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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4
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2answers
193 views

Why are there thick edges in Voronoi 3D/4D?

I was playing with Voronoi and discovered that if I use 3D/4D, some of the edges are thicker than others. In my opinion, it looks unnatural and neither colorramp nor greater/less than can solve this ...
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0answers
16 views

How to get my node in the update function of a BoolProperty?

How to find the node referenced by the update function of this BoolProperty property? I usually use self.id_data for other types of PointerProperty, but in this case I get the node_tree this node is ...
0
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1answer
25 views

Blender Shader Node interpolation

I'm trying to color a cube with its own position in 3D space, which works well with the shader node setup I have, but only sets the colors for the vertices. However, I would like this to interpolate ...
1
vote
1answer
32 views

Why does the lighting do not work?

it worked before but I decided to turn up samples and turn on denoising and such because it had to much noise/ white pixels and then after that the render is so dark. Here is the blender file
1
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0answers
29 views

Where is the Chroma Key in Blender 2.92.0?

Using Blender 2.92.0 and I can only see the Keying Node in Compositing but not in Shading Nodes section. I watched a video of how to setup the chroma key green screen removal using Compositing and ...
2
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1answer
80 views

How can I edit two materials simultaneously?

Whenever I open a new shading window, whatever I do in one is just mirrored on the other. If I click a node in one window, the same node and material get selected in the other. I can't edit two ...
8
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1answer
471 views

What is this node usually called?

I'm trying to find the Color Factor node shown below. It's typically already added in there attached to the Principled BSDF by default, but from time to time I have no idea where to find the node once ...
2
votes
1answer
24 views

Voronoi texture have different options [duplicate]

I'm following this tutorial: Ducky 3D - Hard Surface landscape in Blender 2.8 But I have different options in Voronoi Texture node. How can i get this result?
0
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0answers
23 views

This is a question about material replacement

If there is more than one material in object mode, is there any way to leave the material in the existing slot and change it to a material in another slot? I'm looking for something similar to the'...
1
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1answer
26 views

How to have the texture of a circle separated in bands each with a different factor (or color) in a shader? [duplicate]

I created a simple shader to subdivide a circle in a specified number of bands. Each bands has a number between 0 and 1 and the factor (color) for each band is (previous bands + 1/NumberOfBands); I ...
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2answers
28 views

How to hide the alpha of image planes? (Images as Particles)

I'm at the point where I need to add node materials to my leaf branches to make the colors diverse and react well to the lighting. However, whenever I add the mix shader nodes, the blank transparency ...
3
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1answer
51 views

Point Separate Node not working in 2.92 Release Candidate?

I'm trying to separate a point cloud into 2 different outputs using a geometry node and no matter what i try, the point separate mask isn't picking up the attribute, Geometry Output 1 is just showing ...
3
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1answer
199 views

How do I create a procedural mask for mountains texture?

I'm going to try to explain this as well as possible but feel free to ask any questions for clarification. I have mountains and plains (picture below) and I'm trying to create a procedural mask that ...
0
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1answer
25 views

Delete nodes that does not contain mesh?

I'm pretty new on Blender and I have a problem. I imported a quite huge model hierarchy and some node contains no mesh. Is there a way to automaticaly delete all node that does not have mesh ? Thanks....
3
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1answer
35 views

How to bake materials [With complex node setup] into Texture in blender 2.9?

I want to convert my snow material into texture and I followed the baking method but for some reason only the sides of the object are baked any kind of help or fix will be appreciated my node setup ...
4
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1answer
47 views

Get Loc/Rot/Scale of object in material using Object Texture Coords?

Sometimes you want to get an object's Loc/Rot/Scale in the material for fancy vector stuff or controlling procedural textures. This is usually done by creating a bunch of Values driven by the ...
6
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3answers
615 views

How to avoid violating energy conservation when making shaders and node groups?

