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BREAKING NEWS

LATEST POSTS

  • Replit – Create apps on a phone with no code skills

    pIXELsHAM.com
    Feb 14, 2025
    IOS

    https://replit.com/mobile

    Views : 29
  • Light-A-Video – Training-free Video Relighting via Progressive Light Fusion

    pIXELsHAM.com
    Feb 14, 2025
    A.I., lighting

    https://github.com/bcmi/Light-A-Video

    Views : 351
  • AI and the Law – InvokeAI Got a Copyright for an Image Made Entirely With AI. Here’s How

    pIXELsHAM.com
    Feb 14, 2025
    A.I., ves

    https://www.cnet.com/tech/services-and-software/this-company-got-a-copyright-for-an-image-made-entirely-with-ai-heres-how

    The image, called A Single Piece of American Cheese, was created using Invoke’s AI editing platform.

    In a side by side look, you can see how the original (left, screenshotted from the time lapse creation video) was edited to become the final image (right).

    Views : 42
  • Portuguese graffiti artist – Vile

    pIXELsHAM.com
    Feb 14, 2025
    design

    https://vilegraffiti.com

    https://mymodernmet.com/vile-illusion-graffiti/

    Views : 263
  • Zonos – This new AI text-to-speech BEATS EVERYTHING. Full expressive control

    pIXELsHAM.com
    Feb 14, 2025
    A.I.

    Views : 278
  • Micro LED displays

    pIXELsHAM.com
    Feb 14, 2025
    hardware

    https://arstechnica.com/gadgets/2025/02/an-update-on-highly-anticipated-and-elusive-micro-led-displays

    Micro LED displays are a cutting-edge technology that promise significant improvements over existing display methods like OLED and LCD. By using tiny, individual LEDs for each pixel, these displays can deliver exceptional brightness, contrast, and energy efficiency. Their inherent durability and superior performance make them an attractive option for high-end consumer electronics, wearable devices, and even large-scale display panels.

    The technology is seen as the future of display innovation, aiming to merge high-quality visuals with low power consumption and long-lasting performance.

    Despite their advantages, micro LED displays face substantial manufacturing hurdles that have slowed their mass-market adoption. The production process requires the precise transfer and alignment of millions of microscopic LEDs onto a substrate—a task that is both technically challenging and cost-intensive. Issues with yield, scalability, and quality control continue to persist, making it difficult to achieve the economies of scale necessary for widespread commercial use. As industry leaders invest heavily in research and development to overcome these obstacles, the technology remains on the cusp of becoming a viable alternative to current display technologies.

    Views : 308
  • Hide a message in an emoji 😀󠅘󠅤󠅤󠅠󠅣󠄪󠄟󠄟󠅧󠅧󠅧󠄞󠅠󠅙󠅨󠅕󠅜󠅣󠅘󠅑󠅝󠄞󠅓󠅟󠅝

    pIXELsHAM.com
    Feb 14, 2025
    cool

    https://emoji.paulbutler.org/?mode=encode

    😀󠅘󠅤󠅤󠅠󠅣󠄪󠄟󠄟󠅧󠅧󠅧󠄞󠅠󠅙󠅨󠅕󠅜󠅣󠅘󠅑󠅝󠄞󠅓󠅟󠅝

    https://paulbutler.org/2025/smuggling-arbitrary-data-through-an-emoji

    Views : 88
  • Arvid Schneider – Stunning Environments in Gaea | Houdini

    pIXELsHAM.com
    Feb 13, 2025
    modeling, production

    Views : 19
  • The Visual Effects of Kingdom of the Planet of the Apes | Weta FX

    pIXELsHAM.com
    Feb 12, 2025
    trailers

    Views : 24
  • Why the Prusa XL is the Best Multicolor Printer

    pIXELsHAM.com
    Feb 12, 2025
    3Dprinting

    Views : 45
  • Nvidia CUDA Toolkit – a development environment for creating high-performance, GPU-accelerated applications

    pIXELsHAM.com
    Feb 12, 2025
    software

    https://developer.nvidia.com/cuda-toolkit

    With it, you can develop, optimize, and deploy your applications on GPU-accelerated embedded systems, desktop workstations, enterprise data centers, cloud-based platforms, and supercomputers. The toolkit includes GPU-accelerated libraries, debugging and optimization tools, a C/C++ compiler, and a runtime library.

