Questions tagged [nodes]

Nodes are used in the Node Editor for compositing, post-processing, creating materials and textures. Use this tag for anything node related.

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Is there a way to get node dimensions without displaying it?

The aim of the question is to calculate a node tree layout on a generated node tree. Nodes have 'height', 'width' and 'dimensions'. It seems that 'dimensions' corresponds to some default size and ...
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Creating a procedural flood fill node in blender

I would like to know if there's a way to create a procedural flood fill node to use maybe with voronoi texture or other procedural nodes.
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1answer
21 views

Texture shows up with bg

I have a metal pyramid which I'm trying to make slightly covered with sand dust. But I don't need it everywhere, so I decided to use a mask. I've never used masks before. I'm using a texture for this ...
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Live MIDI input for EEVEE

I want to write a python script that will allow for a CDJ's Pro Link midi file to get converted into animation modifiers. The goal is to have the midi data's key and tempo to effect some variables, ...
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1answer
23 views

Transparent PNG material without dark

how do I make PNG transparent without dark? I'm trying to add aurora borealis to this planet but it looks more dark than usual, I tried to put a multiply node for the clouds and it did worked but not ...
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How do i control a driver using an RGB node?

Lets say i got a node and i want to change the color of that node with another node using drivers something like this, so if i have my RGB node color set to white, it changes the Diffuse node to ...
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25 views

Proper and easy way to connect nodes

still learning Blender, I find myself dealing with textures. I downloaded models and among the .obj file, I also have a normal, bump, glow, diffuse and specular image. Now, in the shading panel, I ...
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1answer
39 views

How to render a 3d object in a texture

So I have somewhat of a 3d space inside this texture and I wanted to know if it is possible to draw a 3d sphere inside of how do I tackle this with nodes if possible at all, should I use a Parametric ...
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1answer
30 views

Tried Everything Cant find Nodes in Node Editor

I've tried numpad . I've tried ctrl+f nothing seems to work and I cant for the life of my find the damn nodes in the node editor. I'm using a macbook btw, so maybe the problem is that my numpad . isnt ...
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31 views

Is it possible to fit these textures perfect?

I created a material and added a "Attribute" node + a second UV map for the other side of my plane but now i dont know how to make the texture fit! This is the texture: https://www.textures.com/...
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1answer
40 views

how to use displacement node in 2.8

yea this seems super basic but it just isn't working. i've used displacements before and they've worked fine. set feature set to experimental in cycles, switch the material to displacement or both, ...
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1answer
23 views

How to check if EEVEE or cycles is used?

Is there a way for a shader/material to check if it is being render in EEVEE or cycles? I want to activate different nodes that immitate or indicate some effects that don't work so well in EEVEE, for ...
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control mapping node with separate XYZ

why does the separate XYZ only affect the location of the mapping node. how do i tell blender to have it separate any of the the other transforms i.e. scale/rotation. in this example i entered -0.5 ...
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1answer
27 views

Create a glowing sphere with script

I'm trying to create a glowing object with a script. This is the code I have so far. It runs but the sphere doesn't light up. How can I fix this? ...
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1answer
28 views

How do I remove transient pixels from rendered image?

How to remove this semi-green pixels? I need exactly G = 255 color I render this image. And if you zoom in, you can see those pixels as shown above. My goal is to remove those transient pixels from ...
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1answer
20 views

how to connect two nodes to one displacement output?

I need to connect the math node to the displacement output but its currently being occupied by a height map. how can I connect both of these?
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Smoke material- viewer node or through rest of noodle?

I was experimenting with the smoke density and accidentally ran a render with the node wrangler viewer node and it came out very nice with about an 18 minute render. When I hooked it back up through ...
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1answer
24 views

i have 2 textures, how can i turn one the textures on and off?

I have a snow image texture, and a dirt image texture. how can i set it up so I can control how much of the snow texture is showing? for example if i set a value to 0, no snow will be showing on the ...
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42 views

Cycles Nodes: problem combining two procedural masks for bump (fake displacement)

Struggling some problem here. I've made up a procedural node group representing a single area with gradient that can be placed anywhere on a cylinder's side. It works ok. When I combine (via Math Add ...
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1answer
48 views

Blender 2.8 “Shadeless” material setup not shadeless

The following node setup is not functioning as a shadeless material. When the input is set to white, the material renders as grey. You can turn up the emission value, but that does not guarantee that ...
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spikes emerged when i put displacement node in blender 3d 2.8

soo i im using image texture for base color and displacement then i enabled experimental from render tab then i enabled displacement and bump in materials - setting - surface - displacement. and ...
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I want a set of preset Materials, such as glass, metal, stone, etc

I would LOVE to have a set of open source preset materials to choose from so that I don't have to figure out all the physics properties for each substance each time I create a material. For example, ...
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10 views

Access array modifier index in shader

Is it possible to get the array index of an array modifier in the shading editor? I need to shift the UV of every array segment by a certain amount. I can't apply them because the number of segments ...
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1answer
22 views

How would i go about creating a material where i can use a color ramp to control areas or total transparency?

Title pretty much says it. I want to make a material where certain areas are completely see through. For reference i want the black areas of this material to be see through like air not glass.
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75 views

why does not appear in the final render?

why does not appear in the render ???
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20 views

Why my object do not affected with nodes?

