Global illumination algorithms

Image-based lighting

Image-based lighting (IBL) is a 3D rendering technique which involves capturing an omnidirectional representation of real-world light information as an image, typically using a 360° camera. This image is then projected onto a dome or sphere analogously to environment mapping, and this is used to simulate the lighting for the objects in the scene. This allows highly detailed real-world lighting to be used to light a scene, instead of trying to accurately model illumination using an existing rendering technique. Image-based lighting often uses high-dynamic-range imaging for greater realism, though this is not universal. According to Fxguide, "Almost all modern rendering software offers some type of image-based lighting, though the exact terminology used in the system may vary." Motion picture production makes use of image-based lighting, and it can be seen in movies like Monsters University, The Great Gatsby, and Iron Man 2. One reference capture technique, sometimes referred to as "wickmania" by camera technicians and VFX supervisors, involves shooting footage of two small spheres (one matte, one of a light-reflective material) on a physical set. This is used when the IBL will be later applied to an animated object or character that interacts with live objects or characters under the same lighting conditions. Image-based lighting is also used in some video games as video game consoles and personal computers start to have the computational resources to render scenes in real time using this technique. This technique is used in: * Forza Motorsport 4 * Rise of the Tomb Raider * Into the Stars * SuperTuxKart Image-based lighting is also a built-in feature of the Crytek CryEngine video game engine. (Wikipedia).

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Mirrorless Cameras

Mirrorless Cameras are pocket-sized alternatives to DSLRs that feature interchangeable lenses. These cameras use a digital screen or an electronic viewfinder to display what the camera sees. One of the best advantages is that you will be able to see how settings such as shutter speed, ape

From playlist Digital Photography

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Spectrum of Hg Lamp / amazing science experiment

Identify the spectral lines of Hg lamp Enjoy the amazing colors! Music: https://www.bensound.com/

From playlist Optics

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HIGH POWERED LED 2 WATT x 3 in series 6 WATTS Efficient Green Lighting

http://www.greenpowerscience.com/HOTLINKS.php This High Powered LED Light Emitting Diode Series produces the same pure white light as a 90 Watt Halogen Bulb with a total of less than 6 watt power consumption. This lighting requires an AC to DC converter and LED DRIVER for the LED LIGHTS

From playlist LED Light Emitting Diode

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Schlieren Optics

Demonstration of an optical technique that allows us to see small changes in the index of refraction in air. A point source of light is reflected from a concave mirror and focused onto the edge of a razor blade, which is mounted in front of the camera. Light refracted near the mirror and i

From playlist Schlieren Optics

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Carl Zeiss S-planar lens pt.3: light collimation

Before the Carl Zeiss s-planar photo-lithography lens can be used as intended, it is necessary to find a way to get as much light as possible into the optical tube. Another aspect is the uniformity of the projection field. A simple diffuser plate does not work since it is very inefficient:

From playlist Carl Zeiss S-planar Photolithography Lens

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Shot Types Part 1

Sometimes a closeup works best, but other times you may want a wider-angle shot. You can experiment by moving closer and farther away from your subject, or by using your camera's zoom. We hope you enjoy! To learn more, check out our written lesson here: https://edu.gcfglobal.org/en/digita

From playlist Digital Photography

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LED mounted in a contact lens for possible virtual / augmented reality displays

Every so often, internet news aggregator sites run a story about a research group that put an LED into a contact lens, then inserted it into a rabbit's eye. I figured that I would try the same thing, but put the lens into my own eye. I accomplished this by laminating a coil of wire and an

From playlist Electronics

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High Energy Dye Laser Optical Design

An overview of the optics for the high energy pulsed dye laser.

