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Questions tagged [node-editor]

Questions relating to Blenders node editor. The node editor is used for non-destructive texture and material editing; for geometry node editing and for post-processing/compositing.

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10 votes
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How do I get 1 for a certain range of a value?

I want to drive a shader with a value node. If the value would be from 0.1 to 0.3, I want the output to be 1 and otherwise I want it to be 0. I was thinking about using Greater Than and Less Than, but ...
Václav Musil's user avatar
10 votes
4 answers
7k views

Create a gradient dependant of distance to an object

I have the following scenario in cycles: I would like to know if it is possible to create a gradient on a plane like the one on the image above where the colours depend on the distance to an object (...
Miguel's user avatar
  • 165
10 votes
2 answers
6k views

What does the fraction math node do?

I am trying to learn some procedural basics. Could you tell me what the fraction math node does? Is the result similar to modulo?
Soviet Wizard's user avatar
10 votes
4 answers
2k views

Geonodes mix position with random index values - How to make random values unique?

I'm animating a Mix-RGB position change in a geonode setup that shifts an instanced plane from 2400 grid vertices to a different series of grids that add up to an equal 2400. The mix animation didn't ...
huoshankyoryu's user avatar
10 votes
2 answers
5k views

How do I get the Color value from an RGB node with Python?

I'm a seasoned programmer, but fairly new to blender and 3D-modeling in general. So to get an understanding of different properties I want to write python scripts to create multiple renderings with ...
UlfR's user avatar
  • 237
10 votes
3 answers
3k views

How to get all types of nodes dynamically?

The node editor is constantly changing due to cycles. There are new nodes in every release of blender so I'd like to know whether there is a way to get all available node types in a list. I remembered ...
brockmann's user avatar
  • 12.6k
10 votes
2 answers
840 views

Guillaume Kurkdjian Water Material

Guillaume Kurkdjian has this really cool water: How can I achieve this water in blender cycles? (material and modeling of the water) The closest I've gotten is this: This is the material settings ...
Alex Safayan's user avatar
  • 1,116
10 votes
4 answers
10k views

How to make Volumetric Scatter fade adjustable

In Cycles, I'd like to create a misty torus. Create torus, Volume Scatter note into the Volume Material Output node. Done. But I'd like to be able to adjust the density of the scatter with respect to ...
OroNZ's user avatar
  • 1,207
10 votes
4 answers
20k views

Render depth maps with world-space z distance with respect the camera

I am trying to write the depth map of a scene in a 16-bit PNG, without any sort of normalization. I would like to pixels of such depth image to be set to the distance with respect to the camera, and ...
Dan's user avatar
  • 245
10 votes
4 answers
2k views

How to mix a jpeg background image with a 3D scene generated using Filmic Blender?

I want to compose 3D-model over image, and I use filmic to get more suitable result. But I want the background image to remain in the original colors. So I try to use this setting: but it haven't ...
Crantisz's user avatar
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10 votes
1 answer
2k views

How to make Abstract EM Waves material in Cycles?

I found out a cool image on Internet, and I want to recreate a similar scene (or an animation) with Blender (using Cycle). But after all of my researches, I didnt find out a way to make this type of ...
Alois Coissard's user avatar
10 votes
1 answer
44k views

How can I make an object invisible when I render in Cycles?

Using the Cycles Render Engine How can I make an object invisible when I render?
user avatar
10 votes
2 answers
898 views

What does “Use the pinned node tree” do?

In the Node Editor (Blender 2.67) there is pin icon in the menubar below, which is described as “Use the pinned node tree”. What is it used for?
mnxd's user avatar
  • 335
10 votes
1 answer
5k views

Sine wave using only Math nodes?

For the purpose of animating materials, is there a way to construct a sine wave function out of Math nodes? A while back I asked about how to do something similar with scripted driver expressions. ...
Mentalist's user avatar
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10 votes
2 answers
25k views

How to rotate a gradient in the node editor?

How do I rotate a 90% gradient in the node editor without rotating the object (see attached picture). Can I do this in the space properties editor or I probably need to add another node? All I want ...
elmentor's user avatar
  • 807
10 votes
4 answers
50k views

Ctrl + T doesn't work

I usually used Ctrl+T for my Texture Setup, but it doesn't work. I enabled my node-wrangler-add-on, but nothing changed. I already googled for a whole while but didn't find anything helpful.
Tlender's user avatar
  • 101
10 votes
1 answer
2k views

Project scene to plane in real-time

I understand I could render out the view my camera and then just that as an image texture, however, I want to try and achieve this effect in real-time. The idea is derived from an effect present in ...
masterj2001's user avatar
10 votes
1 answer
4k views

How can I bypass a node?

