the start

Source https://stackoverflow.com/questions/57475326

QUESTION

oct tree generation going wrong at the last step

Asked 2018-Jun-09 at 17:33

NOTE: THIS QUESTION HAS BEEN DRASTICALLY EDITED FROM ITS ORIGINAL FORM

I am attempting to create a logarithmic raytracer by implementing an oct tree data structure combined with voxelization to achieve fast ray tracing.

Currently I am having issues with the ray collision detection.

The expected output should be the voxelized stanford dragon with its normal map.

Currrently the issue is that some regions are transparent:

The full dragon:

Transparent regions:

From these images it should be clear that the geometry is correct, but the collision checks are wrong.

There are 2 fragment shaders involved in this process:

The voxelizer fragment shader: ...

ANSWER

Answered 2018-Jun-09 at 17:33

The error comes from the sorting function as someone in the comments mentioned although not for the same reasons.

What has happened is that, I thought the sort function would modify the arrays passed to it, but it seems to be copying the data, so it does not return anything.

In other words:

Source https://stackoverflow.com/questions/50767629

QUESTION

how to use vtkImageReSlice?

Asked 2018-Mar-04 at 22:47

I am trying to use vtkImageReSlicer to extract a 2d slice from a 3d vtkImageData object. But I can't seem to get the recipe right. Am I doing it right?
I am also a bit confused about ResliceAxes Matrix. Does it represent a cutting plane? If I move the ReSliceAxes origin will it also move the cutting plane? When I call Update on the vtkImageReSlicer, the program crashes. But when I don't call it, the output is empty.

Here's what I have so far.

...

ANSWER

Answered 2018-Mar-04 at 22:47

I have never used vtkImageReslice, but I have used vtkExtractVOI for vtkImageData, which allows you to achieve a similar result, I think. Here is your example modified with the latter, instead:

Source https://stackoverflow.com/questions/49043158

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Install voxelizer

You can download it from GitHub.

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