Thrilled !
My GEOGRAM software library is used by NASA AMES center, in their Launch & Ascent Vehicle Aerodynamics software. GEOGRAM is used in their Voronoi meshing component.
- www.nas.nasa.gov/LAVA
- ntrs.nasa.gov/api/citation...
- www.nas.nasa.gov/LAVA/print_p...
My GEOGRAM software library is used by NASA AMES center, in their Launch & Ascent Vehicle Aerodynamics software. GEOGRAM is used in their Voronoi meshing component.
- www.nas.nasa.gov/LAVA
- ntrs.nasa.gov/api/citation...
- www.nas.nasa.gov/LAVA/print_p...
April 27, 2026 at 5:10 PM
Thrilled !
My GEOGRAM software library is used by NASA AMES center, in their Launch & Ascent Vehicle Aerodynamics software. GEOGRAM is used in their Voronoi meshing component.
- www.nas.nasa.gov/LAVA
- ntrs.nasa.gov/api/citation...
- www.nas.nasa.gov/LAVA/print_p...
My GEOGRAM software library is used by NASA AMES center, in their Launch & Ascent Vehicle Aerodynamics software. GEOGRAM is used in their Voronoi meshing component.
- www.nas.nasa.gov/LAVA
- ntrs.nasa.gov/api/citation...
- www.nas.nasa.gov/LAVA/print_p...
Geogram 1.9.8 is out !
github.com/BrunoLevy/ge...
Geogram is a programming library with geometric algorithm.
it has mesh repair, mesh simplification, mesh intersection, Delaunay triangulation, exact predicates and much more !
github.com/BrunoLevy/ge...
Geogram is a programming library with geometric algorithm.
it has mesh repair, mesh simplification, mesh intersection, Delaunay triangulation, exact predicates and much more !
December 28, 2025 at 3:49 PM
Geogram 1.9.8 is out !
github.com/BrunoLevy/ge...
Geogram is a programming library with geometric algorithm.
it has mesh repair, mesh simplification, mesh intersection, Delaunay triangulation, exact predicates and much more !
github.com/BrunoLevy/ge...
Geogram is a programming library with geometric algorithm.
it has mesh repair, mesh simplification, mesh intersection, Delaunay triangulation, exact predicates and much more !
Still working on hashtag#geogram / geogram+ / Tessael boolean operations for meshes,
Making them faster without sacrifying robustness and generality.
More to come ...
(this test suggested by Cyprien Plateau Holleville)
Making them faster without sacrifying robustness and generality.
More to come ...
(this test suggested by Cyprien Plateau Holleville)
June 3, 2026 at 4:02 AM
Still working on hashtag#geogram / geogram+ / Tessael boolean operations for meshes,
Making them faster without sacrifying robustness and generality.
More to come ...
(this test suggested by Cyprien Plateau Holleville)
Making them faster without sacrifying robustness and generality.
More to come ...
(this test suggested by Cyprien Plateau Holleville)
Playing with geogram+ from Tessael.
I want robust and accurate boolean operations / CSG with meshes
I also want them to run fast
Why should I choose ?
Tessael developed geogram+, an enhanced version of geogram.
Playing with it in Python, in Polyscope, using Tessael's "ALLOY" interop middleware.
I want robust and accurate boolean operations / CSG with meshes
I also want them to run fast
Why should I choose ?
Tessael developed geogram+, an enhanced version of geogram.
Playing with it in Python, in Polyscope, using Tessael's "ALLOY" interop middleware.
May 11, 2026 at 11:44 AM
Playing with geogram+ from Tessael.
I want robust and accurate boolean operations / CSG with meshes
I also want them to run fast
Why should I choose ?
Tessael developed geogram+, an enhanced version of geogram.
Playing with it in Python, in Polyscope, using Tessael's "ALLOY" interop middleware.
I want robust and accurate boolean operations / CSG with meshes
I also want them to run fast
Why should I choose ?
Tessael developed geogram+, an enhanced version of geogram.
Playing with it in Python, in Polyscope, using Tessael's "ALLOY" interop middleware.
