Driver-forced AA of any kind tends to upset Dolphin, so there's a good chance that things will break if you try and use it.
CMAA is a morphological technique, so it works by finding patterns in the final image that have certain features and then transplanting detail from a look-up table into the image. It's completely different to MSAA and SSAA, which render the original image with more detail in the first place. Dolphin has FXAA, yet another type of post-process AA, available as a post-processing option if you want some AA with a small performance hit, but for whatever reason SMAA (which is similar to CMAA except for being better and often faster) isn't available in the same dropdown.
CMAA is a morphological technique, so it works by finding patterns in the final image that have certain features and then transplanting detail from a look-up table into the image. It's completely different to MSAA and SSAA, which render the original image with more detail in the first place. Dolphin has FXAA, yet another type of post-process AA, available as a post-processing option if you want some AA with a small performance hit, but for whatever reason SMAA (which is similar to CMAA except for being better and often faster) isn't available in the same dropdown.
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56