I always wanted to gain some deeper knowledge in shaders, both in general and in Unreal Engine. Sadly, this book does not provide it, for multiple reasons.
The core issue is, although it does describe how to set up specific materials, it does not explain all the nodes that were used to achieve it and the reason they were used; so although you can set up some cool effects that are described here, it does not teach you how to actually do your own materials.
I don't even understand who is the target of this book. I generally read books on buses, airplane, etc, whenever I can't have my laptop. However, more than half of this book only covers how to set up the project, which material sub-graph should be copied to which part and which links should be connected. But like sometimes in 70+ steps! "42. Create a new Text Coord, copy the D subgraph after it, and connect them". And 70 of it. Now, if I was at my computer, reading a list of these would be the last thing I'd do; a YouTube tutorial is much more interactive, has a comment section for discussion, and much easier to follow.
This way, this book is not readable if you're not at your computer, but why would you read it if you're at your computer when there are much better alternative interactive resources available.
Let's say you ignore the parts where there are 5 pages of raw text, which describe how to connect the graphs and create the nodes, so that you can just look at the final graph and an explanation of why and how things happen. Sadly, you can't do that either.
First of all, the full graph is not always included, instead, you get something like: "For the full graph, look in the material asset". Once again it's proven that you can't read it without a computer at hand.
Secondly, although each recipe is broken into different sections, those sections are totally useless. Some reasoning and explanation are in the section of building the material (so you have to read the material constructing even if you're on an airplane and it's totally irrelevant), and the others are semi-randomly spread through the last 2 parts of each recipe which do not have any obvious separation between each other.
I'm pretty sure the guys who wrote it are professionals, and there are surely a few things you can learn from it. But it's extremely high-level, not well organized at all, and just in general, not an easy nor a good read.
That's just my opinion tho, you might still like it.
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