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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1answer
2k 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 ...
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Volumetric Shading in Cycles

I understand that there is no proper way of doing volumetric shading in cycles yet, but I'm curious to know if there is a way to fake it. Effects such as clouds or fire.
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1answer
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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?
8
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1answer
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Scale Texture with a Value-/Math-Node

in my node setup I have a value node. I want this node to influence the scaling of my mapping node. Is there a way to achieve this? Or is there a math/vector node setup I can use to manipulate the ...
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1answer
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how does the color ramp interpolation work?

how does the interpolation of the color ramp node in cycle affect the behaviour of the color ramp. During modelling the interpolation meant the shape of the curve, but while using node it must be ...
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2answers
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How to introspectively modify nodes from Python

Ok, this is quite a weird case. TL;DR Why (and how is it Pythonically possible that) Blender's nodes dont have the __dict__ attribute. How to programatically add ...
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3answers
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How to start a Time Node?

my goal: This is my first compositing attempt in Blender, my goal is to create an animation shown in the render window, the animation is a simple shift from one colour to another within about 100 ...
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3answers
764 views

Voronoi map in the compositor

I just saw this on codegolf and thought it would be an increadibly cool application of the Blender compositor for NPR. Perhaps coupled with a blur shader this could make a nice painterly effect. Is ...
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2answers
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Controlling ColorRamp nodes with Group Inputs

Is there a way to control parts of a node (that doesn't have inputs) with Group Input nodes?
8
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1answer
416 views

Generate a random square texture from color input

I have defined a color palette using the ColorRamp node, and I would like to generate a random texture with those colors. What is the best way of doing this? I'm new to blender, so please explain like ...
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1answer
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What is the Alpha Convert node used for?

What is the Alpha Convert node used for? I've never seen any tutorials on it. Also, if there are several good uses for it, examples would be great!
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2answers
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how to get a mask that only contains the inside of a bowl

I am trying to texture a bowl (procedurally) and I want a part of a texture to only work on the inside walls of the bowl and vise versa I tried using the back facing option in the geometry node but ...
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2answers
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Modify light range with nodes

I can make a light not illuminate things further away than a set distance, using the attached node setup. Is there a way to refine this setup so that the light intensity can be controlled between the ...
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2answers
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Using a mapping node to disable tiling is streaching texture?

I'm having a bit of an issue getting started with UV mapping in Cycles. It works fine initially, but when I add the mapping node and set min/max to the default values to turn off repeating, I get the ...
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3answers
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Light path Transparent/Diffuse Depth

I'm working on a cycles shader that requires thickness information, and by that I mean interaction between the mesh with the shader itself and other objects inside it, in a way that as closer a ...
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3answers
872 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 ...
8
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1answer
706 views

How does fac differ with manual control versus node control?

If I mix two shaders together, like the diffuse and glossy shaders, I understand that I can change the factor slider between 0 - 1. and that having 0.5 factor will show a 50% mix of blue diffuse and ...
8
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1answer
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Procedural carbon fiber material

After several failed attempts to create a procedural carbon fiber material, I decided to look around for tutorials, only to find that the majority require the use of textures. The only promising ...
8
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1answer
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how to mix procedural textures for a natural waves of sand displacement effect?

I want to achieve a nice wave procedural texture in order to get a realistic sand displacement effect. here is my current set up but I want to waves mix more randomly in order to give brunchy like ...
8
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2answers
2k 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 ...
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2answers
1k views

How to match material properties to physical reality?

I'm trying to make a realistic gold shader. I would like to know what is the right way to match the information found on refractiveindex.info (for gold: http://refractiveindex.info/?shelf=3d&book=...
8
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1answer
276 views

Shadow from camera vs shadow from reflection

Is it possible to distinguish between shadows viewed directly from the camera, and shadows seen in the reflection of an object? For example, the shadows circled here: From the cameras's perspective, ...
8
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1answer
597 views

Recreating the line detail in shadows from The Wolf Among Us in blender?

This is my first year of using blender so I don't have a lot of experience in blender at all. I'm trying to recreate an effect that Telltale used in The Wolf Among Us for my short film. I don't ...
8
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1answer
378 views

How can I transfer a collection of float values to a node socket​​?

How can I transfer a collection of float values to a node socket​​? This is what I've tried: Create a list of float values ​​and convert each of them to a string Pass the string to the socket In the ...
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3answers
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Repeat a generated texture in Cycles?

What is the way to multiply a texture across one axis? Lets assume that I have a plane. How can I multiply the "Gradient" texture in the node editor (Shift A > Textures > Gradient) several times ...
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2answers
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How do I make a pulsating light effect material?