Recently a user on here offered a tip to be careful when making shaders so I don't violate energy conservation. Blender stores colors in the value range of 0-1. If you go above 1, then more light is ...
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0answers
19 views

Nothing is showing up on my compositing panel

I have the nodes turned on and have even added things to the space, anyone have any solutions?
0
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0answers
19 views

how to make a material that is slightly translucent emits light with some transparent elements [closed]

I have this object and there's a certain effect that I want from it. I want the whole object to be slightly translucent and to emit light In the red box I want it to be all the same transparency, but ...
4
votes
1answer
277 views

Looking for a more gentle Brightness/Contrast algorithm than the native node

I am trying to put together a brightness/contrast node group. I am aware of the one in Blender, but the algorithm is lacking in my opinion. Here's an example: Here's an adjustment made in Photoshop: ...
5
votes
1answer
468 views

Desaturate colors around lightsource

I'm still new to Blender and I just found out that lights have a nodes option and that there are many things you can do with them. I am working on a render but I have an issue with an area with ...
1
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0answers
18 views

is it possible to have realtime semi detailed outlines and inner lines with nodes in 2.91?

I've decided to use the inverted hull method, but I was wondering is it possible to give abit more detail with some inner lines. I did come a node outline thing, but it's only for 2.9 and for some of ...
1
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0answers
29 views

How to make fake rope animations [duplicate]

Can you guys give me some advice on how to make animation like that? I want to create an animation very similar to this in the video. Rope Animation Example Thanks for any advice
5
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2answers
90 views

How to convert HSV to RGB using shader nodes?

I am trying to implement the following function that converts HSV to RGB: ...
3
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3answers
212 views

Having trouble implementing a function in the node editor where the source uses if/else logic

I am creating a color saturation node group in blender as an exercise. This is the code I'm trying to implement: ...
3
votes
1answer
52 views

How to compare three (or n) values and output the minimum value using nodes

I want to compare three values (RGB) and then pass the minimum (or maximum) along the node chain. For instance an input of (100,50,255) would output 50. The math node only allows you to pass along one ...
2
votes
1answer
28 views

How does the Mapping Node work?

I am wondering how the mapping node exactly works. The only thing I need to know, is what the individual Location, Rotation and Scale vectors, especially the Location vector, do to the input vector. ...
2
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0answers
28 views

Is there a node-based implementation for saturation that works a little more like Photoshop?

I am asking this question because I am putting together a node group to adjust some basic color and contrast settings for texture maps. I really hate the way that Blender's Hue/Saturation node ...
1
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0answers
14 views

Mix shader not connecting ColorRamp and Transparent BSDF together in 2.9

I'm following a lesson of what I think was made in ver. 2.8 and I'm currently using 2.9. As you can see in the image below (mine | lesson), in the lesson part the ColorRamp and Transparent BSDF are ...
4
votes
2answers
125 views

How to I change the Interpolation Type in the Map Range node like the documentation says?

According to the documentation, you should be able to change the Interpolation Type of a Map Range node. I am on 2.91.2 and don't see it. Is this a new feature that I don't yet have access to? ...
2
votes
1answer
32 views

Why doesn't a value node set to 1 evaluate to pure white in the shader editor? [duplicate]

I am starting to work with math nodes more often and came across something I don't understand fully. When you preview a value node that is set to a value of 1, the result is not pure white. If I crank ...
3
votes
1answer
60 views

How do I denoise an image sequence that has already been rendered?

I have completed Andrew's donut tutorial and I have a full set of 30 frames that makes up the image sequence. I opened another Blender tab (closing down the tutorial with saving) to compile the frames ...
3
votes
1answer
75 views

blender 2.91.2 bevel node doesn't work properly

bevel node doesn't work properly in rendered mode with cycles, it darken the edges rather than soften it
2
votes
1answer
17 views

How to change Blender compositor node value beyond max value?

