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Guillaume Coiffier

@guillaumecoiffier

Post-doc in Geometry Processing at the Catholic University of Louvain https://gcoiffier.github.io/ https://github.com/GCoiffier

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Latest posts by Guillaume Coiffier @guillaumecoiffier

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Signez la pétition Sauvons le Palais de la découverte

SAUVONS LE PALAIS DE LA DÉCOUVERTE

www.change.org/p/sauvons-le...

(Avis personnel : des musées comme le Grand Palais, il y en a plein à Paris. Il n'y a qu'un Palais de la Découverte.)

14.06.2025 05:57 👍 177 🔁 109 💬 4 📌 7

The screenshot is from Graphite, yes. But I realized that it was not configured to use my Nvidia's GPU, but only the motherboard's chipset 😅 That's my bad.

Now it works way faster! (around 5 fps, but it's manageable)

21.03.2025 15:45 👍 2 🔁 0 💬 1 📌 0
A 3D Lidar scan of the Matterhorn mountain in Switzerland, rendered in levels of gray over a white background

A 3D Lidar scan of the Matterhorn mountain in Switzerland, rendered in levels of gray over a white background

Nice! When I saw the whole country was scanned, I had to look at what the Matterhorn looked like and I was not dissapointed (although I cooked my CPU to render ~50M points. I guess @brunolevy01.bsky.social 's graphite is not designed for this use case 😅)

21.03.2025 13:50 👍 3 🔁 1 💬 1 📌 0

May I also ask what's wrong with the SDF -> Marching cubes -> Remeshing approach?

27.02.2025 19:40 👍 1 🔁 0 💬 1 📌 0
A scan of a ferret brain made of polygonal slices, visualized in the Graphite software

A scan of a ferret brain made of polygonal slices, visualized in the Graphite software

Hello :)

Sounds like a cool surface reconstruction project!
Here is a link to the data in .ply : filesender.belnet.be?s=download&t...

with z being 1.5*x.

And here is how it looks in @brunolevy01.bsky.social 's software

27.02.2025 19:40 👍 2 🔁 0 💬 1 📌 0
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Constructive Solid Geometry on Neural Signed Distance Fields DOI: https://doi.org/10.1145/3610548.3618170 SA Conference Papers '23: SIGGRAPH Asia 2023 Conference Papers, Sydney, NSW, Australia, December 2023

Pointing out a common misconception (that I also used to be guilty of): min(s1,s2) and max(s1,s2) are **not** signed distance functions, but lower/upper bounds on the true SDF of the intersection/union.

iquilezles.org/articles/int...
dl.acm.org/doi/fullHtml...

24.02.2025 10:24 👍 12 🔁 1 💬 1 📌 0
Post image

The 1st SGP deadline is in 3 weeks!: if you submit, you will be notified of the acceptance decision on March 15th, leaving you with almost one month to resubmit your revised work to our 2nd deadline of April 11th (if rejected), and with over 3 months to get a visa (if accepted)

17.01.2025 15:33 👍 9 🔁 3 💬 0 📌 1