Duarte David
@duartedavid.bsky.social
Raytracers are my "hello world"s
he/him
he/him
Reposted by Duarte David
I got the first post about direct lighting material occlusion up on my blog. On this one I go over the commonly used micro-occlusion approach and its limitations, and I start digging into micro-shadowing as an improvement.
irradiance.ca/posts/micros...
irradiance.ca/posts/micros...
December 20, 2025 at 9:31 PM
I got the first post about direct lighting material occlusion up on my blog. On this one I go over the commonly used micro-occlusion approach and its limitations, and I start digging into micro-shadowing as an improvement.
irradiance.ca/posts/micros...
irradiance.ca/posts/micros...
Reposted by Duarte David
The final story in our music series is live!
How Simogo built Sayonara Wild Hearts' best stage
We talk with four members of the team about how "Begin Again" came about, why it took them a year to finish it, and the challenges of building something new.
www.designroom.site
December 19, 2025 at 6:09 PM
The final story in our music series is live!
Reposted by Duarte David
Super happy and honored to share that our paper "BSP-OT: Sparse transport plans between discrete measures in log-linear time" won a *Best paper award* at SIGGRAPH Asia 2025!
If you are here, come see my presentation about this work Wednesday afternoon!
Many thanks to the award committee!
If you are here, come see my presentation about this work Wednesday afternoon!
Many thanks to the award committee!
December 15, 2025 at 3:31 AM
Super happy and honored to share that our paper "BSP-OT: Sparse transport plans between discrete measures in log-linear time" won a *Best paper award* at SIGGRAPH Asia 2025!
If you are here, come see my presentation about this work Wednesday afternoon!
Many thanks to the award committee!
If you are here, come see my presentation about this work Wednesday afternoon!
Many thanks to the award committee!
Reposted by Duarte David
Giving a presentation of our work on Lagrangian topological optimization with Charles Dapogny and Edouard Oudet at the Inria-LJLL seminar:
project.inria.fr/rencontreslj...
preprint here: arxiv.org/abs/2409.07873
project.inria.fr/rencontreslj...
preprint here: arxiv.org/abs/2409.07873
December 15, 2025 at 8:08 AM
Giving a presentation of our work on Lagrangian topological optimization with Charles Dapogny and Edouard Oudet at the Inria-LJLL seminar:
project.inria.fr/rencontreslj...
preprint here: arxiv.org/abs/2409.07873
project.inria.fr/rencontreslj...
preprint here: arxiv.org/abs/2409.07873
Reposted by Duarte David
Our #SIGGRAPHAsia 2025 paper "Sample Space Partitioning and Spatiotemporal Resampling for Specular Manifold Sampling" improves #realtime #caustics rendering.
Project Page: graphics.cs.utah.edu/research/pro...
@daqilin.bsky.social @tizian.bsky.social
Project Page: graphics.cs.utah.edu/research/pro...
@daqilin.bsky.social @tizian.bsky.social
December 14, 2025 at 10:12 PM
Our #SIGGRAPHAsia 2025 paper "Sample Space Partitioning and Spatiotemporal Resampling for Specular Manifold Sampling" improves #realtime #caustics rendering.
Project Page: graphics.cs.utah.edu/research/pro...
@daqilin.bsky.social @tizian.bsky.social
Project Page: graphics.cs.utah.edu/research/pro...
@daqilin.bsky.social @tizian.bsky.social
Reposted by Duarte David
My general recommendation: don't ever miss a talk by Chris Wyman, regardless of the topic.
Worth watching presentation, also provides some background info on how ReSTIR came to be and where it is heading: "ReSTIR: Traveling the Path of Reuse" www.youtube.com/watch?v=MRg9...
I3D 2025 Chris Wyman's Keynote "ReSTIR: Traveling the Path of Reuse"
YouTube video by I3D Symposium
www.youtube.com
August 4, 2025 at 3:54 AM
My general recommendation: don't ever miss a talk by Chris Wyman, regardless of the topic.
