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Intel's Lisa Pearce today announced on Twitter, that the company has listened to user feedback from Reddit and will add nearest neighbor integer scaling to their future graphics chips. Integer scaling is the holy grail for gamers using console emulators, because it will give them the ability to simply double/triple or quadruple existing pixels, without any loss in sharpness that is inherent to traditional upscaling algorithms like bilinear or bicubic. This approach also avoids ringing artifacts that come with other, more advanced, scaling methods.
In her Twitter video, Lisa explained that this feature will only be available on upcoming Gen 11 graphics and beyond - previous GPUs lack the hardware required for implementing integer scaling. In terms of timeline, she mentioned that this will be part of the driver "around end of August", which also puts some constraints of the launch date of Gen 11, which seems to be rather sooner than later, based on that statement.
It is unclear at this time, whether the scaling method is truly "integer" or simply "nearest neighbor". While "integer scaling" is nearest neighbor at its core, i.e. it picks the closest pixel color and does no interpolation, the difference is that "integer scaling" uses only integer scale factors. For example, Zelda Breath of the Wild runs at 900p natively, which would require a 2.4x scaling factor for a 4K display. Integer scaling would use a scale factor of x2, resulting in a 1800p image, with black borders on top - this is what the gamers want. The nearest neighbor image would not have the black bars, but every second pixel would be tripled instead of doubled, to achieve the 2.4x scaling factor, but resulting in a sub-optimal presentation.
Update Jul 13: Intel has posted an extensive FAQ on their website, which outlines the details of their Integer Scaling implementation, and we can confirm that it is done correctly - the screenshots clearly show black borders all around the upscaled image, which is exactly what you would expect for scaling with integer scale factors. Intel does provide two modes, called "NN" (Nearest Neighbor) and "IS" (Integer Scaling).
View at TechPowerUp Main Site
In her Twitter video, Lisa explained that this feature will only be available on upcoming Gen 11 graphics and beyond - previous GPUs lack the hardware required for implementing integer scaling. In terms of timeline, she mentioned that this will be part of the driver "around end of August", which also puts some constraints of the launch date of Gen 11, which seems to be rather sooner than later, based on that statement.
It is unclear at this time, whether the scaling method is truly "integer" or simply "nearest neighbor". While "integer scaling" is nearest neighbor at its core, i.e. it picks the closest pixel color and does no interpolation, the difference is that "integer scaling" uses only integer scale factors. For example, Zelda Breath of the Wild runs at 900p natively, which would require a 2.4x scaling factor for a 4K display. Integer scaling would use a scale factor of x2, resulting in a 1800p image, with black borders on top - this is what the gamers want. The nearest neighbor image would not have the black bars, but every second pixel would be tripled instead of doubled, to achieve the 2.4x scaling factor, but resulting in a sub-optimal presentation.
Update Jul 13: Intel has posted an extensive FAQ on their website, which outlines the details of their Integer Scaling implementation, and we can confirm that it is done correctly - the screenshots clearly show black borders all around the upscaled image, which is exactly what you would expect for scaling with integer scale factors. Intel does provide two modes, called "NN" (Nearest Neighbor) and "IS" (Integer Scaling).
View at TechPowerUp Main Site
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