    https://www.youtube.com/watch?v=-P28LKWTzrI

    Check your Cuda version, it will be the release version here:

    >>> nvcc --version
    nvcc: NVIDIA (R) Cuda compiler driver
    Copyright (c) 2005-2024 NVIDIA Corporation
    Built on Wed_Apr_17_19:36:51_Pacific_Daylight_Time_2024
    Cuda compilation tools, release 12.5, V12.5.40
    Build cuda_12.5.r12.5/compiler.34177558_0

    or from here:

    >>> nvidia-smi
    Mon Jun 16 12:35:20 2025
    +-----------------------------------------------------------------------------------------+
    | NVIDIA-SMI 555.85                 Driver Version: 555.85         CUDA Version: 12.5     |
    |-----------------------------------------+------------------------+----------------------+
    Views : 127
  • Topaz Labs Project Starlight – The first and only diffusion-based AI model for enhancing video

    pIXELsHAM.com
    Feb 12, 2025
    A.I.

    https://www.topazlabs.com

    Views : 1,431
  • Stocksnap.io – Free Stock Photos

    pIXELsHAM.com
    Feb 12, 2025
    photography, reference

    https://stocksnap.io

    Views : 24
  • Mistral.ai Le Chat – high-quality pre-trained knowledge of Mistral models with recent information balanced across evidence-based responses

    pIXELsHAM.com
    Feb 12, 2025
    A.I.

    https://mistral.ai/en/news/all-new-le-chat

    Views : 34
  • Simulate Realistic Camera Movement in Blender with a Real Camera

    pIXELsHAM.com
    Feb 11, 2025
    blender

    https://80.lv/articles/this-python-script-lets-you-simulate-realistic-camera-movement-in-blender

    Views : 34
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FEATURED POSTS

  • Composition – Basic cinematography

    pIXELsHAM.com
    May 18, 2018
    composition, lighting, photography

    https://www.cs.williams.edu/~morgan/cs371-f14/reading/cinematography.pdf

    McGuire_cinematography_compressedDownload
    (more…)
    Views : 1,692
  • Molypix.ai – AI creating custom posters, invitations, postcards, birthday cards

    pIXELsHAM.com
    Aug 21, 2024
    A.I., design

    https://molypix.ai/

     

     

    Views : 33
  • Levon Biss – Insects Macro Photos Made up of 10K Images Captured with a Microscope Lens

    pIXELsHAM.com
    Apr 28, 2016
    photography

    http://petapixel.com/2016/04/25/macro-photos-made-10k-images-captured-microscope-lens/

    Views : 1,053
  • Photography basics: Solid Angle measures

    pIXELsHAM.com
    Aug 1, 2020
    Featured, lighting, photography

    http://www.calculator.org/property.aspx?name=solid+angle

     

     

    A measure of how large the object appears to an observer looking from that point. Thus. A measure for objects in the sky. Useful to retuen the size of the sun and moon… and in perspective, how much of their contribution to lighting. Solid angle can be represented in ‘angular diameter’ as well.

    http://en.wikipedia.org/wiki/Solid_angle

     

    http://www.mathsisfun.com/geometry/steradian.html

     

    A solid angle is expressed in a dimensionless unit called a steradian (symbol: sr). By default in terms of the total celestial sphere and before atmospheric’s scattering, the Sun and the Moon subtend fractional areas of 0.000546% (Sun) and 0.000531% (Moon).

     

    http://en.wikipedia.org/wiki/Solid_angle#Sun_and_Moon

     

    On earth the sun is likely closer to 0.00011 solid angle after athmospheric scattering. The sun as perceived from earth has a diameter of 0.53 degrees. This is about 0.000064 solid angle.

    http://www.numericana.com/answer/angles.htm

     

    The mean angular diameter of the full moon is 2q = 0.52° (it varies with time around that average, by about 0.009°). This translates into a solid angle of 0.0000647 sr, which means that the whole night sky covers a solid angle roughly one hundred thousand times greater than the full moon.

     

    More info

     

    http://lcogt.net/spacebook/using-angles-describe-positions-and-apparent-sizes-objects

    http://amazing-space.stsci.edu/glossary/def.php.s=topic_astronomy

     

    Angular Size

    The apparent size of an object as seen by an observer; expressed in units of degrees (of arc), arc minutes, or arc seconds. The moon, as viewed from the Earth, has an angular diameter of one-half a degree.