Reposted by Duarte David
Posting an older article on "Probability Theory for Physically Based Rendering", using tomorrow's #thisisigad Graphics Guild lecture as an excuse:
jacco.ompf2.com/2019/12/11/p...
There is also a part 2.
jacco.ompf2.com/2019/12/11/p...
There is also a part 2.
December 11, 2025 at 8:35 PM
Posting an older article on "Probability Theory for Physically Based Rendering", using tomorrow's #thisisigad Graphics Guild lecture as an excuse:
jacco.ompf2.com/2019/12/11/p...
There is also a part 2.
jacco.ompf2.com/2019/12/11/p...
There is also a part 2.
Reposted by Duarte David
After years (!) of work, Directional 3.0 (avaxman.github.io/Directional/) is finally released!
December 9, 2025 at 8:55 PM
After years (!) of work, Directional 3.0 (avaxman.github.io/Directional/) is finally released!
Reposted by Duarte David
After nine years of development, meshoptimizer has reached its first major version, 1.0!
This release focuses on improvements in clusterization and simplification as well as stabilization. Here's a release announcement with more details on past, present and future; please RT!
meshoptimizer.org/v1
This release focuses on improvements in clusterization and simplification as well as stabilization. Here's a release announcement with more details on past, present and future; please RT!
meshoptimizer.org/v1
🐇 meshoptimizer v1.0
Mesh optimization library that makes meshes smaller and faster to render
meshoptimizer.org
December 8, 2025 at 4:56 PM
After nine years of development, meshoptimizer has reached its first major version, 1.0!
This release focuses on improvements in clusterization and simplification as well as stabilization. Here's a release announcement with more details on past, present and future; please RT!
meshoptimizer.org/v1
This release focuses on improvements in clusterization and simplification as well as stabilization. Here's a release announcement with more details on past, present and future; please RT!
meshoptimizer.org/v1
Reposted by Duarte David
i actually made a talk about them
www.youtube.com/watch?v=INgS...
www.youtube.com/watch?v=INgS...
Bsides TLL2025 - Lyra Rebane (Committing CSS Crimes for fun and profit)
YouTube video by BSides Tallinn
www.youtube.com
December 5, 2025 at 8:05 AM
i actually made a talk about them
www.youtube.com/watch?v=INgS...
www.youtube.com/watch?v=INgS...
Reposted by Duarte David
I realize “Don’t suppress the wiggles! They’re trying to tell you something!” means something very different for me than most people.
It comes from one of those insightful papers where the idea would have stuck with me regardless, but the lede is such perfect writing it really anchors in my memory
It comes from one of those insightful papers where the idea would have stuck with me regardless, but the lede is such perfect writing it really anchors in my memory
November 26, 2025 at 6:10 PM
I realize “Don’t suppress the wiggles! They’re trying to tell you something!” means something very different for me than most people.
It comes from one of those insightful papers where the idea would have stuck with me regardless, but the lede is such perfect writing it really anchors in my memory
It comes from one of those insightful papers where the idea would have stuck with me regardless, but the lede is such perfect writing it really anchors in my memory
Reposted by Duarte David
The Graphics Replicability Stamp Initiative (GRSI, www.replicabilitystamp.org), a community-driven initiative to promote replicability in Graphics research, is seeking volunteers.
More details in the 'Volunteering' section of the home page.
More details in the 'Volunteering' section of the home page.
Graphics Replicability Stamp Initiative
www.replicabilitystamp.org
November 21, 2025 at 12:16 PM
The Graphics Replicability Stamp Initiative (GRSI, www.replicabilitystamp.org), a community-driven initiative to promote replicability in Graphics research, is seeking volunteers.
More details in the 'Volunteering' section of the home page.
More details in the 'Volunteering' section of the home page.
Reposted by Duarte David
I'm just saying - the promise of C1 and sometimes C2 is... not actually true in general, and it's a giant pain in the arse to make it true. That's my experience anyway.
