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.

655 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
1
vote
1answer
16 views

Assign node value

I am trying to assign a value to the 'Fac' input of a Mix Shader. I have tried this, but it fails (value: invalid, expected a StructRNA type or None, not a float): ...
1
vote
0answers
44 views

Convert bump node back into its input texture?

Let's say I have a Bump node with a greyscale texture going into its Height input. The node outputs a Normal socket, which you then usually plug into your shader node. Is there any conversion I can ...
1
vote
0answers
74 views

Gradient following the shape of a face

In blender 2.79, I was able to create a gradient following the shape of a face (like a ngon circle with 8 edges) using the parametric output of the Geometry node plug into the quadratic gradient. But ...
1
vote
0answers
19 views

How to Add a Material to a Lamp in the Blender Game Engine

I'm making a game in UPBGE mainly it has a day/night cycle. I made a street lamp with a spotlight. I'm asking for a way to use nodes in for the lamps in the game engine.
1
vote
0answers
39 views

I'm Making Volcano Eruption and the Splatter Texture Always Repeats, Why?

I'm trying to make a volcano eruption modeling like in CG Geek Youtube Channel. The guy who teaches in CG Geek is using 2.79 but I'm using 2.8 and I'm doing exactly the same things with the guy but ...
1
vote
1answer
114 views

A Black Material Problem on imported DAZ Obj materials

I'm currently trying to materialize a DAZ Imported OBJ Character and the process was difficult, but I'm making good progress in the translation. However, I've run into a wall. Im trying to simplify ...
1
vote
1answer
146 views

Node Wrangler - No folder selected

I'm new to this forum and to Blender as well. I'm starting to learn a little bit of Blender 2.8 and just tried to use the Node Wrangler add-on. I when try to click the 'Add Principled Setup' option on ...
1
vote
1answer
40 views

Reflect Color as BW

I have a scene set up with colored spotlights shining on a cube. Beyond the cube is a mirror, which reflects the scene. I would like the reflected colors to be black and white. The spotlights are ...
1
vote
0answers
66 views

Animation Nodes - Trigger Armature’s instances action?

I have quite a complicated shot to do: as the camera moves in the scene, hundreds of props are constructing themselves. One same props can be like 50 times in the scene. What I did for now is create ...
1
vote
0answers
13 views

Retrieving the Material from a NodeTree

For a driver scripted expression I want the name of the material for a node input value. It's an emission node and I want to make the following scripted expression for the emission strength: ...
1
vote
0answers
86 views

Render 3D probability volume (3D texture) cycles / eevee

I'm looking to render photorealistic volumes from 3D textures (think MRI scans) together with geometry. So far, everything I've seen to do this is specific for BI, not for cycles or eevee. However, ...
1
vote
1answer
32 views

Creating a Stereoscopic video from a Movie Clip using Blender Compositor

I am trying to use the blender compositor to perform this conversion process to create a SBS video for use on Google Cardboard. In principle it works by manipulating each individual frame in a movie ...
1
vote
0answers
133 views

Blender 2.8 eevee - Is there a limit for image nodes quantity in a material?

I'm making a customizable character with switchable skin via driver. It is organized by 9 types of skin and each type with 3 make-up as you can see in the 1st image. A total of 27 images. So the ...
1
vote
0answers
1k views

How to see the shader preview?

In shader editor , how can i see the preview of the shader or any nodes without it's being applied to objects ? something like 'viewer' node in compositing editor. Right now if i have lot of 'image ...
1
vote
0answers
34 views

How to make a texture circle around each vertex

i'm not sure how I can get the texture to originate from each vertex but my current method seems to fall apart because of each face's orientation curent material a gradient fanning out from every ...
1
vote
0answers
49 views

How to create a script that will evenly distribute selected nodes?