February 10, 2026 at 8:28 PM
New "EasterEgg" release of #geogram (1.9.5), the geometry processing library
github.com/BrunoLevy/ge...
This image:
Python-polyscope-geogram interop, more on this here:
github.com/BrunoLevy/py...
Egg from: thingiverse.com/thing:5860339
github.com/BrunoLevy/ge...
This image:
Python-polyscope-geogram interop, more on this here:
github.com/BrunoLevy/py...
Egg from: thingiverse.com/thing:5860339
May 2, 2025 at 10:58 AM
New "EasterEgg" release of #geogram (1.9.5), the geometry processing library
github.com/BrunoLevy/ge...
This image:
Python-polyscope-geogram interop, more on this here:
github.com/BrunoLevy/py...
Egg from: thingiverse.com/thing:5860339
github.com/BrunoLevy/ge...
This image:
Python-polyscope-geogram interop, more on this here:
github.com/BrunoLevy/py...
Egg from: thingiverse.com/thing:5860339
New version of #geogram (v1.9.4), the geometry processing library.
Version highlights:
- support for very large .geogram files (> 4Gb) in standard mode and "GARGANTUA" mode
- improved interop with OpenSCAD
github.com/BrunoLevy/ge...
Version highlights:
- support for very large .geogram files (> 4Gb) in standard mode and "GARGANTUA" mode
- improved interop with OpenSCAD
github.com/BrunoLevy/ge...
March 6, 2025 at 2:45 PM
New version of #geogram (v1.9.4), the geometry processing library.
Version highlights:
- support for very large .geogram files (> 4Gb) in standard mode and "GARGANTUA" mode
- improved interop with OpenSCAD
github.com/BrunoLevy/ge...
Version highlights:
- support for very large .geogram files (> 4Gb) in standard mode and "GARGANTUA" mode
- improved interop with OpenSCAD
github.com/BrunoLevy/ge...
Ooh, #geogram 1.9.9 is out !
What's geogram ?
What, you don't know already ? What are you waiting for ? Take a look here ⤵️
github.com/BrunoLevy/ge...
What's geogram ?
What, you don't know already ? What are you waiting for ? Take a look here ⤵️
github.com/BrunoLevy/ge...
April 8, 2026 at 5:09 PM
Ooh, #geogram 1.9.9 is out !
What's geogram ?
What, you don't know already ? What are you waiting for ? Take a look here ⤵️
github.com/BrunoLevy/ge...
What's geogram ?
What, you don't know already ? What are you waiting for ? Take a look here ⤵️
github.com/BrunoLevy/ge...
Ho ho ho !!!
New versions of:
- geogram: the award-winning library, with remeshing, Delaunay, parameterization, CSG... github.com/BrunoLevy/ge...
- OpenNL: solve large sparse linear systems, multi-GPU support, github.com/BrunoLevy/ge...
- Graphite: GUI around geogram github.com/BrunoLevy/Gr...
New versions of:
- geogram: the award-winning library, with remeshing, Delaunay, parameterization, CSG... github.com/BrunoLevy/ge...
- OpenNL: solve large sparse linear systems, multi-GPU support, github.com/BrunoLevy/ge...
- Graphite: GUI around geogram github.com/BrunoLevy/Gr...
December 20, 2024 at 7:25 AM
Ho ho ho !!!
New versions of:
- geogram: the award-winning library, with remeshing, Delaunay, parameterization, CSG... github.com/BrunoLevy/ge...
- OpenNL: solve large sparse linear systems, multi-GPU support, github.com/BrunoLevy/ge...
- Graphite: GUI around geogram github.com/BrunoLevy/Gr...
New versions of:
- geogram: the award-winning library, with remeshing, Delaunay, parameterization, CSG... github.com/BrunoLevy/ge...
- OpenNL: solve large sparse linear systems, multi-GPU support, github.com/BrunoLevy/ge...
- Graphite: GUI around geogram github.com/BrunoLevy/Gr...
#geogram used to create biology-inspired jewelry, cool !!
To design our Radiozoa, we built a tool to define anisotropy on a surface, find an embedding in 20D, compute a CVD using @brunolevy01.bsky.social's Geogram, and then project it back down to 3D.