From playlist Lasers

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Lenses(HD)

Watch more videos on http://www.brightstorm.com/science/physics SUBSCRIBE FOR All OUR VIDEOS! https://www.youtube.com/subscription_center?add_user=brightstorm2 VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES! http://www.brightstorm.com/ LET'S CONNECT! Facebook ► htt

From playlist Physics

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Stanford Seminar - Multi-Sensory Neural Objects: Modeling, Inference, and Applications in Robotics

October 14, 2022 Jiajun Wu of Stanford University In the past two years, neural representations for objects and scenes have demonstrated impressive performance on graphics and vision tasks, particularly on novel view synthesis, and have gradually gained attention from the robotics communi

From playlist Stanford AA289 - Robotics and Autonomous Systems Seminar

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Stanford Seminar - Artistic Vision: Providing Contextual Guidance for Capture-Time Decisions

Jane E Stanford University November 6, 2020 With the increased popularity of cameras, more and more people are interested in learning photography. However, few have access to in-person classes to help improve upon their artistic skills. Inspired by critique sessions common in these art pr

From playlist Stanford Seminars

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Phys 550 Lecture 1: Biomolecular Physics - Introduction to Biomolecular Physics

See the updated video (synced with high resolution slides) at http://nanohub.org/resources/19295 See the rest of the course, including course notes and exercises at http://nanohub.org/resources/19299 This is the first lecture in a course on biomolecular physics taught by Professors Schul

From playlist Illinois: Introduction to Biomolecular Physics - CosmoLearning.com Physics

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A Strange Grid Pattern in the Gobi Desert | What On Earth? (Full Episode)

Images of earth from space reveal an intimate portrait of human activity. Cities glow bright while the wilderness remains dark. Why then is the Australian outback, lit up like a series of vast cities? Also, what's behind a strange grid pattern in the middle of the Gobi Desert. Stream Ful

From playlist Free Science Channel Episodes

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Changing Perceptions in Optics: What Can a Thin Engineered Surface Do? - Mahsa Kamali - 4/25/18

Everhart Lecture by Mahsa Kamali, Graduate Student, Electrical Engineering, Caltech. Recorded in the Broad Center for the Biological Sciences, April 25, 2018. Over the last two centuries, our understanding of light has undergone multiple paradigm changes from confirmation of the wave natu

From playlist Everhart Lecture Series

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Imaging the Unseen: Taking the First Picture of a Black Hole - Katie Bouman - 6/7/2019

Changing Directions & Changing the World: Celebrating the Carver Mead New Adventures Fund. June 7, 2019 in Beckman Institute Auditorium at Caltech. The symposium features technical talks from Carver Mead New Adventures Fund recipients, alumni, and Carver Mead himself! Since 2014, this Fun

From playlist Carver Mead New Adventures Fund Symposium

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Beyond the Pale Blue Dot: Seeing Distant Planets (Live Public Talk)

On the 30th anniversary of the "Pale Blue Dot" image taken by NASA’s Voyager mission, we’ll look at the impact of that image and other distant views of Earth. We'll then turn to the quest to photograph another Earth — an exoplanet orbiting another star — as its own pale blue dot. Join us f

From playlist Von Karman Public Talks

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Graphics & Shaders in Wolfram Language: Live with the R&D team

In this stream, we review new features in Graphics & Shaders with Wolfram R&D. Follow us on our official social media channels. Twitter: https://twitter.com/WolframResearch/ Facebook: https://www.facebook.com/wolframresearch/ Instagram: https://www.instagram.com/wolframresearch/ L

From playlist Live with the R&D Team

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SVG Filters Crash Course

When it comes to graphical effects on the Web, CSS has already come a long way in the last few years, with the introduction of CSS filters and blend modes a few years back. However, when compared to effects available in graphics editors such as Photoshop and the likes, CSS is still behind,

From playlist Talks

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Exposure

When you take a photo, the sensor is exposed to light for a fraction of a second, or sometimes longer. The total amount of light that is captured is called the exposure. We hope you enjoy! To learn more, check out our written lesson here: https://edu.gcfglobal.org/en/digitalphotography/

From playlist Digital Photography

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Ambient occlusion