I would like to create a script that would evenly distribute the locations of some selected nodes so that I can better organize my node trees. I'm seeking a script solution for this issue, instead of ...
1
vote
0answers
146 views

Creating a UV map through the Node Editor

Is there a way to create a UV map in Blender inside the node editor? I want to create a universal UV map in a custom shader node I am building for all of the objects that use it. I'll be using ...
1
vote
0answers
26 views

Fire emission is cube shaped

So heres my problem: Im trying to simulate an explosion (after this tutorial: https://www.youtube.com/watch?v=QUrRu7CB6sE&t=221s). But as soon as I crank the emission of the material of the smoke ...
1
vote
0answers
35 views

sun lamp is turning window white for some reason

I have an hdri and a sun lamp. I am not sure why the window is turning white? I have attatched a picture of the node set up of the window material.
1
vote
0answers
81 views

Shadows form hdri are harsh and noisy

Can anyone help me light this indoor scene? The shadows are so harsh or the noise is so much in every render. Can't get it to look good at all. I am just using an hdri and the oversized light bulb ...
1
vote
0answers
460 views

blender 2.8 texture not showing up in nodes viewer and not updating in texture paint on change in nodes

I am trying to load a mask image into Blender, process it right there (instead of doing it, for example, in Photoshop) and use as a mask in the texture paint. I create the new mask texture, go to the ...
1
vote
0answers
21 views

Is it possible to get node data from a different object, than the one being rendered?

More specifically, if I have a curve that a specific object is following, and I want rendering to change based on a property of how far along this track that specific object is, can I pull the exact ...
1
vote
0answers
122 views

I am unable to find the Principled Volume Shader within my Cycle nodes. Any idea why?

I am unable to find the Principled Volume Shader within my Cycle nodes. Any idea why? Unable to find within my list. I do have the Principled BSDF but not principled Volume I am running 2.79 on a ...
1
vote
0answers
63 views

Noise texture+bump node disables smooth shading

I did a hair for a model using curves, It looks smooth in the preview but in the render its not smooth. I know that what is creating this is the node setup that I'm using to give the hair effect, ...
1
vote
0answers
21 views

animation rig texture rendered error

i would be so thankful if anyone answer this question :D. my mouth rig texture works fine in all viewport shading except at the rendered mode, it controls both my uv mesh which is the body part and ...
1
vote
0answers
40 views

Can you make a node socket entirely transparent?

I know you can set a node socket's fill color to anything color, but can you also set the stroke color to any color too so that the socket is completely invisible? The need for this feature is really ...
1
vote
0answers
22 views

Material nodes - make a range of values?

Ok, Im trying to fake volumetric light shafts using this node setup and a gradient texture made in photoshop: Basically this still looks not great, and I want to have a "gradient" of the emission ...
1
vote
0answers
28 views

eye texture issue

i'm not sure why the eye texture is appearing this way. I've already tried recaculating normals / flipping them for the eye but this has not worked. any suggestions?
1
vote
0answers
290 views

How to change grease pencil texture Blender 2.8

So I've been looking around and I can't find anywhere on how to change the look of grease pencil strokes to make custom brushes. All I could find was this link https://code.blender.org/2018/07/grease-...
1
vote
0answers
45 views

Cycles Line style node editor keyframe or driver not working

I'm using blender 2.79b in cycles. I can see freestyle after rendering and manage freestyle line set and freestyle line style by the render layers tab. When I activate "Use node" in node editor + line ...
1
vote
0answers
77 views

animation nodes error: node editor red outline and render error

im trying to use animation nodes addon. here is an image of my nodes. I am trying to make the animation nodes control the colour of the cube but when I eye-drop the cube i get a red outline around my ...
1
vote
0answers
296 views

Emission light in shader node - Blender 2.8B

In render preview, the item seems to work. But when hitting F12 to render, the particles are black and no emission is on picture for the particles. on rendering output
1
vote
0answers
55 views

Scale texture (by Math Power node)

I experimented a bit with vector math and got this texture. It is compressed at the top and stretched below. How can I get the opposite effect? I did so, but I do not think that is the right way.
1
vote
1answer
76 views