Sometimes when working with nodes it is useful to see what my setup looks like without a certain node. I know I can delete a node without breaking the chain with Ctrl+X and then undo with Ctrl+Z, but ...
PGmath's user avatar
  • 25.2k
10 votes
2 answers
784 views

Reverse effect of Defocus node?

I am trying to reverse the effect of the Defocus node as shown below : As you can see the Front is being blurred and the back is focused , is it possible for the front to be focused instead?
Knuckles209cp's user avatar
10 votes
2 answers
2k views

Node containing text?

Is it possible to add a node to the middle of, say, a material, that just contains plaintext information for people viewing the node tree? I know that it's possible to add a tooltip to frames, which ...
Kyle Willey's user avatar
  • 1,943
10 votes
1 answer
4k views

How can I find where an image texture is being used?

I was scrolling the images my file uses, and I noticed an image, that I don't remember, is used in my file. I tried going though all the materials and looking at nodes to find which one uses this ...
Emma Lane's user avatar
  • 245
10 votes
1 answer
4k views

Correctly re-combine ALL render passes?

So, there are some great tutorials around the web about isolating render passes in Cycles so that you can make changes, and then recombine all of your work as one complete image. You'll probably have ...
Mentalist's user avatar
  • 19.3k
10 votes
2 answers
6k views

Where is the Vector math add node?

I want to have one material for a bunch of objects and have them generate a different UV for each. This question has been answered here, but I can't find the "Add" node that accepts vectors. My Add ...
krivar's user avatar
  • 671
10 votes
1 answer
701 views

Why are some material nodes connected to themselves?

Here's a small thing I've been wondering about for a while: Occasionally, when I import models from other sources (e.g. 3ds Max -> FBX -> Blender), I see in the Node Editor some nodes which are ...
Nam-Quang Tran's user avatar
10 votes
1 answer
10k views

Setting Group Node Socket Type

Is there a way to add a socket of a specific type to group nodes? Currently, it seems that they default to grey scalar sockets, and I don't see any way to change their type.
ajwood's user avatar
  • 10.1k
10 votes
3 answers
2k views

How to make a realistic Pepsi material?

I'm trying to make a realistic material of pepsi. I want it to look like this: Without the ice cubes of course. I found this, but it doesn't look very good. It is also going to be a fluid simulation. ...
Daniel's user avatar
  • 622
10 votes
1 answer
2k views

How to make a circular rainbow effect?

I've played Nier Gestalt and Beyond Two Souls games recently and noticed that in both of them the circular/half-circular rainbow effect appears. Could somebody tell me what is this effect called and ...
Paul Gonet's user avatar
  • 33.4k
10 votes
3 answers
6k views

Is it possible to get an objects scale through an input in the cycles node editor?

I am working on a material for a candle, but I'm using the geometry input to get the Z value as a fac for a mix shader. I've already taken into account the objects position using the object info ...
Cameron Atkinson's user avatar
10 votes
1 answer
4k views

How to unlink a node with python?

Having a node, I want to unlink it. My current approach is to clear all links from a desired NodeSocket: my_node.inputs[0].links.clear() I get a: ...
brita_'s user avatar
  • 663
10 votes
3 answers
3k views

When to use add shader?

I know the basic difference between a mix shader and an add shader, this question is about the applications of each. I have heard that add shader should be used with translucent shaders. But in ...
PGmath's user avatar
  • 25.2k
10 votes
2 answers
22k views

Whats the purpose of Ambient Occlusion node in Cycles?

I can only connect the node immediately to the surface otherwise i don't get any AO effect. I cant use for example as the vray dirt map. So what the purpose of it? thanks in advance :)
Leo Yfver's user avatar
  • 543
10 votes
1 answer
5k views

Make "gaussian laser beam" (object with variable radial emission profile)

Laser beams are usually not cylinders of light, but instead they have a smooth beam profile, where they are brighter in the center of the beam and dimmer towards the sides. The cross section typically ...
DanHickstein's user avatar
10 votes
1 answer
1k views

ignore self-shadows for a cel shaded effect?

So For this project i'm trying to achieve somewhat of a cel-shaded look. Cel Shading is an attempt to make 3D Art look 2D, But The Main problem I've found with Cel Shading effects is the shadows are &...
Marux's user avatar
  • 222
9 votes
3 answers
1k views

How to create a Life Preserver style texture?