When I use shader on a material it will change but the object connected with this material don't change ??
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36 views

Blender shader that imitates sculting in stone

Im new to Blender nodes. Im trying to make a material and apply it to a mesh made of a single square. It needs to be able to take 2 textures. One stone texture, and one that has the ornaments that ...
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1answer
83 views

Curve transforming along the sphere surface, Shrinkwrap alternative?

Bezier circle shrinkwrapped on sphere. Empty doesn't follow path. I accidentally captured this with the curve origin moved to the empty, but that doesn't affect the issue. @lemon provided a ...
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1answer
16 views

Is there an easy way to re-import / re-append image files in a large quantity?

My rather (as of recently common) problem is the following: Every time I download 3d-asset-packs like the ones you can find on Kitbash3D for instance, the image textures are all un-linked in each ...
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14 views

Separate alpha from color in Shader Editor

In the Shader Editor, I can create an RGB node and in there, I can set an alpha value as displayed in this screenshot: However, no color separation node in blender supports extracting that value and ...
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1answer
14 views

Render Viewport shows textures, final render does not (Cycles)

first time posting and fairly new to Blender. I've been working on a project for a couple of days, and so far everything has been working out pretty well. Today I was working on creating UV maps and ...
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2answers
41 views

Repeting texture rather than scaling texture? How to fix it

Trying to add an image texture on my mesh, and i UV unwrap it like this. but it turns out to be Not sure what is wrong with this. Have no clue. Here is my Node setup(i am using backfacing to make ...
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9 views

What are the settings for rendering a diamond? [duplicate]

Are there any full explanations with illustrations for how to render diamonds in blender that are current for 2.8 or 2.79?
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21 views

MixRGB vs Math for greyscale

I'm currently using Blender 2.8, but this applies to 2.79 too. In the shader graph when using scalar/greyscale values is there any difference between using the Math node and MixRGB for the operators ...
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Accentuate shader parameter with mesh face info

I'm getting back in Blender, and I want to experiment with low poly. I have this randomly generated landscape : The goal is to accentuate the elevation contrast between each differents faces. In ...
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40 views

HELP! Switching to Blender 2.8 full version after using Beta made my materials less saturated!

HELP! I created a character using 2.8 Beta. But after switching to the full stable version all of my textures and materials suddenly started to look a lot less saturated. Does anyone know how to fix ...
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22 views

why blender motion track didn't render the movie?

I build a motion tracking animation, but the render result didn't shows my video. I make sure my nodes are linked right. what's wrong with my animation? please help me!
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1answer
25 views

Partially disable File Output Node in compositing?

A File Output node like this ... ... will generate several images at once (here: A001.png, ..., A250.png and B001.png, ..., B250.png and C001.png, ..., C250.png, all in folder D). For reasons ...
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27 views

translation of nodes with 'g' key only working while it is held down

I'm using Blender 2.8 (2019-06-26 13:42) In the node graph I used to be able to select nodes, press G then they would be 'grabbed' and move with the mouse until I left click to confirm or right click ...
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1answer
62 views

Python 2.8 creating Diffuse BSDF in a shader node, when I want it in a surface node

In Blender/Python 2.8, I can't get my code to create the surface node I want (it creates a shader node along with a surface node that I don't want). The objective is to assign an image texture to an ...
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1answer
41 views

Python 2.8 - why does linking the image texture node throw an error?

In Blender/Python 2.8, I am trying to create an image texture node for an object. The last line of the code below throws this error: AttributeError: 'NoneType' object has no attribute 'inputs' I ...
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Problems with Render Layers

I seem to have nothing but problems with compositing and Render Layers. :-\ Every tutorial I’ve followed so far on Blender Guru, I’ve been unable to replicate the process whether in 2.79 or 2.80. As ...
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Python 2.8 - setting an image as the texture for Diffuse BSDF

In Blender/Python 2.8, I am attempting to create a material/texture using Diffuse BSDF as the surface. The process works manually, I just need to automate it. I have the framework for the code below,...
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2answers
506 views

Decreasing star count

I am creating a completely procedural space with some stars, nebula, etc. The stars are generated by a Voronoi texture hooked up to a Color ramp - a pretty usual approach as far as I know. I would ...
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15 views

Need help with lighting and materials for lithophane

so I’ve been trying to replicate some 3D printed lithophanes I’ve made in blender. The problem is I’m not that good at lighting and shader nodes and haven’t had too much success in getting the results ...
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1answer
33 views

Red line from Shader node to Color Ramp

I was following a tutorial in order to learn nodes for 2.8. When this line turned red and made the entire thing pink (missing textures). Does anyone know how to prevent this?
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1answer
114 views

What shortcut to open Node Wrangler menu in 2.8?

I need the shortcut that will open the Node Wrangler menu in 2.8. I found this thread: Shortcut list txt for node wrangler from 2017. It says Ctrl+Shift+Alt+wm.call_menu. But what is ...
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1answer
54 views

Creating realistic procedural wall plaster texture

How do I make a simple procedural texture to get a result similar to this? In real life its a traditional wall plaster that its not smooth. It looks like this in real life.
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1answer
29 views

How do I add colour to this set of nodes?

I'm attempting to create a sort of starry effect using nodes. However, I can't seem to be able to add colour to it. This is the following node setup: And this is the result: This is essentially ...
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Any way to get Object Info node working on Lamps?

I wanted to use Object Index in a material for some Lamps. However, it seems that the Object Index output doesn't work, regardless of what you set on the lamp object. And there's nowhere to set a ...