The blue end of the heatmap color scale indicates darkness. Then, a peek at the heatmap, along with its color legend, clarifies how much brightness data is in each pixel. Advertisementįurther Reading The Winter Olympics in 4K and HDR: A pain in many ways, but gosh, those sparklesThe first cool thing about Boris' heatmaps is that they offer a clear, visual answer to "what does HDR do?" A flattened, "SDR" image appears next to each corresponding, crazy-looking heatmap image, so you can make out shapes, reflections, time of day, and other visual basics. That effort, combined with a custom gradient map he applied to images, allowed him to render the above heatmap images. From there, he followed some guidance from an Unreal Engine 4 post about HDR resources and attempted to "filter an un-toned HDR image to accurately visualize the brightness of an HDR game (using the "HDR-10" protocol). With this mix of basic images and metadata, Boris was able to extract "nit output," or the exact brightness setting, for every single pixel in an image. Unlike the PlayStation 4 platform, Xbox One supports an export of its HDR metadata in an image format called JXR. So he started importing saved screenshots taken using the Xbox One X's internal screenshot tool. The anonymous forum member, whose day job revolves around "eye and lens systems" for a tech-research firm (along with a serious photography habit), had been confused about why certain video games' HDR modes looked different from others. "I was personally interested in why my experience with HDR products has been so varied," Boris tells Ars via a forum direct message. Middle-earth: Shadow of War is also lauded for solid HDR-10 performance.
And as he explains to Ars Technica, these images came about simply out of curiosity.
As one enterprising gamer found out, the answer is tucked away into every single Xbox One console.Ī thread on the renowned gaming forum ResetERA appeared on Thursday with a huge swath of heatmap images from modern HDR-compatible games, all posted by a user with the handle EvilBoris.
In other words, they're brighter and more colorful-and most computer and phone screens can't convey that.īut as it turns out, there's a way, albeit a geeky one, to visually break down both the impact and issues of current-day HDR.
DEUS EX BRIGHTNESS SLIDER FULL
HDR benefits from a full pipeline of newfangled tech to increase color gamut and luminance ranges on screens. Pretty much any online explainer about high dynamic range TVs (HDR) is hobbled by a not-insignificant asterisk: if you're reading it online, your screen almost certainly can't convey the visual difference.
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