In order to give structure to the steps that we needed to take in this chapter, we have naturally had to perform our quality control tweaks in a specific order, taking renders of each step along the way so as to evaluate its effect before moving on. It does need to be noted though that the order in which we have taken these steps here is by no means a required nor sometimes efficient way in which to proceed.

For instance, rather than waiting until the end of the quality control process to balance out the sampling load, we may find it beneficial to add the Sample Rate VFB channel right from the start, leaving the less noise intensive GI clean up until later in the process. This would mean that subsequent test renders have already been optimized to deal with noise-related issues. It would also mean that we could combine tweaks to image sampling and materials, which would require us to take fewer test renders than we have here.

Ultimately, the type...