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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How to keep a certain flow in the animation?

I'm looking for a way to make the animation keep a flow, as if it were a kind of drain... how can I make it keep a certain flow and it doesn't go the way it is?
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Geometry Nodes - How to rotate multiple instances?

I have created a geometry nodes setup which animates multiple objects along a spline, like a tank track. I want to duplicate and rotate this entire set of objects, for example having 4 sets of tank ...
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Principled Volume VS. Volume Scatter VS. Volume Absorption - Key Differences, how they affect the scene and when to use them?

So recently I've been experimenting with an underwater scene in blender and came across a few options for creating the volumetric. I usually go around applying one of the three shaders and see which ...
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How to make volumetric fog darker in the compositor?

So I rendered this glacier scene in layers and I am trying make the volumetric fog darker. However, whenever I try to make the fog darker (i.e. with either the color ramp, color balance, RGB curves, ...
2 votes
1 answer
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How can I make led light strips effect, in EEVEE or even in Cycles?

I have tried a lot to make such a realistic led light effect, but couldn't do so. Tried making plastic material and placing point lights in it, but that didn't help. Even tried using emission, but ...
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Material based on pixel coordinate of an image texture

I've got a scene with a landscape built up of blocks, this is actually made up by instancing a lot of objects onto a mesh. What I'd like to do is use an image to give each block a specific color ...
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Nodes utilization [duplicate]

I made a cocacola bottle using nodes,but when I exporting in fbx and importing the same in Blender,the alpha blend chaneged into opaque ,I want to know where is the problem in node using or in ...
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Noise texture is not oriented correctly

In the image below, you can see my box has the wood texture (modified noise texture) oriented correctly in the front side (the side with a white rectangle on it). But on the other side, it looks like ...
2 votes
1 answer
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Adding 4-dimensional vector that can be used in Nodes [bpy]

Is it possible to create a data type such that I can create custom nodes that take it as input/output? What I'm specifically trying to create is a 4-dimensional vector since that will make a lot of ...
2 votes
1 answer
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How to create position-cells from scratch?

The geometry proximity-node position output is quite mysterious to me, it is able to dynamically split space into position cells, as shown in the gif below. I would like to have a better understanding ...
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How do I make streak highlights that are affected by lighting?

Sorry about the title, it's a little hard to describe. I'm making a toon shader for eevee, and I want to make a specular effect that looks like straight lines across the mesh. I managed to do it once ...
2 votes
2 answers
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What is the use of a "Group Input" directly in the Node tree of the material?

What is the use of a "Group Input" directly in the Node tree of the material? Note, not within a nodes group It can be easily added to the material nodes tree, but I don't understand its ...
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Pulling selected object name from Instance on Points node with python

In the attached picture you can see that the object "Suzanne" from the collection "Objects" was chosen to be instanced by the integer value input. I would like to use that data, ...
2 votes
2 answers
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Problem with "procedural" Blur Background, with Cycles engine, how to solve?

With this configuration of nodes, I can get a Blur effect in the Background, but this works poorly in Cycles, while in Eevee everything seems to be ok. I cannot understand what causes this problem and ...
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3 votes
1 answer
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How to pass a specific collection to an Info Collection node?

In the official documentation on Node Parts it mentions about white colored socket inputs of the Collection Input Node (its ...
1 vote
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Displacement inverted with Cycles and Eevee with a regular Displacement node

Eevee and Cycles inverts the Displacement. It didn't do that before. I suspect there is a setting somewhere that fixes this. Take any displacement map and displace it in Cycles. Now if you go into ...
3 votes
1 answer
187 views

Geometry Node Creation

Is there a tutorial that explains how to create an individual geometry node? I don't mean a node network, I mean the node itself.
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Seams/Stiches showing wrong image

I can't figure out why the seams image doesn't apply before and after the red line (you see smaller versions of blue zigzags). It just takes the cloth texture and reapply where I meant to put the ...
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Swap textures on a mesh using a Python Script

I have been looking for a way to swap textures on a mesh using a script to automate the process but could not find anything on the internet. I have written my implementation of it below, I'd like to ...
2 votes
0 answers
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Is it possible to do integer math with nodes without casting to float?

Question is as the title says. Specifically, I was wondering if there is an integer variant for the Modulo Math node (and by extension all math nodes, I imagine integer division would be useful, for ...
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3 votes
1 answer
65 views

How to change wave texture mathematically?

I want to achive this result for my column without using additional modeling (just shading and procedural textures, sorry for bad quality, I don't have better one): For now I have this material (the ...
1 vote
1 answer
23 views

The Texture looks paler in the preview compared with the UV map

My issue is shown as below: The texture of the face in Blender is paler if compared with the substance painter preview and the texture shown on the right side of the image. As you can see, I am on ...
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1 vote
1 answer
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What is the diference between vector socket in "set position" and "transform"

I am trying to apply a transformation to an object, but only depending on the index of the copy using multiply to zero index 0 results. The editor reports an error that I am unable to understand, the ...
2 votes
2 answers
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Shortest Edge Paths between two empties

so I'm trying to get the shortest path between two empties using the "Shortest edge paths" node, but I can't figure out how to get the vertex of the mesh where the object is located. I ...
2 votes
1 answer
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How to get consecutive colour using gradient node on joined object

I have joined the spheres as one object, and added a gradient texture and colour ramp with 3 colour transitions ( blue, Orange, Red). I'm playing around with the Rotation in the mapping node, but its ...
3 votes
1 answer
59 views

How to get more contrast on anisotropic chrome material

I want my chrome object to have more contrast and rays like the photo image. I have used 2 shade mixers. One for the texture of the chrome material, with radial texture, and the other with anisotropic ...
2 votes
1 answer
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Is there a way to freeze/cache nodes so that it doesn't have to reprocess everything?

