Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun computer graphics A form of
supersampling in which some components of the finalimage are not fully supersampled.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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Because triangle rasterization and depth testing are performed at the higher resolution, multisampling is every bit as good as supersampling at combating triangle edge and geometry aliasing.
Site Home Shawn Hargreaves - MSFT 2011
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This often surprises people when they see aliasing on cutout sprites and turn on multisampling in an attempt to fix it, but nothing changes.
Site Home Shawn Hargreaves - MSFT 2011
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We would normally avoid aliasing along the edges of triangle geometry by multisampling, but remember this only runs the pixel shader one per final output pixel.
Site Home Shawn Hargreaves - MSFT 2011
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Adding work to things that were not the perf bottleneck can sometimes even be entirely free, so multisampling often turns out to improve visual quality for low cost.
Site Home Shawn Hargreaves - MSFT 2011
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Since each group of multisamples gets a single alpha value from this single shader invocation, each multisample inevitably also has the same alpha test result, so multisampling is useless when it comes to smoothing our alpha cutout silhouette.
Site Home Shawn Hargreaves - MSFT 2011
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If we turn off supersampling and multisampling, then change our SpriteBatch.
Site Home Shawn Hargreaves - MSFT 2011
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Unlike multisampling and supersampling, texture filtering does not smooth the border of the rotated images, but it does a nice job to reduce aliasing inside our full size rotated and half size non rotated images.
Site Home Shawn Hargreaves - MSFT 2011
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Imagine how horrible it would look if we animated this sprite spinning, as it would flicker back and forth between different colors! multisampling smooths triangle edges but does not affect their interior?
Site Home Shawn Hargreaves - MSFT 2011
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We can confirm this by turning on 4x multisampling, and noting how the only difference is smoother borders on the rotated images: supersampling, on the other hand, texture aliasing is indeed reduced:
Site Home Shawn Hargreaves - MSFT 2011
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This is an important and easily missed point: multisampling only knows about the edges of polygonal geometry.
Site Home Shawn Hargreaves - MSFT 2011
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