日本語: レッスン 5: Let there be (ダイナミックライティング, 8k, Octane でレンダリング)

Associated study here: Study 5: Simple Lighting

This will be the most technical lecture of the series!

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Process vs. Observation

By now maybe you’ve noticed something peculiar about the niji lessons. It almost feels as if they were teaching you how to draw backwards. Instead of learning how to draw something, why are we learning how to simplify finished pieces?

Learning via process:

Normally, “how to draw” guides online show you a process. A step-by-step guide to how to draw one final thing.

Methods like this require you to trust the process through which the solution is derived, because you can’t see the result while you are drawing. I am an inherently suspicious person, so we don’t teach a lot of specific processes here.

Learning via observation:

In contrast, in this classroom, I show you many finalized things, and then teach you how to derive more simplified things from it.

The most common failure case of a process-driven approach is the failure to generalize: since you only see one final result, it is hard to derive other, similar results. If you make a mistake in your understanding of the process, you won’t be able to catch the failure case, since you haven’t seen enough final results.

Every person has a different neural network architecture: it’s overwhelmingly more important to learn how to hone your own powers of observation, so you can derive processes by looking at the finals.