November 12, 2025 at 8:53 AM
I'm just saying - the promise of C1 and sometimes C2 is... not actually true in general, and it's a giant pain in the arse to make it true. That's my experience anyway.
Reposted by Duarte David
#SIGGRAPH2025 Advances in Real-Time Rendering in Games course talk recording of "Strand-Based Hair And Fur Rendering In Indiana Jones and The Great Circle" by Sergei Kulikov from MachineGames is now online: youtu.be/jSE1XXBEK-w
SIGGRAPH 2025 Advances: STRAND-BASED HAIR AND FUR RENDERING IN INDIANA JONES AND THE GREAT CIRCLE
YouTube video by SIGGRAPH Advances in Real-Time Rendering
youtu.be
November 11, 2025 at 11:45 PM
#SIGGRAPH2025 Advances in Real-Time Rendering in Games course talk recording of "Strand-Based Hair And Fur Rendering In Indiana Jones and The Great Circle" by Sergei Kulikov from MachineGames is now online: youtu.be/jSE1XXBEK-w
Reposted by Duarte David
learned today that boost.polygon has no dependencies on the rest of boost, and it can do a 2D Voronoi diagram for line segments, which means it can be used to find the max-inscribed circle of a polygon (which is much harder than min-containing circle!). And it's quite fast, too.
October 11, 2025 at 4:02 PM
learned today that boost.polygon has no dependencies on the rest of boost, and it can do a 2D Voronoi diagram for line segments, which means it can be used to find the max-inscribed circle of a polygon (which is much harder than min-containing circle!). And it's quite fast, too.
Reposted by Duarte David
Computing the exact bijection of the optimal transport (OT) problem between very large point sets is completely untractable…
In our SIGGRAPH Asia 2025 paper: “BSP-OT: Sparse transport plans between discrete measures in log-linear time” we get one with typically 1% of error in a few seconds on CPU!
In our SIGGRAPH Asia 2025 paper: “BSP-OT: Sparse transport plans between discrete measures in log-linear time” we get one with typically 1% of error in a few seconds on CPU!
October 1, 2025 at 1:55 PM
Computing the exact bijection of the optimal transport (OT) problem between very large point sets is completely untractable…
In our SIGGRAPH Asia 2025 paper: “BSP-OT: Sparse transport plans between discrete measures in log-linear time” we get one with typically 1% of error in a few seconds on CPU!
In our SIGGRAPH Asia 2025 paper: “BSP-OT: Sparse transport plans between discrete measures in log-linear time” we get one with typically 1% of error in a few seconds on CPU!
Reposted by Duarte David
RING meeting in Nancy,
Cyprien Plateau--Holleville presented presented his awesome work on exact integration of the differential quantities involved in Partial Optimal Transport. And that's not all: It comes with a combined physsim - Optimal Transport - rendering on the GPU !
Cyprien Plateau--Holleville presented presented his awesome work on exact integration of the differential quantities involved in Partial Optimal Transport. And that's not all: It comes with a combined physsim - Optimal Transport - rendering on the GPU !
September 18, 2025 at 8:48 AM
RING meeting in Nancy,
Cyprien Plateau--Holleville presented presented his awesome work on exact integration of the differential quantities involved in Partial Optimal Transport. And that's not all: It comes with a combined physsim - Optimal Transport - rendering on the GPU !
Cyprien Plateau--Holleville presented presented his awesome work on exact integration of the differential quantities involved in Partial Optimal Transport. And that's not all: It comes with a combined physsim - Optimal Transport - rendering on the GPU !
Reposted by Duarte David
Really excited to share this with you all! The website is already live at anadodik.github.io/publication/...
August 5, 2025 at 3:59 PM
Really excited to share this with you all! The website is already live at anadodik.github.io/publication/...
Reposted by Duarte David
I found out about this gorgeous new French animated feature today.
Western 2D animation never fully died; amongst other places, it lives on in France where places like Gobelins l'école de l'image have pushed the art form to spectacular heights.
www.youtube.com/watch?v=nvHx...
