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.

913 questions with no upvoted or accepted answers
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361 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 ...
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1answer
963 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 ...
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1answer
160 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 ...
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89 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 ...
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51 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 ...
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0answers
58 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 ...
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39 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 ...
2
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1answer
89 views

Clip depth field of view in nodes

I am a beginner in Blender. This is what I do to save the depth: I can get the real Z in meter from the camera to the object. But how to simulate the field of view ...
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107 views

How to drive the color in node editor by the color of the light?

I want to control the color in the node editor by light color. After trying it myself, I guess I should probably get the RNA properties and enter it in the driver editor in the correct way. I ...
2
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1answer
158 views

How to translate plane coordinates x,y to equirectangular?

I have a procedural texture with a circle made by formula X ** 2 + Y ** 2 < R ** 2. It looks like a circle on a plane. But if I try to use this formula in the World environment - the circle is ...
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116 views

The correct Node workflow?

I stumbled upon this link which depicts the workflow for creating materials in Houdini. Material Studies: Metals How would you approach this workflow in Blender ? Thanks!
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185 views

can I use vertex alpha to blend 2 textures?

I'm currently using the newest build of Blander 2.79 which has the vertex alpha support. Is there any way to use the vertex alpha to blend between 2 textures? I have this node set up, but the ...
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216 views

Turning Point Cloud with vertex color and normal data into a Mesh using nodes?

Not quite sure if this is a too big of a question to answer using Sverchok, but I will ask anyway: if we have Point Cloud data, each point has Color info and Normal info, how hard it is to turn it ...
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95 views

Is there a way to duplicate a material node with it's keyframes?

I also tried by making a group of nodes and duplicating the group, but if I undo the groups, only one of them keeps the keyframes.
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143 views

How to change the active node tree data block using python?

I'm using animation nodes add-on. How can I switch between the node tree data blocks using python (as shown in the picture below)?
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276 views

How to drive the Scale and Position of the Mapping Node to the value of other Nodes?

I want to drive the scale and position respectively by the value of other nodes. So say I have to use the value of the green nodes in the second image to control the scale of the Mapping Node and the ...
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232 views

How can I create a cycles node setup for this black hole

so I am making a black hole in blender. I am "following" a tutorial for it, but it isn't exactly made for blender, but lightwave 3d. Now I am trying to create an innersteller like black hole, with the ...
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0answers
111 views

Let wireframe node only show edges where normal changes

I am mixing a diffuse shader and a transparent shader in a cycles matrial. As factor input for the mix shader node I use the output of a wireframe node. So the wireframe node will output 1 where an ...
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0answers
40 views

Cycles 2.79 Need reflect and refract output

Blender Render allowed reflection and refraction as distinct output nodes for renders: I am working with an FX firm that is asking for the same sort of output from my Cycles render, plus specularity. ...
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0answers
108 views

Blender(cycles) fails to render correct values in some pixels. Fails to hit correct triangle. Why? And how to avoid this problem?

I do some rendering in blender(cycles). I render with the help of cycles nodes .exr images, where in each pixel instead of rgba-channels I store xyzObjectIndex-channels. Everything works fine up to ...
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24 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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0answers
108 views

Color ramp gradient 'flattened out'

I'm experimenting with some procedural ways to create dunes, but I'm experiencing some issues with the color ramp. I want the top to be (close to) pefeclty sharp, but right now it is sort of beveled. ...
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113 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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611 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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586 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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952 views

How to make low poly water with foam effect?

There is a very cool foam effect rising on the shore in this low poly water asset made in Unity: And here: Is it possible to create a similar effect in Blender? I have the water material down, I ...
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82 views

Shadow very suppressed in compositor when goes against background

For some reason my render in the compositor is all weird. Here's the problem: the background is not completely white and the shadows get suppressed. If I render everything without the background ...
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0answers
263 views

Simulate light bending due to gravity

I'm trying to demonstrate light bending due to gravity, but my knowledge of Blender isn't up to the job. As a test I have a sphere with the Glassy BSDF shader. The colour is set to white, and I've ...
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0answers
82 views

Can all images be reloaded at once with the node wrangler?

