In audio, aliasing is the result of a lower resolution sampling, which translates to poor sound quality and static. This occurs when audio is sampled at a lower resolution than the original recording. When the sinusoidal audio wave is converted to a digital wave using a lower resolution sample...
Aliasing is basically a form of undersampling. The undersampled waveform is constructed to look like a slower frequency waveform or a flat line when the sample rate is the same as the frequency of your signal. You can detect aliasing by running a horizontal test on your oscilloscope. If the...
Both these phenomena result from sampling the data at a frequency below its NYQUIST FREQUENCY: that is, displaying a line on a screen of too Iowa resolution or sampling the sound at too Iowa frequency. In fact aliasing is a potential source of distortion when sampling any form of data, anot...
So, what is camera sampling? Basically, a number of rays are shot from the camera through each required pixel of the rendered screen window into the scene. These are called 'primary rays', but sometimes they are referred to as 'eye' or 'camera rays' (Camera (AA) (anti-aliasing)) as...
The impact that anti-aliasing has on performance depends largely on the type being used, as well as the resolution of your monitor or display settings. MSAA tends to have a bigger impact on performance than TAA or MLAA, due to its more intensive sampling process. ...
If every frame per second is precious to you, then you will have to settle for a post-processing AA, which may slightly blur the image, but at least it will eliminate the unpleasant staircase effect. Super-Sampling Anti-Aliasing First off, we have theSSAA(Super-Sampling Anti-Aliasing) or...
ranging from basic to more advanced techniques. Basic anti-aliasing methods, such as simple averaging, can provide some improvement in smoothing jagged edges. More advanced techniques, like multisampling, super sampling, and post-processing filters, offer higher-quality anti-aliasing with improved accura...
When the image details or patterns exceed this half-of-sampling-rate threshold, we witness a phenomenon called under-sampling. This is where image aliasing gets its roots. Under-sampling results in the lack of necessary data to replicate high-frequency components of the image, thus leading to ...
It is used for forward rendering. 4. SSAA (SuperSampling Anti-Aliasing) Source Source This is the most demanding AA algorithm, but the one which offers the highest quality. It creates a quality image by downsampling from a large image to a small one. This is the only decent way to ensu...
The process of decreasing the sampling frequency is often done by reducing the sampling rate by some integer factor, keeping only one of every nth sample. This is done by using a lowpass filter, otherwise known as an anti-aliasing filter, to reduce the high frequency/noise components of a ...