     

    The angle covered by the diameter of the full moon is about 31 arcmin or 1/2°, so astronomers would say the Moon’s angular diameter is 31 arcmin, or the Moon subtends an angle of 31 arcmin.

    Views : 3,541
  • What Is The Resolution and view coverage Of The human Eye. And what distance is TV at best?

    pIXELsHAM.com
    Nov 20, 2019
    colour, Featured, photography

    https://www.discovery.com/science/mexapixels-in-human-eye

    About 576 megapixels for the entire field of view.

     

    Consider a view in front of you that is 90 degrees by 90 degrees, like looking through an open window at a scene. The number of pixels would be:
    90 degrees * 60 arc-minutes/degree * 1/0.3 * 90 * 60 * 1/0.3 = 324,000,000 pixels (324 megapixels).

     

    At any one moment, you actually do not perceive that many pixels, but your eye moves around the scene to see all the detail you want. But the human eye really sees a larger field of view, close to 180 degrees. Let’s be conservative and use 120 degrees for the field of view. Then we would see:

    120 * 120 * 60 * 60 / (0.3 * 0.3) = 576 megapixels.

    Or.

    7 megapixels for the 2 degree focus arc… + 1 megapixel for the rest.

    https://clarkvision.com/articles/eye-resolution.html

     

    Details in the post

    (more…)

    Views : 11,161
  • Photography basics: Why Use a (MacBeth) Color Chart?

    pIXELsHAM.com
    Aug 24, 2018
    colour, lighting, photography

    Start here: https://www.pixelsham.com/2013/05/09/gretagmacbeth-color-checker-numeric-values/

     

    https://www.studiobinder.com/blog/what-is-a-color-checker-tool/

     

     

     

     

    In LightRoom

     

    in Final Cut

     

    in Nuke

    Note: In Foundry’s Nuke, the software will map 18% gray to whatever your center f/stop is set to in the viewer settings (f/8 by default… change that to EV by following the instructions below).
    You can experiment with this by attaching an Exposure node to a Constant set to 0.18, setting your viewer read-out to Spotmeter, and adjusting the stops in the node up and down. You will see that a full stop up or down will give you the respective next value on the aperture scale (f8, f11, f16 etc.).

    One stop doubles or halves the amount or light that hits the filmback/ccd, so everything works in powers of 2.
    So starting with 0.18 in your constant, you will see that raising it by a stop will give you .36 as a floating point number (in linear space), while your f/stop will be f/11 and so on.

     

    If you set your center stop to 0 (see below) you will get a relative readout in EVs, where EV 0 again equals 18% constant gray.

     

    In other words. Setting the center f-stop to 0 means that in a neutral plate, the middle gray in the macbeth chart will equal to exposure value 0. EV 0 corresponds to an exposure time of 1 sec and an aperture of f/1.0.

     

    This will set the sun usually around EV12-17 and the sky EV1-4 , depending on cloud coverage.

     

    To switch Foundry’s Nuke’s SpotMeter to return the EV of an image, click on the main viewport, and then press s, this opens the viewer’s properties. Now set the center f-stop to 0 in there. And the SpotMeter in the viewport will change from aperture and fstops to EV.

    Views : 2,506
  • Sculptor works an art piece with marble

    pIXELsHAM.com
    Mar 30, 2019
    design

    Views : 943
  • About green screens

    pIXELsHAM.com
    Nov 7, 2018
    colour, lighting, production

    hackaday.com/2015/02/07/how-green-screen-worked-before-computers/

     

    www.newtek.com/blog/tips/best-green-screen-materials/

     

    www.chromawall.com/blog//chroma-key-green

     

     

    Chroma Key Green, the color of green screens is also known as Chroma Green and is valued at approximately 354C in the Pantone color matching system (PMS).

     

    Chroma Green can be broken down in many different ways. Here is green screen green as other values useful for both physical and digital production:

     

    Green Screen as RGB Color Value: 0, 177, 64
    Green Screen as CMYK Color Value: 81, 0, 92, 0
    Green Screen as Hex Color Value: #00b140
    Green Screen as Websafe Color Value: #009933

     

    Chroma Key Green is reasonably close to an 18% gray reflectance.

     

    Illuminate your green screen with an uniform source with less than 2/3 EV variation.
    The level of brightness at any given f-stop should be equivalent to a 90% white card under the same lighting.

    Views : 1,418
Views : 18,615

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