BREAKING NEWS
LATEST POSTS
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Ben McEwan – Deconstructing Despill Algorithms
Despilling is arguably the most important step to get right when pulling a key. A great despill can often hide imperfections in your alpha channel & prevents tedious painting to manually fix edges.
benmcewan.com/blog/2018/05/20/understanding-despill-algorithms/
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Genex – Generative World Explorer
https://generative-world-explorer.github.io
Planning with partial observation is a central challenge in embodied AI. A majority of prior works have tackled this challenge by developing agents that physically explore their environment to update their beliefs about the world state. However, humans can imagine unseen parts of the world through a mental exploration and revise their beliefs with imagined observations. Such updated beliefs can allow them to make more informed decisions at the current step, without having to physically explore the world first. To achieve this human-like ability, we introduce the Generative World Explorer (Genex), a video generation model that allows an agent to mentally explore a large-scale 3D world (e.g., urban scenes) and acquire imagined observations to update its belief about the world .
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KeenTools 2024.3 – FaceTracker for Blender Stable
FaceTracker for Blender is:
– Markerless facial mocap: capture facial performance and head motion with a matching geometry
– Custom face mesh generation: create digital doubles using snapshots of video frames (available with FaceBundle)
– 3D texture mapping: beauty work, (de)ageing, relighting
– 3D compositing: add digital make-up, dynamic VFX, hair and more
– (NEW) Animation retargeting: convert facial animation to ARKit blendshapes or Rigify rig in one clickhttps://keentools.io/products/facetracker-for-blender
FEATURED POSTS
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Python and TCL: Tips and Tricks for Foundry Nuke
www.andreageremia.it/tutorial_python_tcl.html
https://www.gatimedia.co.uk/list-of-knobs-2
https://learn.foundry.com/nuke/developers/63/ndkdevguide/knobs-and-handles/knobtypes.html
http://www.andreageremia.it/tutorial_python_tcl.html
http://thoughtvfx.blogspot.com/2012/12/nuke-tcl-tips.html
Check final image quality
https://www.compositingpro.com/tech-check-compositing-shot-in-nuke/Local copy:
http://pixelsham.com/wp-content/uploads/2023/03/compositing_pro_tech_check_nuke_script.nkNuke tcl procedures
https://www.gatimedia.co.uk/nuke-tcl-proceduresKnobs
https://learn.foundry.com/nuke/developers/63/ndkdevguide/knobs-and-handles/knobtypes.html
(more…)
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Mysterious animation wins best illusion of 2011 – Motion silencing illusion
The 2011 Best Illusion of the Year uses motion to render color changes invisible, and so reveals a quirk in our visual systems that is new to scientists.
https://en.wikipedia.org/wiki/Motion_silencing_illusion
“It is a really beautiful effect, revealing something about how our visual system works that we didn’t know before,” said Daniel Simons, a professor at the University of Illinois, Champaign-Urbana. Simons studies visual cognition, and did not work on this illusion. Before its creation, scientists didn’t know that motion had this effect on perception, Simons said.
A viewer stares at a speck at the center of a ring of colored dots, which continuously change color. When the ring begins to rotate around the speck, the color changes appear to stop. But this is an illusion. For some reason, the motion causes our visual system to ignore the color changes. (You can, however, see the color changes if you follow the rotating circles with your eyes.)
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Sun cone angle (angular diameter) as perceived by earth viewers
Also see:
https://www.pixelsham.com/2020/08/01/solid-angle-measures/
The cone angle of the sun refers to the angular diameter of the sun as observed from Earth, which is related to the apparent size of the sun in the sky.
The angular diameter of the sun, or the cone angle of the sunlight as perceived from Earth, is approximately 0.53 degrees on average. This value can vary slightly due to the elliptical nature of Earth’s orbit around the sun, but it generally stays within a narrow range.
Here’s a more precise breakdown:
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- Average Angular Diameter: About 0.53 degrees (31 arcminutes)
- Minimum Angular Diameter: Approximately 0.52 degrees (when Earth is at aphelion, the farthest point from the sun)
- Maximum Angular Diameter: Approximately 0.54 degrees (when Earth is at perihelion, the closest point to the sun)
This angular diameter remains relatively constant throughout the day because the sun’s distance from Earth does not change significantly over a single day.
To summarize, the cone angle of the sun’s light, or its angular diameter, is typically around 0.53 degrees, regardless of the time of day.
https://en.wikipedia.org/wiki/Angular_diameter
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