We mostly use an expression editor to define anisotropy.
github.com/BrunoLevy/ge...
We mostly use an expression editor to define anisotropy.
github.com/BrunoLevy/ge...
December 2, 2024 at 10:01 PM
#geogram used to create biology-inspired jewelry, cool !!
#geogram just reached 2500 stars on github,
And that's not all, version 1.10.1 was just released:
github.com/BrunoLevy/ge...
Geogram is in C++, but it also supports Python, Node.js, WebAssembly, TypeScript and Lua through Rosetta by Frantz Maerten, more on this here: github.com/rosetta-bind...
And that's not all, version 1.10.1 was just released:
github.com/BrunoLevy/ge...
Geogram is in C++, but it also supports Python, Node.js, WebAssembly, TypeScript and Lua through Rosetta by Frantz Maerten, more on this here: github.com/rosetta-bind...
September 1, 2026 at 5:22 PM
#geogram just reached 2500 stars on github,
And that's not all, version 1.10.1 was just released:
github.com/BrunoLevy/ge...
Geogram is in C++, but it also supports Python, Node.js, WebAssembly, TypeScript and Lua through Rosetta by Frantz Maerten, more on this here: github.com/rosetta-bind...
And that's not all, version 1.10.1 was just released:
github.com/BrunoLevy/ge...
Geogram is in C++, but it also supports Python, Node.js, WebAssembly, TypeScript and Lua through Rosetta by Frantz Maerten, more on this here: github.com/rosetta-bind...
#geogram 1.9.7 is out !
Geogram is a software library of geometric algorithms, it has mesh intersection, remeshing, CSG, Delaunay and Voronoi in 2D and 3D, constrained Delaunay triangulation in 2D ... and much more !
github.com/BrunoLevy/ge...
Geogram is a software library of geometric algorithms, it has mesh intersection, remeshing, CSG, Delaunay and Voronoi in 2D and 3D, constrained Delaunay triangulation in 2D ... and much more !
github.com/BrunoLevy/ge...
October 9, 2025 at 8:01 AM
#geogram 1.9.7 is out !
Geogram is a software library of geometric algorithms, it has mesh intersection, remeshing, CSG, Delaunay and Voronoi in 2D and 3D, constrained Delaunay triangulation in 2D ... and much more !
github.com/BrunoLevy/ge...
Geogram is a software library of geometric algorithms, it has mesh intersection, remeshing, CSG, Delaunay and Voronoi in 2D and 3D, constrained Delaunay triangulation in 2D ... and much more !
github.com/BrunoLevy/ge...
Mesh intersections is hard ! Three years of agonizing pain summarized in my article that just got accepted to ACM Transactions on Graphics
dl.acm.org/doi/10.1145/...
The implementation and the expansion-based arithmetic kernel are available in geogram: github.com/BrunoLevy/ge...
dl.acm.org/doi/10.1145/...
The implementation and the expansion-based arithmetic kernel are available in geogram: github.com/BrunoLevy/ge...
June 13, 2025 at 8:33 AM
Mesh intersections is hard ! Three years of agonizing pain summarized in my article that just got accepted to ACM Transactions on Graphics
dl.acm.org/doi/10.1145/...
The implementation and the expansion-based arithmetic kernel are available in geogram: github.com/BrunoLevy/ge...
dl.acm.org/doi/10.1145/...
The implementation and the expansion-based arithmetic kernel are available in geogram: github.com/BrunoLevy/ge...
A new release of #geogram, the geometry-processing library is out (v1.9.3).
Details here: github.com/BrunoLevy/ge...
Details here: github.com/BrunoLevy/ge...
February 4, 2025 at 6:19 PM
A new release of #geogram, the geometry-processing library is out (v1.9.3).
Details here: github.com/BrunoLevy/ge...
Details here: github.com/BrunoLevy/ge...
G is for Geometry, G is for Geogram !
New version v1.9.6 of Geogram, the award winning geometry processing library.
Press G for Geogram, and play with advanced geometry processing tools.
github.com/BrunoLevy/ge...
New version v1.9.6 of Geogram, the award winning geometry processing library.
