A specular highlight is the bright spot of light that appears on shiny objects when illuminated (for example, see image at right). Specular highlights are important in 3D computer graphics, as they provide a strong visual cue for the shape of an object and its location with respect to light sources in the scene.
Microfacets
The term specular means that light is perfectly reflected in a mirror-like way from the light source to the viewer. Specular reflection is visible only where the surface normal is oriented precisely halfway between the direction of incoming light and the direction of the viewer; this is called the half-angle direction because it bisects (divides into halves) the angle between the incoming light and the viewer. Thus, a specularly reflecting surface would show a specular highlight as the perfectly sharp reflected image of a light source. However, many shiny objects show blurred specular highlights.
This can be explained by the existence of microfacets. We assume that surfaces that are not perfectly smooth are composed of many very tiny facets, each of which is a perfect specular reflector. These microfacets have normals that are distributed about the normal of the approximating smooth surface. The degree to which microfacet normals differ from the smooth surface normal is determined by the roughness of the surface. At points on the object where the smooth normal is close to the half-angle direction, many of the microfacets point in the half-angle direction and so the specular highlight is bright. As one moves away from the center of the highlight, the smooth normal and the half-angle direction get farther apart; the number of microfacets oriented in the half-angle direction falls, and so the intensity of the highlight falls off to zero.
Once intended to be a Disney+ series, sequel to beloved 2016 movie offers wowing visuals, so-so story ... UPDATED ... “Moana 2” boasts brilliant colors, dazzling specular highlights and stunningly executed sequences ... .
You wouldn’t know from its looks that “Moana 2” originally was developed as a series for Disney+ ... “Moana 2” boasts brilliant colors, dazzling specular highlights and stunningly executed sequences ... (Disney/TNS) ... (Hint ... Derrick Jr ... You’re welcome. ‘Moana 2’.
When measuring nit output for these settings, our reviewer measured peak brightness at 1,300nits in SDR, with around 3,500 for specular highlights in HDR... HDR highlights Excellent motion handling.
Specular reflectivity has been ... Specific Map Updates The introduction sequence has been adjusted to closely match the original sequence, including fixing specular highlights on the G-Man’s eyes.
Each week, we'll hand pick some of the most commonly asked questions and answer them as concisely and helpfully as we know how ... In reality, the TV is unlikely to put out anything that bright, even in a small specular highlight during real content ... ....
We see great TV deals all the time, and one brand that tends to collect a lot of fanfare is Hisense ... And thanks to those quantum dots, the QD5N brings a wide color gamut to the table and terrific specular highlights when watching HDR content. Related.
Only the occasional specular highlight really needs to punch above that level ... You don’t need to push the spectacular highlights that hard to get some stunning visuals.
When you buy through our links, Business Insider may earn an affiliate commission ...Steven Cohen/Ryan Waniata/Business Insider ... Best Roku TV ... Best Tizen model ... Specular highlights, like explosions, pop from the screen with realistic intensity ... VizioTizen.
This story is part of JacobRoach's ReSpec series, covering the world of PC gaming and hardware ... Wukong ... Wukong ... The grass on the other side of the pond has better definition because of the specular highlights that show up clearly, framing each blade.
High-dynamic-range (HDR) highlights shine with ... The G4 did offer a bit more pop in specular highlights, and the colors looked a tad more realistic, but it was far from a night-and-day difference.
On today’s You Asked ... Debunking TV Calibration Myths & Are TVs Too Bright? ... 49 ... When we talk about brightness on a display, there’s average picture level, and then there’s HDR highlight brightness ... We call them specular highlights.
... for HDR highlights ... Specular highlights do appear brighter than the smallest test patterns windows, which indicates that the TV does deliver on its promise to hit about 5,000nits for HDR highlights.
Nvidia GeForceRTX 4090. MSRP $1,600.00. ScoreDetails... Pros ... Cons ... Contents ... Subscribe Check your inbox! ... 1 of 6 ... The shadows are much sharper, the reflections have specular highlights, and the scene has a much softer gradient between light and dark areas.
Samsung ... Whether you’re gaming locally or often find yourself involved in 100+ player online matches, the Odyssey is built to handle all the fast action, explosions, and specular highlights you can throw at it ... That’s $800 off its normal price ....
This means it's not able to control its brightness precisely enough to produce deep black levels or intense specular highlights (like explosions) ... specular highlight, and color performance to the test.
Sun Sentinel
27 Nov 2024
Sun Sentinel
27 Nov 2024