Trying to Bake Texture But it's Black

So first I'd like to say I'm still a complete wreck at Blender, I'm self taught, which a lot of people are; but I might be making a stupid mistake, though for the life of me I can't figure out what it ...
1
vote
1answer
278 views

Paralax mapping in Cycles

So I have some textures from a minecraft resource pack: One normal map: And one Specular and parallax map, I think: Do you guys know what could be the right node setup tp make this work? My current ...
1
vote
0answers
28 views

Timing with animations in the node editor

Could someone please tell me how to change the timing on composite animations? I'm making a mask from one video and putting it onto another video, but I want the mask to start partway through the ...
1
vote
0answers
398 views

How to copy nodes and their links from one node tree/material to another - in python?

I'm trying to copy nodes from one node tree/material to another, in python. As far as I can tell there is no good way to do this. I have even tried context switching and then either try to use <...
1
vote
0answers
235 views

Upscaling and sharpening 1080p image sequence to 4k in node editor?

Hi I need to upscale 1080p .exr image sequence to 4k. I also want to apply a sharpen effect to it like: -filter "unsharp=lx=7:ly=7" Or whatever blender can offer I ...
1
vote
0answers
58 views

Is it possible to use a .tga texture file and a mix shader in the node editor?

What I'm trying to do is render this ball from a video game as gold, with the .tga layer very faint on the top. How would I go about doing this? In the node control panel, when I click "use nodes", ...
1
vote
0answers
83 views

Use texture + color ramp to set density vertex group for particle system

I created a landscape of diffuse shaders, e.g. for meadow and rock and combine them with a Noise Texture + ...
1
vote
0answers
83 views

Why could a material look different in rendered result and in viewport Rendered shading mode?

This is my first node group and I can't figure out why the material showing up in the viewport looks different than what is rendering. Please, can someone help? Rendered material: Viewport material: ...
1
vote
0answers
178 views

Custom compositor node - connecting input to output

I am trying to make this simple node group that would simply connect the input to the output so it would simply repeat an image like below. What is the problem with my code? It's like nothing is ...
1
vote
0answers
278 views

I want to make the wax material used in the intro to daredevil

so im looking to make a melting wax material, I figured out the wax part. but not the waves and the dark wax drips in it. i would love to find out how to animate it as well. I tried the wave node but ...
1
vote
0answers
127 views

Checking for node tree update

I would like to check if a cycles material has been updated since the last check. The easiest way to do that would probably be to store the nodetree somewhere and check against the current node tree. ...
1
vote
1answer
86 views

How do I get specular and bump maps or normal maps to work with a texture that has a transparent background?

I am trying to build a polygon wig for a character. I want it to be realistic not low poly this is not for a game. I made a hair image and made the background transparent because I wanted to have an ...
1
vote
0answers
185 views

Bump/Normal map leaving ridges?

Recently I’ve noticed something off with my bump/Normal maps. More specifically how they’re rendered out. I end up with these weird ridges as shown below. It was like this in Blender v2.79, so I know ...
1
vote
0answers
476 views

Art style & how to do it in cycles

So I’ve been working with blender cycles a bit & I have very limited knowledge of how to do different styles. I was wondering if anyone could help me out in any way. (Note: I do not own these ...
1
vote
0answers
78 views

How to sample Image A with coordinates from image B, using compositing editor nodes?

I need an operation, mathematically written as ImgOut[x,y] = A[ B[x,y].red , B[x,y].green ] Is it possible to implement this with blender compositing editor nodes?...
1
vote
0answers
45 views

Is it possible to use object position as input for texture in composite nodes?

I was trying things out in composite nodes and was wondering if it's possible to use an empty as the control for offset of a texture in composite nodes. I couldn't find another node that could ...
1
vote
0answers
188 views

Node editor help: Using textures as shadows

I like NPR renders that use painted on textures like in this project by Gregory Khodyrev (preview below) The only issue is that the shadows are normally painted on as well so they aren't very ...