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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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6
votes
0answers
110 views

Copy scene node tree to other scenes

I have a Blender file wih many scenes and I want to copy the node tree of one of them to the other scenes. From Blender interface it is a very simple task, in python I have tried using bpy.ops.node....
6
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4answers
801 views

How do I color the shading of a material?

Some art styles increase the saturation in their shading, I'm trying to achieve this effect as seen in cell #2 of my example image. Right now it looks like cell #3, which lacks this and looks dull in ...
5
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233 views

Update function for NodeSocket?

How do I set a callback for socket input change (value or link change) when having a custom node? I have a socket defined like: ...
5
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1answer
2k views

How do I make an object look wet?

So I started a project and it mainly revolves around a manhole and a street, and it's raining, but I can't get the manhole to look wet. One thing I tried was to mix 2 noise textures (one with a low ...
4
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0answers
124 views

Is is possible to get boids data to animation nodes signalling when they are 'attacking'?

I am creating a space dogfighting scene and I have been able to hook up the particle boids to animation node instances, including positions and even the rotations by normalizing the velocity and ...
4
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0answers
2k views

nVidia skin shader with the Principled BSDF

I've been using a skin shader primarily based on the Brecht skin shader, which is itself based on the Sum-of-Gaussians approach as seen in 14.4.7 from GPU Gems by nVidia. Its Cycles adaptation, which ...
4
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0answers
610 views

nodes in blender game engine

I have an issue while tring to set up a material for blender game engine. You can see the setup on the image, and the BGE doesn't render my purple object that's on the View panel.
4
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0answers
618 views

How can I use a node-based texture for smoke flow in Cycles?

Preface: I'm thinking that this might be a bug, because the behavior's pretty weird. I'm posting it here in case it is the intended behavior and there's some trick I should use. I can successfully ...
3
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0answers
43 views

texture mapping without texture being mirrored on other side of object

I have a cylinder I want to map a texture to. To specify the location of the texture I use an empty. In the material node editor I then use the object function of the texture coordinate node and ...
3
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0answers
66 views

Is there a way to get a node's dimensions without displaying it in the Node Editor?

The aim of the question is to calculate a node tree layout for a generated node tree. Nodes have height, width and ...
3
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0answers
95 views

Irregular shapes texture

Below is the type of texture I wish to generate using Blender's node system. Thus far, I have tried using a mixture of Blender's base textures, noise, magic, voronoi etc. I have attempted to combine ...
3
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0answers
19 views

Gradient texture loses effects in linked smoke simulation group

I have created a smoke simulation with the following node-setup as the material. The three nodes on the far left allow the lump in the center of the smoke simulation to lose their density. The ...
3
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0answers
37 views

Node Group separator for parameters

Is there any way to add separators to better organize node group parameters?
3
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0answers
65 views

How do I curve procedurally generated textures (Clouds)?

I'm quite new to blender and am still getting the hang of things. Having followed BlenderMaster's tutorial on creating clouds, I've managed to create something like this: I already know how to move ...
3
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0answers
83 views

Compositor File Output Node overwrite?

In the Output tab of Render settings, you can set the output options for rendered animation. One of the options is to have new renders overwrite the previous ones or not. The File Output node in the ...
3
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0answers
159 views

Rendering to Viewer Node in headless mode

I'm running Blender 2.79: /path/to/blender -b empty.blend -P script.py With script.py: ...
3
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0answers
195 views

Nodegroup: Missing data block

A Cycles node group in a file of mine seems to have lost its data block somehow. The group still shows its inputs and outputs properly, but the name of it has changed to Missing Data-Block, and no ...
3
votes
0answers
56 views

How do I find which materials are using a particular node group

I have a blend file that I am using as a materials library. I have discovered that there are node groups that were not named, so I have a collection of NodeGroup.xxx groups. I would like to find the ...
3
votes
1answer
124 views

Help figure out where this phantom rust is coming from

I have an object with two non intersecting UV Maps. One UV Map (round.red.light.decal) is to place a red light decal (round.red.light.png). The other UV Map (rust.map) was used to draw an image mask ...
3
votes
0answers
101 views

How to control materials falloff type from perpendicular/parallel to fresnel using nodes?

I used to create falloff maps in 3dsmax quickly and easy. Now I would like to be able to do the same thing in blender. Currently I am using Toggle diffuse ramp operation in blender, but it only ...
3
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0answers
312 views

black displacement artifacts using micro-displacement and adaptive subdivision

I am currently using micro-displacement along side with adaptive subdivision. However I have stumble upon a weird artifact. As you can see there are some black pixelated artifacts along side the ...
3
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0answers
155 views

Scripting an “open image” button input for image/env. textures?

Is there a way to script out a normal image/environment texture node with the exception of an "open image" button input that can be plugged into a node group and have that button actually be displayed ...
3
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0answers
621 views

How to create topographical contour lines ?

I am working on engraved cave walls, got from 3D scan. I would like to create topographical contour lines (maybe not "lines" but "ranges" ...) in order to see better the engravings. I have already ...
3
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1answer
829 views

How to update compositing nodes via script?

I create some nodes in compositing via python script: ...
3
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0answers
63 views

Defcous Node algorithm

I am working with Blender to generate defocus images using the Defocus filter it provides in the Node Editor. The official doc says that the blurring is done as a "post-process" using the Z values in ...
3
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0answers
576 views

Using data with python nodes

I have created a number of python nodes inside my own tree. I have one node that takes one input and has a button called "Simulate". This is an operator that is held in another file. Currently all it ...
3
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0answers
110 views

How can I use a mask in World Textures

I have a cycles world setup with 2 textures rendering out as equilateral (for 360 deg video). I would like to use either a mask shape or an object from the filed of view as a mask between the 2 ...
3
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0answers
2k views

How to create an all-around night sky in Cycles?