I wanna make a material or animation that can do something similar to this video on multiple different points on a surface. But with different speeds and distortions. https://www.youtube.com/watch?v=...
7
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1answer
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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
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2answers
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Rendering sharp shadow on cycle rendering

I would generate a clear shadow projected on a floor. I am wondering what is the essential node used to achieve this. I am using these nodes and I get this image, I remark that the shadow is ...
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3answers
5k views

Shader: Rounded edge between the two intersecting faces?

Is there way to do "Rounded Edge Width" in Blender? It's familiar for me from Modo. Anyone know the trick? Like Modo's Rounded Edge Width. Couple links for reference: From the modo documentation: ...
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2answers
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Convert cycles closure (shader) output to colors?

Is it possible to convert the output of a cycles Shader node to colors? For example to use an ambient occlusion shader output to multiply or darken act as a mix factor between other shaders?
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2answers
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How to remove one of the group inputs

I'm using Blender 2.74 and trying to follow an online video tutorial on creating "sun" (presenter is using version 2.63). The problem I'm facing is that the presenter just selected a few nodes in the ...
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2answers
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Make transparent object not layer up itself

I want to make object transparent, but the object itself should not be visible through itself. It's in an animation that rotates it, but at a certain angle I can see parts of the object through other ...
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2answers
619 views

Show banding on object

I'd like to emphasisze the '3d-ness' of my object, by applying a rectangular mesh to it, as if it were a white object in a black room illuminated only by a (far away) laser that scans horizontal and ...
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4answers
3k views

Make Object emit light & be reconizable

i want an object to emit light, but still be recognizable as the object, like in this picture. i tried using Luts in the colour management and tried to make only a second, weaker emitter be visible ...
7
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2answers
491 views

Creating the look of “object ” mode

I would like to create a look for my model that is similar to the material of models in Blender "object"/"sculpt" mode. I have tried using Glossy and Diffuse nodes to make "plastic" and "rubber" (...
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2answers
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How can I use colours to separate texture node treatment?

I'd like to do three things: Make the Red area glossy Make the Green area roughly diffuse Make the Green area appear higher than/on top of the red area (bump height). Basically I'm looking for a ...
7
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3answers
12k views

How to use normal maps with nodes in Blender Internal?

In the file attached I have created 2 cubes: Cube A (with regular - non-node-based material with normal map) and Cube B (which tries to use same normal map but with node set up). I want to achieve ...
7
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1answer
11k views

Learning cycles material nodes

I'm not a beginner to 3d. However, the node editor seems confusing when creating materials. I like the way I can make materials in c4d. My question is simple. What is the difference let's say ...
7
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1answer
512 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 ...
7
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2answers
600 views

Sine wave on the environment texture

I am trying to create a Sine wave that goes around the environment texture (something like what is shown in the attached image) I have tried to mess up around with the math nodes. So far I am trying ...
7
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1answer
1k views

Why is the cube visible even though there are no lights?

If I use the Cycles rendering engine, leave the default Cube, delete the default lamp, set the diffuse color of the cube to some color, why will the cube without any lamps still render visible? Does ...
7
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2answers
10k 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, ...
7
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1answer
2k views

How to mask animated objects so they aren't visible past a certain area?

I am animating objects that will be rendered with video footage in the compositor. My difficulty is how to apply a mask so that the objects disappear when they expand past a certain point. Objects ...
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2answers
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Can I add the output of the VSE as input to the node diagram?

I know how to add the output of node composition to the VSE (add 'Scene'), but can I do the oposite? I want to post-process my video sequence with a filter only available as a node (Stabilize) ...
7
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2answers
1k views

Brick texture with multiple colors

Using the Brick texture is it possible to have more than 2 solid colored bricks unmixed with the bias? I have been putting a color ramp on the output of the texture node, at constant to get 2 colors. ...
7
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2answers
6k views

Where is the Displacement node in Blender?

I know how to achieve displacement in Blender, but lately I read Blender documentation and found this page: https://docs.blender.org/manual/en/dev/render/cycles/materials/displacement.html. My ...
7
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1answer
4k views

How to create procedurally generated surface bubbles on a liquid

I am trying to procedurally generated surface bubbles on coffee. I know that you can use a UV map to do this, but I'd like to have more control. There is a nice demo of doing this with animation is ...
7
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2answers
7k views

How to use the current file name as the the output name in the File Output Node and without the frame number at the end?

Two questions: How to use the name of the currently opened blendfile automatically in the File Path field of the File Output Node without entering it manually? How to remove the frame number which is ...
7
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2answers
372 views

How do I make spikes show wherever you would see solidify lines with flipped normals?

Using Cycles, for a cartoony animation character I need spikes to be seen only from the character's edges and behind the character but never seen in facing angles. I want to avoid having to render the ...

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