David G Yu

real-time graphics, smooth surfaces, tools for filmmakers, virtual and augmented realities, other musical instruments, large incompetent cat, often baking pies

[David G Yu @davidgyu]

Crepuscular cuspids #caturday #cleopatraofbernal

[David G Yu @davidgyu]

30 years of OpenGL. In 1992 wide availability of high level shading languages was still years away. A complete and readable specification made it easy to get started. This early example still builds and runs on today's latest systems. @opengl https://t.co/uJreJ2OnZQ

[David G Yu @davidgyu]

@drwave Do the Porter and Duff compositing operator names help here, i.e. A out B and B out A? Might not satisfy your desire for intuitive and easy to recall, though.

[David G Yu @davidgyu]

This is a simple test asset in usdview showing linear blend skinning followed by catmull-clark subdivision refinement both executed using Metal compute shaders.

[David G Yu @davidgyu]

We've just released Hydra Storm for Metal on macOS as part of USD v22.05! Huge thanks to the teams @apple and @pixar that made this possible @openusd @opensubdiv #applemacstudio https://t.co/4b7xC0y4PP

[David G Yu @davidgyu]

She’s the perfect size

#caturday #cleopatraofbernal #applemacstudio

[David G Yu @davidgyu]

@drwave @jsnell Nice day! The variation of the local microclimates can be quite striking. Totally recommend getting a weather station. We setup a @weatherflow a couple of years ago and it's neat to be able to track the local temp, wind, rain, etc.

[Pixar's OpenSubdiv @OpenSubdiv]

USD 21.08 includes some nice improvements to the use of OpenSubdiv in Hydra Storm for smooth face varying uvs and GPU refinement and more. Check out the full release notes here: https://t.co/16y7kc4Yli

[David G Yu @davidgyu]

@maxliani @MoldyMagnet @RupeshMandke Indeed. That's closer to where we're going with the updated implementation. Taking advantage of info that's implicit in the drawing pipeline, so that there is less need for additional data to lookup and store. Nice to have barycentric coords available directly in the shader now!

[David G Yu @davidgyu]

@MoldyMagnet @maxliani @RupeshMandke We're refreshing this implementation. Better, stronger, faster. Should all land in the dev branch pretty soon.

[Pixar's OpenSubdiv @OpenSubdiv]

Warm up your cores for winter, OpenSubdiv v3.4.4 is now available! https://t.co/QTClstSCsv

[David G Yu @davidgyu]

Congratulations to all of this years @TheAcademy Sci-Tech award recipients! Enjoying being able to watch the awards ceremony today https://t.co/2SqBCJM9pH

[David G Yu @davidgyu]

What would you do with an excellent mechanical display? Happy New year! @vestaboard

[David G Yu @davidgyu]

Check out the special guests and make your own SIP cocktail! this is going to be fun!

[David G Yu @davidgyu]

The @Exploratorium is a special place to me and to everyone who has visited, but you may not yet know of the extent and positive impact of their many programs. Please join this free virtual event tonight to learn more and to support this great institution! https://t.co/B9ECeAE9p0

[Pixar's OpenSubdiv @OpenSubdiv]

Smooth surfaces for springtime! Our latest v3.4.3 release is available now with bug fixes and configuration improvements to make it even easier to use OpenSubdiv in your projects and applications: https://t.co/ljSlYHXULd

[David G Yu @davidgyu]

@Plagman2 Sorry to hear! Good girl!

[David G Yu @davidgyu]

Have you all enjoyed this amazing performance by Hauschka? - Boiler Room In Stereo https://t.co/WHo4ZRarhQ including multiple E-bows and other analog and electromechanical strategies. One of my favorites.

[David G Yu @davidgyu]

Wow! Amazing performance by @boniver @ChaseCenter last night! Nice video about the production design including stunning contributions by @michaelbrowndesign @whitevoid_gmbh #christopherbauder https://t.co/x4qIQN47z2

[David G Yu @davidgyu]

@thomasthomassen @OpenSubdiv Previously it was possible to operate on double precision data, e.g. point positions. Now you can use double precision when computing stencil weights and patch evaluation weights too.