NodeSet Pro ported to Blender 2.80

NodeSet Pro has now been ported to Blender 2.80 and is available from BlenderMarket.
Porting this add-on has been fairly easy but be aware that Blender 2.80 is still in beta so you might encounter difficulties!

Random Vertex Colors, a simple addon

In a previous article I presented an addon to generate a floor board with individual planks. Each individual plank was adorned with a random vertex color that can be used to create materials with random color variations for each face.

When working with the Ivy Generator recently I wanted this same feature and indeed my own space tree addon could benefit from this as well, because just like IvyGen it generates a single mesh object with a face. for each leaf. So I decided to separate this functionality from the floor board generator so it can be used in different situations.

Once the addon is installed it can be used on any mesh object when in vertex paint mode as shown below:

It will replace the vertex colors of the active vertex color layer with colors that are random but equal for each face. In Cycles vertex colors can be accessed with an attribute node, an example node setup can be found in the article on the floor board generator referred to at the start of this article.

Code availability

All functionality of this add-on plus a lot more is now available as a convenient all-in-one add-on on BlenderMarket. It comes with an extensive PDF manual and your purchase will encourage me to develop new Blender add-ons.

The simple code shown in this article is available for download at GitHub and is uploaded to the upload section of Blender extensions tracker so if you find bugs you may post them there as well.

[2016 Feb 7] The version currently in GitHub is much faster for large meshes because it uses Numpy. Check this article to see why.

Book review: Blender 2.6 Cycles: Materials and textures cookbook

Last week I had the opportunity to read the Cycles materials and textures cookbook and it proved to be a worthwhile read.

The author, Enrico Valenza, is an experienced and professional Blender user so a book by him is certainly worth checking out. The book presents some thirty shaders in a cookbook style and offers many insights in the Cycles rendering system not limited to specific materials. Although a cookbook implies that you can use the recipes as they are presented, the techniques that are offered in the book will get you a lot further than that and will help you develop skills necessary to develop your own materials because of the very detailed way their implementation is described.

pros

thorough,

each material is described in step-by-step detail and pretty much every avaible Cycles node is featured somewhere and both node groups and frames are covered as well,

comprehensive,

both materials based on textures and materials based on procedural noise are covered and the all important concept of layering increasingly fine detail to get realistic textures is featured quite some times,

interesting

some materials feature mainly as a means to illustrate a concept but many materials are quite good and some are even excellent, my favorites are the sponge texture, the leather texture and the ancient bronze texture.

cons

• the introductory chapter on how to set up Cycles and where to find stuff isn't all that clear. This isn't necessarily the author's fault because sometimes the Blender interface can be overwhelming. Maybe this is one of those situations where a video tutorial is useful,
• the resolution of the illustrations is way to low. If you try to zoom in the lettering of the node labels isn't readable. And yes, high resolution versions of those illustrations are available for download but that detracts from the reading experience a lot.

Conclusion

Nice and thorough book to get you started on creating materials for Cycles, the e-book versions are certainly worth your money in my opinion (personally i think that twice the price for a print version is over the top but of course there will always be people who prefer the genuine touch of paper :-)