Blender 3D: tutorials, articles, tips, notes
Erindale Woodford, the creator of very complex and advanced shaders, has released all of his shaders from the Nodevember 2020 event.
A pack of 30 shaders can be downloaded from Gumroad.
All shaders are available for free for personal and commercial use.
If the OSL shader body contains an import of the “node_texture.h” module, this shader can’t be executed in the latest versions of Blender.
When trying to execute such a shader, Blender throws an error:
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error: could not find include file: node_texture.h |
Continue reading “Error when using an OSL shader with node_texture.h”
“Nodevember 2020” – the next challenge is coming from November 1 to 30 for amateurs and fans of procedural (node-) modeling and creation. The rules of the challenge are very simple – each participant creates one procedural material/object on a given topic each day with Blender exclusively using nodes. You can create whatever you want – models, meshes, materials, shaders, and even music, as long as they are procedural. Next, publish your created object on social networks with the #nodevember hashtag.
Webpage: nodevember.io
In Blender 2.83 in the EEVEE render engine the “Additive” and “Multiply” modes that were present in Blender 2.80 were removed from the possible transparency blending modes.
But if you need to use these transparency blending modes in Blender 2.83, you can get them with nodes.
Continue reading “Blender EEVEE transparency blend modes – Multiply and Additive”
To make glass objects render faster and cleaner in Cycles render engine, we can adjust glass material processing by the number of beam bounces.
Continue reading “Glass shader tuning for Cycles render engine”
In Blender 2.82 we can get a random index of UV islands in the Shader Editor through the “Geometry” node
Works only for the “Cycles’ render engine.
Some times we need to make a render of the scene with the single material, for example, for clay or wireframe renders. Blender has the global materials override option for the Cycles render engine in the “View Layer Properties” – “Override” but not for the EEVEE render engine.
Quick materials override for the EEVEE rendering engine can be made with a small script, as shown in the following video:
Script and video by Vitaly Sokol.
Continue reading “Global materials override for the Blender EEVEE render engine”
The basic scheme for making a PBR (physically based) node shader in Blender looks like as follows:
Note that all the “ImageTexture” nodes, except for the “Base Color” node, use the “NonColor” colorspace.
Creating an organic shader to emulate an electron microscope look for Blender EEVEE render engine tutorials.
Procedural shader with Latin font made with Blender nodes.
By Sam (Worldsday) Brubaker
Available in the BIS library.
Simon Thommes published his stream about making a circuit board with shader nodes in the nodevember challenge.
Hans Chiu shared a stream about making a procedural animated zipper material.
Nodevember is a monthly challenge you invited to make procedural objects for Blender every day. It can be a material, a shader, an object, anything, if only it would be procedural. “If you can call it nodes, you can call it Nodevember!”
Webpage: nodevember.io
A set of fully procedural stylized eye shaders opened in the BIS library.
The official Blender documentation provides a method to get the “Specular” value for the PBR-material reflections if the “IOR” value is known. To get the “Specular” value from the “IOR” value, we can use the following equation:
It is not difficult to create it with nodes:
Except for the “Gradient Texture” node, we can obtain a gradient factor by using some simple equations. Look for the mathematics with a spherical gradient sample.
Can be created based on a downward-facing cone equation.
Pack with nine procedural stylized eyeballs materials.
Materials are ready to render with Blender “Cycles” and “Eevee” render engines right away.
The simplest way to pixelate texture, procedural or not – get the color from the single pixel and fill the region with required width and height (resolution) with this color.
Here is the gradient texture with red – green – blue colors:
To pixelate it with the first step of resolution we can make some vectors manipulations.