Press G for Geogram, and play with advanced geometry processing tools.
github.com/BrunoLevy/ge...
June 25, 2025 at 12:51 PM
G is for Geometry, G is for Geogram !
New version v1.9.6 of Geogram, the award winning geometry processing library.
Press G for Geogram, and play with advanced geometry processing tools.
github.com/BrunoLevy/ge...
New version v1.9.6 of Geogram, the award winning geometry processing library.
Press G for Geogram, and play with advanced geometry processing tools.
github.com/BrunoLevy/ge...
Geogram flies !
The other day, I was reading this article from NASA Ames Research Center:
ntrs.nasa.gov/api/citation...
What do they use for the geometric computations ?
Geogram of course ! (thrilled !!)
Geogram is a library with geometry processing algorithm:
github.com/BrunoLevy/ge...
The other day, I was reading this article from NASA Ames Research Center:
ntrs.nasa.gov/api/citation...
What do they use for the geometric computations ?
Geogram of course ! (thrilled !!)
Geogram is a library with geometry processing algorithm:
github.com/BrunoLevy/ge...
January 6, 2026 at 8:46 PM
Geogram flies !
The other day, I was reading this article from NASA Ames Research Center:
ntrs.nasa.gov/api/citation...
What do they use for the geometric computations ?
Geogram of course ! (thrilled !!)
Geogram is a library with geometry processing algorithm:
github.com/BrunoLevy/ge...
The other day, I was reading this article from NASA Ames Research Center:
ntrs.nasa.gov/api/citation...
What do they use for the geometric computations ?
Geogram of course ! (thrilled !!)
Geogram is a library with geometry processing algorithm:
github.com/BrunoLevy/ge...
#geogram v1.9.5 is out
(github.com/BrunoLevy/ge...)
- improved OpenSCAD compatibility
- some modern C++ "syntaxic sugar" for easier iteration on mesh elements
- fixed several graphic glitches on MacOS
(github.com/BrunoLevy/ge...)
- improved OpenSCAD compatibility
- some modern C++ "syntaxic sugar" for easier iteration on mesh elements
- fixed several graphic glitches on MacOS
May 9, 2025 at 4:42 PM
#geogram v1.9.5 is out
(github.com/BrunoLevy/ge...)
- improved OpenSCAD compatibility
- some modern C++ "syntaxic sugar" for easier iteration on mesh elements
- fixed several graphic glitches on MacOS
(github.com/BrunoLevy/ge...)
- improved OpenSCAD compatibility
- some modern C++ "syntaxic sugar" for easier iteration on mesh elements
- fixed several graphic glitches on MacOS
Constructing a complicated geological model using Graphite,geogram and geogram+ (from Tessael)
The intersection engine and exact number kernel of geogram+ goes brrrr !!
The intersection engine and exact number kernel of geogram+ goes brrrr !!
February 17, 2026 at 8:49 PM
Constructing a complicated geological model using Graphite,geogram and geogram+ (from Tessael)
The intersection engine and exact number kernel of geogram+ goes brrrr !!
The intersection engine and exact number kernel of geogram+ goes brrrr !!
New version (v1.9.1) of Geogram, the award-winning geometry processing library is out !
New in this version:
- much faster (2x speed) large-scale periodic Delaunay triangulation and power diagrams
- Linsolve/GPU: AMGCL + new nlCuda backend goes brrrr !
github.com/BrunoLevy/ge...
November 26, 2024 at 8:22 AM
New version (v1.9.1) of Geogram, the award-winning geometry processing library is out !
New in this version:
- much faster (2x speed) large-scale periodic Delaunay triangulation and power diagrams
- Linsolve/GPU: AMGCL + new nlCuda backend goes brrrr !
github.com/BrunoLevy/ge...
Enjoyed yesterday's "menger sponge" example computed by hashtag#geogram and Tessael's geogram+ ? Let's see a more interesting example: a nice plane engine that Cyprien found on grabcad. Can we apply boolean operations to such a complex mesh ? Yes !!
January 19, 2026 at 1:17 PM
Enjoyed yesterday's "menger sponge" example computed by hashtag#geogram and Tessael's geogram+ ? Let's see a more interesting example: a nice plane engine that Cyprien found on grabcad. Can we apply boolean operations to such a complex mesh ? Yes !!
