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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38 views

Can you set a variable in the node editor to check if a light source is hitting a normal?

Can you set a variable in the node editor to check if a light source is hitting a normal and then take the information of which normal are being hit and which ones aren't to change the material? For ...
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1k views

Would it be possible to create a wood/metal texture only using nodes, not texture images?

I am looking for a creative way to get around loading texture map files to create materials that look like wood/metal. Basically, I wonder if it would be possible to connect the material/texture nodes ...
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38 views

Texture masking problem, wall becomes transparent under cracks?

Hi I want to make a texture combining a plaster texture with an alpha-masked cracks/weathering texture. It works if I mix them but I don't want the cracks to be everywhere so I added a pointiness node ...
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798 views

How to make eye shader?

I am trying to create a sonic model and I would like to know if anyone could help me replicate the eye material shown below. So far i’ve Tried using some glass shaders mixed with some diffuse shaders.
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69 views

Cycles transparent node brighter texture color in blender 2.79

Blender 2.79 alpha transparent part brighter color. Blender 2.78 work fine no problem. Material simple alpha is black and white vertex color. Any idea on how to fix this?
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34 views

Is it worth swapping to a faster shader for non-camera rays?

The old trick of using 'Light Path > Is Camera Ray' as the factor for a mix between the shader seen by the camera and a simpler 'fake' shader that is never directly seen (except maybe in reflections). ...
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41 views

difference of uv mapping between viewpoint and render

In the view point, roof's pattern is straight line. but in the render, roof's pattern is diagonal line. why this problem happen?
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44 views

Prevent World from coloring Glass

I have a scene with some glass windows that show through to the World background. For now, the world is just a flat color. But in post, a different background will be photoshopped in. So I need the ...
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38 views

cant change the texture of a model

sorry if this was asked before i have not seen it. feel free to link me if it is somehwere here. my problem is that suddenly i can not change a texture for one model anymore. when i entered the file ...
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100 views

How to make the background of rendered depth image black?

So I am trying to render color and depth image at the same time. The color image for the scene is: As you can see, the background of this image is purely black. I want to have black background as ...
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37 views

Define died after collision particles via Particle Info node

Usual "death" means Age/Lifetime ratio is 1. This is simple to define with corresponding outputs of Particle Info node, but how to deal with particles killed by collision? Maybe some math involving ...
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2k views

Metallic and Smoothness Map

I have a metallic and smoothness map. The metallic is in the red channel, the smoothness is in the alpha channel. (This map is used in a Unity 3D project, by the Standard shader). The values in the ...
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177 views

New to blender; fire + smoke not rendering

Being new to Blender (version 2.79), I've tried to do the Bezier curve tutorial. Along the way, I wanted to add some smoke and fire effects to the sphere / ball in the middle of the figure. While ...
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166 views

I'm having trouble baking material colors into a image texture (faces with wrong colors)

I'm currently doing a project where I convert Voxel models into a model I can export into another format. I've gotten pretty far, but I've reached a wall. First, here's a screen of my model. Each ...
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111 views

what does context mean in blender

"In compositing and texture context each node supports the Alpha channel. In the texture context only RGB color space is available. In the shading context of the Blender internal adds HSV and the ...
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39 views

How do the histogram and number of colors in the texture affect a displacement map?

I've been working on a displacement map texture of the Moon taken from NASA data. When the step of resizing the original image down to 65536 x 32768 was done, many new shades of gray were added. As a ...
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126 views

Help adding color to an image texture

I have done much texturing so bare with me... Im making a car and wanted to texture the brake lights with an image like this (pic 1). I don't want to project the image, I want to use this as an ...
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60 views

Node Editor not having any affect on the selected / assigned object or showing in Preview

I used the Node Editor to make alterations to a material however they are not showing at all. There seems to be a disconnect. I am sure I have done something silly as usual but cant for the life of me ...
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90 views

View or export data from Nodes (eg Voronoi texture node)

I have the following nodes on Suzanne (see image) and I would like to see what data "Voronoi Texture"-node spits out on "Fac" output. I would like to see it in numbers. A vector, a matrix, or ...
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452 views

How could I make a rocket exhaust with a smoke / fire simulation?

How would I be able to make an accurate rocket engine exhaust effect in blender? I hav the model done, but I would like to make this effect better.. Here's my model and here's some examples of the ...
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85 views

Defocus Node acting weird with blurred foreground. Fix?

I'm working on an animation, and in this particular scene, I have a close up of a naval gun turret. I wanted to focus on the middle gun, but the defocus node gives me trouble. In the image below, I ...
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53 views

How to improve the Annoying Orange effect?

I'm working on a project that is using the annoying orange technique. It works fine but the mouth is surrounded by that shadow. I know it due to the feather of the mask I'm using. Do you guys have ...
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173 views

Why Cycles baking makes artifact lines to the texture?

For some reason when I bake diffuse color out from Blender, I get to my baked texture strange long lines and I was not able to find anyone else having similar problems. The left one is the baked ...
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408 views

How to set up a realistic dry grass (hay) shader?

So this is the node setup: I have been following the Grass Field tutorial by Gleb Alexandrov, found here: https://www.youtube.com/watch?v=eshOzshjt90 . But I cant get the grass to look straw yellow ...
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186 views

Load different mesh on each frame of an animation

I have several hundred meshes which describe a constantly changing surface like waves in the ocean. The amount of data in the meshes is so large, it will not fit in a single blender file. I could ...
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1k views

How can I make a realistic water material in cycles?