A friend of mine is creating a mint object and asked me about how I would approach creating the Life Preserver/Mint style texture. I've done similar things before with striping using a Wave Texture &...
Rug's user avatar
  • 833
9 votes
1 answer
25k views

How to Create a Vinyl Plastic Toy Shader?

How can I make one of the vinyl toy plastic material like this? Video: https://www.youtube.com/watch?v=8Njl5hLmGs0
Jayem14's user avatar
  • 245
9 votes
1 answer
2k views

Can I colour the same text in two different colours? [duplicate]

I want the text to have this sort of colouring And this is the text.
Truly The Craziest's user avatar
9 votes
3 answers
3k views

atan2 equivalent in Cycles nodes?

The Cycle's math node has an "Inverse tangent" option. This function however cannot discriminate between two opposite points on the circle, as they have the same tangent. Usually, this is solved with ...
olamundo's user avatar
  • 428
9 votes
3 answers
1k views

How may I get a single stripe of color to flow along an object?

I'm toying around and trying to get a single red stripe to flow along the length of a cylinder. I'm trying to copy ideas from this tutorial, but I can't quite get it right. I made a gradient with ...
n0ah's user avatar
  • 517
9 votes
2 answers
30k views

Backdrop doesn´t work/ image won´t show up (for compositing)

Hello, i am in the last part of the blenderguru-tutorial. I want to use compositing in order to change the final image. The problem is backdrop won´t let the image appear in the background of the node-...
Irenäus Blaszkiewicz's user avatar
9 votes
3 answers
8k views

Feathering Edges in Node compositor

Is there a simple way to feather edges in the Node compositor? Here is an example of what I'm trying to achieve.
Mellow Almas's user avatar
9 votes
2 answers
16k views

How to connect nodes very fast using shortcut?

In Compositing nodes window there is an option to quickly connect the selected node to a viewer node using some kind of keyboard shortcut. I can't remember what it was. The only thing I remember is, ...
Paul Gonet's user avatar
  • 33.4k
9 votes
1 answer
7k views

Node "Recipe" For Asphalt?

Is there any sort of node "recipe" or tricks for making asphalt? I'm making a road and I was wondering if there is a way of using shaders and/or other things in the editor to make it look more ...
BinaryGreen's user avatar
9 votes
2 answers
2k views

Colours in OpenVDB volumes

*For more detailed information; see below I am working with (OpenVDB) volumes in Blender, which I use to create animations. This is an example: Both sides are different .vdb files. Now, I want to ...
Roy's user avatar
  • 85
9 votes
3 answers
2k views

Falloff node setup similar to 3DS Max falloff node? Need perpendicular / parallel falloff for correct fabric rendering

Notice: After all of the awesome advice given here, I ended up creating a node group that clones 3DS Max's falloff map (for the most part). Feel free to download in my latest answer to this question. ...
fmotion1's user avatar
  • 1,433
9 votes
1 answer
3k views

Scaling Texture based on distance to camera

Is it possible to make a node setup to where if a camera is close to an object, the texture gets bigger, but far away it decreases in size?
NeutronBlender's user avatar
9 votes
2 answers
4k views

Can you export compositor nodes?

Not sure if this is a dumb question or not, but can you export compositor nodes to another project? I'd rather not recreate them on different projects for similar effects.
Douglas Gaskell's user avatar
9 votes
1 answer
5k views

Can I get the object dimensions in Cycles?

Can I get these dimensions: (bpy.data.objects['Cube'].dimensions) in a Cycles node, as a vector? I tried an Attribute node with dimensions[0] as the Name, but ...
wchargin's user avatar
  • 9,452
9 votes
2 answers
443 views

Can you replicate Optics Compensation in VSE?

The Effect "Optics Compensation" in After Effects is great to compensate the distortion of certain lenses such as Fisheye lenses or wide angle, etc. I have only so far been able to replicate this in ...
MicroMachine's user avatar
  • 4,703
9 votes
1 answer
8k views

How do I repeat a gradient color ramp?

I have a gradient on a cube with a color ramp. In the picture below you can see the color ramp is repeated just once. I would like to find a way how to repeat it 5 or 10 times. I could do this on the ...
elmentor's user avatar
  • 807
9 votes
1 answer
7k views

How to disconnect a light path node

My question seems obvious but I did not understand why I could not disconnect the path light node for other node. I have never had a problem with other node. To disconnect any node ,I press the left ...
BetterEnglish's user avatar

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