I'm working on a geometry nodes setup, there is one node which input doesn't change, but this node takes a long time to calculate, and I'm constantly changing things that aren't affecting this node, ...
1 vote
1 answer
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Anisotropic textures from Substance Painter to Blender

I'm trying to export anisotropic materials. Seems all fine until I load them into Blender and I cannot see the anisotropic texture on my object. I was told to add emissive to the channels to see if it ...
1 vote
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53 views

Wrap operator function in Math node?

What's the function of the Wrap operation under Math node in Blender? It has a value input and a max and min value. Can someone explain its function?
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Geometry Nodes. How do I shift a plain's vertex position based on whether or not a selected object hits it/ lands on it?

I've made this simple plain, and used it's noise attribute to guide positions of instances, Wherever the ground is lower than a certain z, The grass is thicker There are pebbles Node Trees Below Is ...
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How would you randomize a wave texture per brick on a brick texture?

I followed this YouTube tutorial but have realized there's 1 problem. The wave textures in the video almost look like they're connecting even though it's seperated by black lines. My .blend file ...
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Can we have a foam like texture in a bottle in Render Engine : Eevee?

I'm stuck in a project , I've to make a foam like texture in a bottle but having difficulty to make that in Eevee , in cycles it could be achieved but the system heats up a lot so no video rendering ...
1 vote
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Ambient Occlusion Dispersing Unevenly

So I'm still pretty new at using the ambient occlusion node (for making edge wear). And I noticed in certain places it was unevenly dispersing the gradient (which is pretty noticible in the end ...
1 vote
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Creating a flat lighting Shader in the style of Alphonse Mucha

I'm attempting to create a character shader that mimics the artistic style of Alphonse Mucha. The style consists of the skin having a singular base color that's then shaded from the brightest edge to ...
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Is it possible to bake a transparent glass texture

If you wanted to bake a transparent glass or plastic texture for a client, how would you go about doing that? What kind of texture map (glossy, roughness, transmission) would you use?
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1 answer
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Change node editor link's color through python script

For the project I'm working at the moment it would be very useful for me to highlight some of the links in the node editor (for links I mean edges between nodes) by changing their color with a custom ...
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1 answer
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Why is blender forgetting the 'type' function when I try to copy nodegroups?

I'm upgrading my procedural addon with the ability to add individual procedural groups into other materials. I've figured out how to make buttons on the side menu that do it, but it's less than ideal. ...
1 vote
1 answer
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How do I go about making individual parts of a material more shiny without making the whole material as a whole more shiney?

So I am practicing with materials and I was curious if there is a way to make it so that these individual colored specs are more metallic and/or shiny without making the material as a whole more shiny?...
2 votes
1 answer
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using nodes to replicate gimp's grain extract mode

I am not getting the same results as Gimp. I checked out Github and the formula for the Blend Mode is [blendModeKeys.GRAIN_EXTRACT]: (i, m) => ( i - m + 0.5 ) I used MixRGB Nodes and got results ...
2 votes
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how would you go about to recreate this edge texture? (sawed off wooden edge)

I have not been using blender for quite a while and tried to recreate this texture with displacement maps, but have not gotten that far. How would you proceed? I have tried weight painting and using ...
1 vote
1 answer
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Image in compositing showing and then disappearing

I've been following BlenderGuru's Donut video tutorials for Blender 3. I'm up to the Compositing chapter, however I'm stuck at the very beginning, because the compositing backdrop isn't showing: ...
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1 answer
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Is it possible to remap the pan function in node editors? Middle Mouse -> Right Click

I didn't see this in the keymap. I'm thinking it's hardcoded and haven't found an addon that'll do it either. I use a few other applications that all use right click to pan the node graph so I'd like ...
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1 vote
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why does a noise texture multiplied by 1 turn black and white?

I am trying to follow a Tutorial about distortion. I don't understand why a math node (multiply) turns a noise texture, which gives me RGB values, into black and white ones. From my understanding, ...
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2 votes
1 answer
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How to project a grid onto a circle/torus using geometry nodes?

Using this geometry nodes graph, I've created a grid of a simple "tile" mesh. I want to project this grid onto (or restrict this grid to) the surface of another mesh (the parent of these ...
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Adding a texture to downloaded assets

I've recently got into Blender so texturing etc is still a bit new to me and I apologise if this question is silly. I downloaded some royalty free FBX models from CGtrader and downloaded the mapping/...
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1 answer
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How to create independent instances of shader node groups?

I'm using Armzep's beautiful "Smartedges" shader node. It's working great! I want to create separate instances of Smartedges for different materials used in the same Blender file with ...
3 votes
3 answers
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How can I use nodes to automatically resize render output independently of render resolution?

I'm making render similar to PS1 games from the 90s. An important part of that look is the low render resolution. Right now, I render a PNG near the PS1's maximum native output of 640x270 then scale ...
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The Screen/Mix Compositing nodes cant fully mix two image sequences/videos together

There is the real time video and an image sequence of an animated lightsaber. They are connected through a Screen node to the composite and viewer nodes. The original image sequence of the animated ...
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1 answer
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Confused by Value to String node

Why do I get a red line from the Separate XYZ node to the Value to String node? I'm trying to break the vector down into it's component parts, and examine the X component. At least, that's what I'm ...
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Viewer node does not pop up in Blender 3.0

I am close to nervous breakdown. I have tried everything but the viewer node does not show up. I have rendered the image. I have enabled the node Wranger add-on. When I click Shift+Ctrl+LMB the ...
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