I have multiple textures that are used across many objects. Some of them are being revised along the process by previewing them in preview render. I want to know when using the shortcut Alt+R does it ...
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0answers
375 views

Using Python to add driver to cycles material node properly

I've been working with an audio-driven animation and discovered that you cannot apply a driver directly to an input field on a material node. Rather you need to navigate through the Datablock to the ...
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401 views

Proxy linked material

I am linking a large scene into another file. The scene consists of lots of objects and lights. All of the lights use the same material group, but it has a different output for each light. This lets ...
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0answers
51 views

The Image textures on nodes and the UV texture of UV image editor are not showing

I followed this tutorial of how to make a realistic eye. Everything was fine; I saved the file and then went to sleep, the next day... BOOM, the textures were gone, and when I check on the nodes I ...
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0answers
535 views

Using the output of the shader as a masking factor in the cycles?

I use the output of the material(shader) as a masking factor in the Blender Internal renderer. I tried to do the same in Cycles but it didn't work. Is it possible to use only texture or input nodes ...
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0answers
366 views

Controlling Node Based Displacement

Hey I'm making a model that uses the experimental microdisplacement to make bumps on my mesh, but I only want the bumps to be in certain parts of the mesh. Is there some way to use vertex groups or ...
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0answers
585 views

Compositor output as texture in Cycles material? Better in realtime?

If there any way to use Node Compositor output result as texture or image in Cycles material/shader? Better in realtime? Or use Compositor nodes in Material Node Editor? May be any Addon to automate ...
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0answers
313 views

how do I make a realistic moon on a day sky in cycles?

I had a node setup as shown in the picture. although I still have to plug in the bump and diffuse maps, I wanted to see the effect that the darker side of the moon is not black but the color of the ...
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0answers
355 views

How to add a checkbox to a nodegroup

I am making a nodegroup and in it I have an option to invert the texture but it's a slider from 1-0 and you would only even need it to be either 1 or 0 so I was wondering if there was a way of adding ...
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208 views

materials different between render and viewport cycles

Right now I have a scene set up with two emmission shaders on two planes. In the viewport render I get this image But whenever I render it, I get this The viewport render is as desired but the final ...
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0answers
58 views

Motionblur on Cornerpin node?

after writing a script to import cornerpin data from Nuke, I just realized that there is no motion blur. Is there a way to turn it on, or is it just not supported? Thanks
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0answers
73 views

Mapping problem between 2.78a and 2.78b

I use spot lamp as projector with concentric circles. (mapping wave texture, normal coordinates, rotation via driver) The same scene give wrong results with blender 2.78b 2.78a is good Is it some new ...
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0answers
77 views

Texture Coordinate from object in linked material

I have an object that is being linked into a new file (Object A). Object A has a material that uses the Texture Coordinate node, and uses the coordinates of a separate object in the same base file (...
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0answers
188 views

Limit object info node random behaviour?

I ran into a problem with the random node, I'm hoping I can find an answer too. Does any body know if it is possible to have the "object info> random" node not effect stacks of objects? so it would ...
2
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0answers
138 views

Combining OpenGL and Blender Render (For Lightsabers)

I'm working on another lightsaber video. For the clashes this time, I've decided to utilize a lens flare pack by cfirwin3 here and it's super awesome. However, it appears that they only render ...
2
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0answers
524 views

Add a drop-down menu in a NodeGroup

I personally really like NodeGroups. However, I would really like to be able to add a drop-down menu in a NodeGroup, like a normal shader node. I know this is possible with Python, but I'm not really ...
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0answers
908 views

Why OSL script is not showing the result?

I tried to copy the source of the Separate RGB shader but not getting the same result as the original Separate RGB node. Top Left: A copy of Separate RGB source taken from blender repo. Top Right: ...
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0answers
447 views

How can I create a milky, smooth, transluscent plastic material with nodes?

I have been searching around for quite a while now. How to create a plastic material which absorbs light with properties of having a volume absorption node;is shiny on the surface (glossy) and is a ...
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0answers
275 views

Custom Python Nodes: Calling Group Node

I am writing a custom shader node that essentially "Calls" a predefined group node into the code. Here is the group node I am looking to call: I am using the "CustomNode" template that is packaged ...
2
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1answer
2k views

How to set specular intensity and hardness in Blender Internal nodes

I am learning how to build shaders out of nodes in Blender Internal and I am confused about setting specular intensity and hardness. Obviously I can just set set the intensity and hardness in the ...
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0answers
79 views

What's the difference between this two “default” material setups?

I watched a tutorial video that shows how to do bump mapping. I have tried to do what I saw in the video, but I found some a difference in new material creation. When I press create a new material I ...
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0answers
104 views

Is it possible to determine emission shader value by other lights?

Is it possible to take a lamp/sun/point light and use it as a value on the scene to tell materials that are not affected by the light source to emit their own light? This is photoshopped example of ...

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