60 votes
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How to make a "reflective tape" material in cycles?

Such a material works by reflecting the incoming light back towards the direction it originated - since your car headlights are very close to your own line of sight, you see a strong reflection of ...
Rich Sedman's user avatar
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49 votes
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Accidentally hit "toggle full screen", How do I exit?

To toggle out of full screen area (what I think you did) press AltF10, or move your mouse to the top right corner and click the button that appears. Here I start in full screen area, notice the button ...
David's user avatar
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49 votes
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How to make a holographic reticle shader in cycles

Pure Shader Solution! Hey look, high-school maths does have a purpose...... From what I could understand with a little research, holographic/reticle sights display a holograph that appears (when ...
GiantCowFilms's user avatar
49 votes
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Is there a way to use logic operators in Blender Shader nodes?

I've spent the past week or so working on basic logic gate implementations in Blender Shader editor. I'm sharing these with the community so anyone who would like to use similar nodes can easily find ...
asoftbird's user avatar
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45 votes
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How is the vector transform node used?

Overview To effectively make use of the Vector Transform node, you first need to appreciate the differences between the various coordinate spaces - World Space, Object Space, and Camera Space. You can ...
Rich Sedman's user avatar
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43 votes
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What is Dot Product?

Let's start with some definitions: Vector: A list of values that are all contained under the same "roof" so to speak. For instance, the location of an object in 3D space is a vector of 3 values (the $...
TLousky's user avatar
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39 votes
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how are the math node operations in cycles calculated?

Here is a list of the mathematical equivalents of each operation. Add: Out = Value1 + Value2. Subtract: Out = Value1 - Value2. ...
PGmath's user avatar
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39 votes
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How to store particle locations in a list?

There is no intuitive way to do this in Animation Nodes. I proposed a system to the developer that should hopefully allow us to do this intuitively. But he is still studying it. In the meantime, I ...
Omar Emara's user avatar
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37 votes
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How can I convert a node made material into an image texture?

The method of creating textures is called Texture Baking. Different kinds of textures (normal map, specular map, albedo map, etc.) take different sources, from which you 'bake' the texture - it can be ...
Jaroslav Jerryno Novotny's user avatar
36 votes

What is Dot Product?

The dot product of two vectors measures two things: how much are they "in the same direction" ? how large are they? Skipping the precise definition, we're usually interested in these properties: ...
tarulen's user avatar
  • 469
32 votes

What is Dot Product?

The dot product is a way of multiplying two vectors that produces a scalar (i.e. real number) value. Geometric Definition The dot product of vectors $\vec{V}$ and $\vec{U}$ can be thought of as ...
PGmath's user avatar
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31 votes
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Blurring/Feathering a Procedural Pointiness Mask

Creating Procedural Weathering Effects in Blender Okay so I ended up developing a solution to this question a couple of months back, but I see it's gained a lot of interest recently so I thought I'd ...
Hexbob6's user avatar
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29 votes
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Voronoi Cracks Fac?

Let's use a Laplacian kernel filter for this: The Laplacian is a 2-D isotropic measure of the 2nd spatial derivative of an image. The Laplacian of an image highlights regions of rapid intensity ...
Jaroslav Jerryno Novotny's user avatar
26 votes
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Cryptomatte - What does Crypto00, Crypto01, Crypto02 mean?

In order to explain to sockets and their numbering I'll have to explain how Cryptomatte and some aspects of path tracing work. The Idea Cryptomatte generates ID mattes which try to preserve for each ...
Robert Gützkow's user avatar
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25 votes

How do I create repeating patterns with cycles' procedural textures

Jerryno answer is great but there is another way to achieve that with some simple trigonometry. 1) Use Cosine operation on coordinates multiplied by Pi (just type "pi" in node value slider). This ...
Bartek Moniewski's user avatar
25 votes
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Randomly populating procedural shape (or Image Texture) in Cycles

The solution I am proposing is very similar to that proposed by Rich Sedman. But it is more automated and I believe gives more natural results. The final result is: The main idea is to compute ...
Omar Emara's user avatar
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25 votes
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How do I achieve this "hexagonal armor" animation effect in Blender?

Enable addon Extra Objects Add Object Shift+A > Mesh > Extras > Honeycomb in desired amount of cels setuped in properties panel (left-bottom corner of 3Dview) with max Edge Width that fills ...
vklidu's user avatar
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25 votes
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How can I emulate old photo cracks and creases procedurally?

There is several types of cracks and scratches in your reference image ... some are easier to handle than others. The simplest ones "empty maps" ... the key here is probably Musgrave texture ...
vklidu's user avatar
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24 votes
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How can I make a procedural polished granite material?

Creating a Procedural Polished Granite Material Guessing you're probably no longer in need of this effect, but thought I'd write a (hopefully) short tutorial in case anyone is interested in creating ...
Hexbob6's user avatar
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24 votes
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How to remove a node from a frame?

This is a simple one keyboard shortcut thing to do. With the "trapped" node, or nodes selected press AltP. As the manual says: To remove them select the node(s) and use the Alt-P shortcut. This ...
David's user avatar
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24 votes
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Using an RGB map to assign various shaders in a material

Final: Example with Glossy, Glass and Emission shader. Overview and Node setup: You can do this by Separate RGB node which, well, is separating RGB channels. Then use them as masks for your ...
cgslav's user avatar
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23 votes

Add Nodes to Material with Python

The answer provided is only partially helpful. Or it is outdated in 2.7 Yes you have to add the nodes (use_nodes = True). However the default material is the ...
fritzvd's user avatar
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23 votes
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Create procedural spiral pattern

Final result One method is to create a volumetric cylinder and distort it by rotating it around the origin by an amount that varies based on the distance from the origin. First, create a volumetric ...
Rich Sedman's user avatar
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23 votes
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How to generate Reaction Diffusion animation?

Since this site is meant to be as knowledge base … here is one option for Compositor. This technique mimics one used by image editor apps: Copy - Blur - Subtract - Contrast - Merge - Save … repeat ...
vklidu's user avatar
  • 36k
22 votes
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Low Poly Water Effect

It looks to me like some kind of mix between glossy and transparent shaders. This setup is rather arbitrary, it's up to you to come up with a combo you like. The trick is that there seems to be ...
gandalf3's user avatar
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22 votes
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How to make Abstract EM Waves material in Cycles?

This answer https://blender.stackexchange.com/a/64978/29586 created a wispy material in 2 dimensions only. The same principles can be extended to create a similar volumetric material. Starting with ...
Rich Sedman's user avatar
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22 votes

How to make a holographic reticle shader in cycles

Final Objects You will need two objects. Lens and sight. Place them as you will do it for gun without holographic sight. Materials For lens use just Glass Shader. For sight use mix between sight ...
cgslav's user avatar
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22 votes
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How to Create a Vinyl Plastic Toy Shader?

Creating a Plastic Material in Blender Cycles So I've been through the linked C4D tutorial and have adapted (where possible) the Octane setup that EJ uses to create the materials for the Apple ...
Hexbob6's user avatar
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