I am using glare node in the compositor to add streaks. However, the angle offset only goes from 0˚-180˚. This would normally be fine when there are 2+ streaks as the effect can be rotated for any ...
0
votes
1answer
16 views

Laser bolt glare problem in blender 2.9 [duplicate]

So I'm trying to build a laser bolt like in Star Wars, and I added a cylinder with an emission texture. The problem is, in Star Wars, the laser bolts have glare, so I added a glare node in the ...
0
votes
0answers
35 views

Blender transparent bsdf not fully transparent

I was trying to add a fire effect to the side of this car. I wanted just the fire to be showing and everything else transparent. I made the node setup. But for some reason, the transparent areas were ...
4
votes
2answers
240 views

How to connect value from custom properties to value of object's translate/rotation/scale

Sorry I'm new to Blender, came from Maya. Let's say I want to move object A via changing value from object B's custom properties, how can I do it in Blender? In Maya, there's something called ...
2
votes
1answer
64 views

I want to make a nasty wriggling worms procedural shader

I saw a tutorial to make a spaghetti shader in substance designer, and in that they used some default noise texture that they altered to look like noodles. I want to do something similar in blender, ...
1
vote
0answers
22 views

Blender 2.9 - are nodes mandatory for using image textures?

Back in the day, there were textures slots linked to materials it seems overkill to use a shader just to apply a simple unshaded image for instance why the option of not using nodes at all ? why a &...
2
votes
0answers
24 views

Using CFD temperature data to generate lighting

I have a VTK file that contains volumetric data on the temperature at different points on a flame. It has been obtained using a CFD simulation, with the file containing different values of temperature ...
0
votes
3answers
52 views

Why is this object reflective only in Blender?

I'm having some trouble with a material. While my project was created with an OpenGL normal map format, the export setting I used in Substance Painter was a DirectX-centric template. I've since made ...
0
votes
1answer
26 views

Can i use a png as a colorramp?

I kind of know how to change a models shading with a color ramp but most of the time I'm in a situation where I have to use a gradient that isn't in a gradient format like png or jpg. i have no way to ...
6
votes
1answer
54 views

Combining vector displacement and standard black and white displacement nodes

I am currently working on an ocean scene. The water uses a subdivided plane with waves that are displaced via the vector displacement node in the material. I would like to add another whirlpool effect ...
0
votes
1answer
16 views

How to use properly viewer node

I'm having my first approach with Nodes, I don't understand how to use the viewer node, on the manual it is said that shift +ctrl+LMB on the node and the viewer must appear, but nothing appends when I ...
0
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0answers
36 views

I can't get good displacement on my donut!

I'm a noob Blender user following BlenderGuru's donut series. I'm on the part where he does displacement, but it just doesn't look as good as his. Mine isn't horrible, but its definitely not good. ...
0
votes
1answer
27 views

How to make node disappear

It seems to make the value node disappear while connecting it to group input. I've tried different combinations and have node wrangler on but I'm not sure how to get it. I'm also unclear as to exactly ...
2
votes
1answer
31 views

How to set up 2 different worlds nodes for render

I have two objects in my scene cube and plane, and I have set up 2 different worlds. is it possible to assign a world node which will influence the specific object in my scene, One world for the Cube ...
0
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0answers
17 views

How do I change background image's size in compositor? [duplicate]

How can I change background image's size in compositor? The following screenshots are showing my node setup and the current size of the background image.
4
votes
1answer
57 views

How do I displace/distort a texture map with another texture map?

I want to use a vector map in the node graph to displace/distort a 2d texture map, where X and Y values denote 2d direction and Z denotes strength. i.e. Suppose I have two noise texture maps from two ...
2
votes
0answers
24 views

More than four color mixes results in mesh turning pink (Eevee)

I have a group of texture colors and color mixes that mix them together into one shader. There is a value counter that changes which texture shows on the mesh (If value=0, then switches to texture#0. ...

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