A good crash-test for #geogram: level-5 Menger sponge
100K facets have intersections, and some of them more than 1K intersections in same facet.
Final mesh: 1.4M vertices and 3.8M faces,
CSG engine and geogram+ arithmetic kernel marketed by Tessael go brrr !!!
github.com/BrunoLevy/ge...
100K facets have intersections, and some of them more than 1K intersections in same facet.
Final mesh: 1.4M vertices and 3.8M faces,
CSG engine and geogram+ arithmetic kernel marketed by Tessael go brrr !!!
github.com/BrunoLevy/ge...
January 18, 2026 at 6:19 PM
A good crash-test for #geogram: level-5 Menger sponge
100K facets have intersections, and some of them more than 1K intersections in same facet.
Final mesh: 1.4M vertices and 3.8M faces,
CSG engine and geogram+ arithmetic kernel marketed by Tessael go brrr !!!
github.com/BrunoLevy/ge...
100K facets have intersections, and some of them more than 1K intersections in same facet.
Final mesh: 1.4M vertices and 3.8M faces,
CSG engine and geogram+ arithmetic kernel marketed by Tessael go brrr !!!
github.com/BrunoLevy/ge...
Thanks all! The two that people seem to like are:
Geogram by @brunolevy01.bsky.social :
github.com/BrunoLevy/ge...
Manifold by @elalish.bsky.social :
github.com/elalish/mani...
Geogram by @brunolevy01.bsky.social :
github.com/BrunoLevy/ge...
Manifold by @elalish.bsky.social :
github.com/elalish/mani...
October 11, 2025 at 11:43 PM
Thanks all! The two that people seem to like are:
Geogram by @brunolevy01.bsky.social :
github.com/BrunoLevy/ge...
Manifold by @elalish.bsky.social :
github.com/elalish/mani...
Geogram by @brunolevy01.bsky.social :
github.com/BrunoLevy/ge...
Manifold by @elalish.bsky.social :
github.com/elalish/mani...
A cube of 60 Mega parsecs with 1 billion galaxy clusters.
#geogram parallel Delaunay triangulation with periodic conditions goes bbbrrrrr !!!
1 billion points
7 billion tetrahedra
400 seconds
Running on 256 cores (two AMD EPYC 9754)
with 1 TB RAM on grid5000
Next step: optimal transport !
#geogram parallel Delaunay triangulation with periodic conditions goes bbbrrrrr !!!
1 billion points
7 billion tetrahedra
400 seconds
Running on 256 cores (two AMD EPYC 9754)
with 1 TB RAM on grid5000
Next step: optimal transport !
December 4, 2024 at 12:22 PM
A cube of 60 Mega parsecs with 1 billion galaxy clusters.
#geogram parallel Delaunay triangulation with periodic conditions goes bbbrrrrr !!!
1 billion points
7 billion tetrahedra
400 seconds
Running on 256 cores (two AMD EPYC 9754)
with 1 TB RAM on grid5000
Next step: optimal transport !
#geogram parallel Delaunay triangulation with periodic conditions goes bbbrrrrr !!!
1 billion points
7 billion tetrahedra
400 seconds
Running on 256 cores (two AMD EPYC 9754)
with 1 TB RAM on grid5000
Next step: optimal transport !
Working on Graphite/Geogram, improved the GUI, reorganized in a tree (leaves much more space for the 3D view). Will be released soon. For the curious, the repo is up to date here: github.com/BrunoLevy/Gr...
Image: OpenSCAD test suite (displayed in a retro-futurist style for fun...)
Image: OpenSCAD test suite (displayed in a retro-futurist style for fun...)
February 8, 2026 at 8:35 AM
Working on Graphite/Geogram, improved the GUI, reorganized in a tree (leaves much more space for the 3D view). Will be released soon. For the curious, the repo is up to date here: github.com/BrunoLevy/Gr...
Image: OpenSCAD test suite (displayed in a retro-futurist style for fun...)
Image: OpenSCAD test suite (displayed in a retro-futurist style for fun...)