These patches are outdated! I've created some new blur patches that are more flexible, and can use higher precision. You can also dial in the exact number of samples to use so balancing performance and quality is much simpler. Please check out the Blur Kit!
These deprecations are unavoidable in fast moving tech, but anyway I am happy to offer a $20 coupon code: BLURKITPOSITLABS
Various advanced blur patches for Spark AR. Comes with an example project that shows a few ways you can control the inputs, and a neat trick for radial bloom. Each patch name has a number at the end, signifying the number of texture samples. Higher numbers will be higher quality, while lower numbers are more performant.
You will get 14 patches and an example project.
Example project and 14 ARP patches