So I created a night sky following this video https://youtu.be/9vbq6HOgA2w It was going pretty well until I noticed that only half of the world actually looks decent. The bottom half/ middle is this ...
3
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0answers
182 views

The problem of distortion on the composite

Hi all, I have a problem. I will render an object, is simply a box, get the rendering, compositing, then distort it. As a result of rendering over a live video the cube is smaller and renders with a ...
3
votes
0answers
592 views

Copy node tree from one material to another in cycles using python

I have two cycles materials (say source and target). I want to copy the Shader Nodetree from the source material to the target material after clearing any currently present node tree(s) in the target ...
3
votes
0answers
69 views

How to create an image whose alpha value changes according to a curve through time in node-editor?

I connected an image-node with a composite-node and connected a value-node into the alpha of the composite-node. I changed the values and the image changed its transparency. Then, I connected the ...
3
votes
0answers
104 views

Is there a way to get the vector to the closest UV seam?

I am looking for a way to get the distance to the closest UV map seam in UV-space as a vector in the node editor. Like this: The blue dot is the current point of reference, i.e. the point where the ...
3
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0answers
330 views

Use value of node output for driver

Situation: I have an Object that rotates (keyframed). I use Nodes and Drivers to set the objects color to blue within the first quarter of one whole rotation (90°) and red for the rest (270°). That is ...
3
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0answers
3k views

How to make procedural wood material with knots?

Recently I saw new cycles wood shader from CG Cookie, that looks very impressive and I was wondering if it is possible somehow to mix few wave textures to achieve natural looking knots on the wood. ...
3
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0answers
450 views

OSL: Giving the texture method a color instead of string

Is there a way to give the OSL method texture(string, float, float, ...) a color input instead of the string which reads an image file? Or is there any type of ...
2
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0answers
60 views

How to create more realistic shadows?

Obligatory disclaimer: This is my first post on blender.stackexchange so forgive me if my post isn't on par with what's usually asked here. Explanation: I'm running v.2.80 of Blender currently and ...
2
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0answers
47 views

Brushed Nickel in Blender

I am trying and failing to create brushed nickel in blender. The texture of the object is smooth and the brushed appearance doesn't add any bump to the metal. See the attached pictures for the look I ...
2
votes
1answer
23 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 ...
2
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0answers
36 views

How can I sharpen the light fall off for a rotating earth animation with 2 materials?

Intermediate level question. I have been following Andrew Price's excellent tutorial on "How to make Earth". I have managed to "create" earth, and render as a static image. I have returned to this ...
2
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0answers
46 views

Suspended glitter in clear material

I've been hunting for a bit with no real results for a material that looks like glitter cast in resin or clear nail polish with glitter floating inside of it. There's plenty of results for solid ...
2
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0answers
82 views

Python Mix Shader Diffuse BSDF Glossy BSDF Nodes

I am trying to create a plane object in python that uses a mix shader with the first shader being a Diffuse BSDF Shader, color black, roughness 0.200 and the second shader being a Glossy BSDF shader, ...
2
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0answers
58 views

Welded Iron bronze/silver material?

Ive made an exhaust manifold with welds in cycles, Im trying to acheieve a realistic material where the welds are a rusted bronze like in the image attached. How would I go about getting this result?
2
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0answers
37 views

Lifetime Color Change Material + Time Remapping = Problem (Cycles Animation)

I am posting because I've been working on a problem all day and I can' t find the right solution anywhere. I'm going crazy. :P My situation: I have an animated scene in 24 fps I want to release the ...
2
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0answers
111 views

Blender 2.80 displacement texture bug(?)

I thought I better seek help from others to make sure I'm not making a user error here before placing a bug report. In using greyscale displacement maps (textures) in blender 2.80 I've noticed ...
2
votes
1answer
167 views

How Do i add colour to this image texture?

I think i have bumped it correctly? I now want to add colour so that the planet looks nice. Also I am having trouble with the image texture after unwrapping and scaling in the uv image editor- not ...
2
votes
0answers
83 views

Cycles Nodes - object location in another object's space?

The Object Info node gives me access to the location of the shaded object('s origin) in World Space The Texture Coordinate node gives me access to the coordinates of the shading point in the Object ...
2
votes
1answer
88 views

How to combine transparent environments with alpha masks?

So there's this Toei anime from 2003 called Air Master and it had a very unique outro in which the main cast would sprint through their hometown. I'm fairly confident that it's environment CG, given ...
2
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0answers
68 views

How can I make a paint-covered material in Blender?

So I'm struggling with the wheel rim's surface material and this is what I've done: The nodes: (PBR material from Remington Graphics) The real stuff: (For more references check this out) So I'd ...
2
votes
0answers
51 views

Cycles : how can I setup a glass material that doesn't become too dark when it is stacked?

I'm working on a picture where I need to stack layers of glass (the floors of a building). The glass materials are tinted. The goal is that you could read cleary and distinctly the color of each ...
2
votes
0answers
30 views

How to get gradient material to work with rig?

I've got a lil character i'm making that uses some gradient materials, but I don't know how to make the gradient move with the deformations. as you can see, the gradient doesn't move with the ...