I have read a lot of posts about water in this forum but none of them seem to be what I am looking for, except this one: How can I create a water material in Cycles?: Every time I try to re-make it ...
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31 views

Normal maps in node editor cause a blue/black tinge

So, I'm guessing this ties into the Vertex paint? I created a mix shader node with two principled shaders, skinlike ya know? One being more red/pink than the other. ANYWAYS. I created a Col attribute ...
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227 views

Make cracks in crystal

I want to make the rainbow cracks that are in the crystal on the picture below. The crystal is not hard to make. The cracks is harder. I tried with Cell Fracture and Cell Fracture Crack It but the ...
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189 views

Reflection from Texture Coordinate Node is stretched

I'm having a problem, or I've found a bug. I'm trying to change the reflection of an extruded cylinder (basically a drinking glass), and the output from the Texture Coordinates node is stretched. ...
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175 views

Get specific pixel from texture in material node

I have a cel-shading material with nodes in Blender Render and a texture with the diffuse colors. I want to use the empty space of the texture to specify accent colors for the material. For example, ...
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23 views

How to get ouput from existing group

i'm new from blender python scripting. i've create a group node with output, the code are same that: ...
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609 views

blur images in material nodes

I made the timbered parts for a timbered houses. In order to make them look more realistic I formed squares, subdivided them with two cuts in edit mode and then pulled the middle square outwards. To ...
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41 views

How do I paint textures without adding a material?

I am using Cycles Render and an Image Texture Node so that I can paint my texture and remove seams. However, in order to do this I have to add a material and that causes my object to be shiny, which ...
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42 views

Is it possible to get the output of a different material available as a node?

I'm building a model of a piece of swampland, and I'm hoping to use a material-blending technique I know from Unity to handle its appearance. It involves lerping between multiple other materials using ...
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163 views

Floyd–Steinberg dithering with compositor nodes

I can't get Floyd-Steinberg dithering work in compositor nodes. I know there is a dithering option inside blender, but for some artistic effects I want to do later with this effect, I need it as nodes ...
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73 views

Colour Ramps not having any effect

Could someone take a quick look at this node tree and tell me what i'm doing wrong? The colour ramps have no effect at all on the target....unless you swap the white and black around completely ..........
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59 views

Node Menu in Lamp Settings linking keyframes of multiple objects

I have a scene that has some lamps that are animated with keyframes they were each created individually and follow separate curves I was trying to save time when i decided to change the size of all 12 ...
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1answer
285 views

How to set Z transparency in Blender nodes using the Blender's Render?

The context is like this: If you are using the Blender internal (Blender Render Machine) and you are also using nodes, and want to fine tune the transparency by using the Z Transparency value how ...
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560 views

Can I create a node group with a texture input

Is it possible to create a node group that asks for a texture, along with other values? Here is a similar example of materials instead: Instead of a material, can I make it a texture input instead? ...
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54 views

Scripted NodeFrame does not attach children until nodeview is updated

This snippet can be run from Text Editor to get an idea of what I mean. ...
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85 views

Extracting data from nodes?

Similar to a question asked a few years ago about debugging math nodes, I was curious if there is anyway to dump the numerical data output from a math node to any external location that would allow ...
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1k views

Animation Node: Bake to Keyframes (convert animation)

Followed a tutorial on Animation Nodes by Jacques Lucke on Youtube the other day and tried a very basic setup. This was my very first AN test.. As I would like to render it on a renderfarm, I have to ...
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99 views

Blender Internal SSS material/node setup not working

trying out an old node setup for Blender Internal, but for some reason its not working. As far as i know, it should be working. Any suggestions will be much appreciated. (Unless it's "use Cycles").
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402 views

Custom default settings for nodes/materials

Is it possible to set custom default values for nodes? For example, if I add a math node I would like it to be set to multiply by default. In a similar trend, is it possible to have the Principled ...
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219 views

Using Mist or Depth pass to create a color-specific mist

I have a base scene with objects retreating in the distance: The background color is created in the World properties using a background color. I also have Mist and Depth passes enabled. Here is Mist:...
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103 views

Particle location more than just x/y/z coordinates?

Using the particle system, I have a certain object being used as hair on another object, with the hair object having a material that changes its colour on the base object based on the hair's position ...
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0answers
477 views

How Does Eevee Handle Shader Nodes?

I have been reading about GLSL development and the applicable portion relates to how different shaders pass data between each other. As I understand it once a shader finishes the computed color, ...
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0answers
82 views

Possible to control or limit distance of gloss and shadow how it affects other objects?

I'm creating a scene with a room and I wonder if it possible, with the help of nodes, limit the distance of an objects shadow and glossy to nearby objects or as an alternative tell object A not to ...
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54 views

group node to link and animate multiple alphas

Noob to Blender and to nodes. To animate the transparency of an object with a dozen (very simple) materials, I would like to link all the alphas with a single keyframable value. I think this is ...
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41 views

Node connections have weird black borders?

So the other day my cat walked across my keyboard and now all the connection lines for my nodes in the node editor have weird black areas around them . . . not sure what it does and would like to be ...