Western 2D animation never fully died; amongst other places, it lives on in France where places like Gobelins l'école de l'image have pushed the art form to spectacular heights.
www.youtube.com/watch?v=nvHx...
AMÉLIE ET LA MÉTAPHYSIQUE DES TUBES - Bande annonce
YouTube video by Haut et Court
www.youtube.com
July 10, 2025 at 12:00 AM
I found out about this gorgeous new French animated feature today.
Western 2D animation never fully died; amongst other places, it lives on in France where places like Gobelins l'école de l'image have pushed the art form to spectacular heights.
www.youtube.com/watch?v=nvHx...
Western 2D animation never fully died; amongst other places, it lives on in France where places like Gobelins l'école de l'image have pushed the art form to spectacular heights.
www.youtube.com/watch?v=nvHx...
Reposted by Duarte David
GenAI has polluted image search results, especially for animal pics. It’s now basically impossible to find accurate art references.
Enter this: a repository of open-access, AI-free images of wild & exotic taxa. Artists creating *without AI* have blanket permission for derivative/transformative use.
Enter this: a repository of open-access, AI-free images of wild & exotic taxa. Artists creating *without AI* have blanket permission for derivative/transformative use.
Exotic Animal Photo Reference Repository
www.animal-photo-references.com
July 7, 2025 at 10:37 PM
Reposted by Duarte David
Wow I’m super excited for this. Milt Kahl’s work is my favorite of the nine old men; I love how angular he pushes forms. His work on 101 Dalmatians, Sword in the Stone, and Jungle Book in particular is IMO among the best character animation ever drawn.
andreasdeja.blogspot.com/2025/07/milt...
andreasdeja.blogspot.com/2025/07/milt...
July 6, 2025 at 5:32 PM
Wow I’m super excited for this. Milt Kahl’s work is my favorite of the nine old men; I love how angular he pushes forms. His work on 101 Dalmatians, Sword in the Stone, and Jungle Book in particular is IMO among the best character animation ever drawn.
andreasdeja.blogspot.com/2025/07/milt...
andreasdeja.blogspot.com/2025/07/milt...
Reposted by Duarte David
Got my hobby renderer compiled and up and running (slowly) on the silly little handheld Raspberry Pi CM5 cyberdeck thingy that I ordered on a whim recently.
Is this a particularly practical productive device? No! But it sure is fun! The keyboard is better than I expected.
Is this a particularly practical productive device? No! But it sure is fun! The keyboard is better than I expected.
July 6, 2025 at 6:00 AM
Got my hobby renderer compiled and up and running (slowly) on the silly little handheld Raspberry Pi CM5 cyberdeck thingy that I ordered on a whim recently.
Is this a particularly practical productive device? No! But it sure is fun! The keyboard is better than I expected.
Is this a particularly practical productive device? No! But it sure is fun! The keyboard is better than I expected.
Reposted by Duarte David
Speaking of SIGGRAPH, as usual I'm assembling a list of the physics animation-y subset of the technical papers, with links:
https://www.physicsbasedanimation.com/2025/05/19/siggraph-north-america-2025/
https://www.physicsbasedanimation.com/2025/05/19/siggraph-north-america-2025/
www.physicsbasedanimation.com
June 19, 2025 at 1:29 AM
Speaking of SIGGRAPH, as usual I'm assembling a list of the physics animation-y subset of the technical papers, with links:
https://www.physicsbasedanimation.com/2025/05/19/siggraph-north-america-2025/
https://www.physicsbasedanimation.com/2025/05/19/siggraph-north-america-2025/
Reposted by Duarte David
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...
Reposted by Duarte David
The SIGGRAPH Physically Based Shading course is back this year: blog.selfshadow.com/publications...
SIGGRAPH 2025 Course: Physically Based Shading in Theory and Practice
blog.selfshadow.com
June 10, 2025 at 3:19 PM
The SIGGRAPH Physically Based Shading course is back this year: blog.selfshadow.com/publications...