Questions tagged [node-editor]

Questions relating to Blenders node editor. The node editor is used for non-destructive texture and material editing; for geometry node editing and for post-processing/compositing.

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85 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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103 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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453 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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0answers
478 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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53 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
580 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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186 views

How can I change the color of clouds?

I created a scene using a bunch of clouds from the Cloud addon that comes with blender. I played around with the nodes but I cant find a way to change the color of the clouds? Also The clouds in the ...
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434 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
614 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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356 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
256 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
61 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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75 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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83 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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198 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
144 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
660 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
1k 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
487 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 ...
2
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0answers
289 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 ...
2
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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 ...
2
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0answers
517 views

Why does this material show up black?

So basically I was rigging up the new CS:GO hands in a multirig,as you do, and after all the rigging was done and textures were assigned, I went to do a render in Cycles to see the end result. In the ...
2
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0answers
367 views

Does cycles allow for negative values in color data?

I was recently working on a node setup the required for some color image data to have some negative values, as I was using the subtract node. As far as I can tell, the values stop being subtracted at ...
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0answers
137 views

Change the Description of a value of a node

Is it possible to change the Description of a value of a node in Blender python. I am coding an addon, and want to set description for a value of a node. But by default, it shows: "Input value used ...
2
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0answers
74 views

Mixed textures in blender shifted off, any idea how to solve it?

So, I've been texturing this model for days now, following a tutorial but after mixing the textures to get the ideal skin tune, I did a quick render and the textures are shifted off, they are far from ...
2
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0answers
439 views

How to properly import Image as Plane with Alpha Channel in Cycles?

I am making an 2-D animation using images-as-planes with alpha channel. I am using the Cycles render engine. I am using Blender 2.75. How do i properly import 300 dpi images, with alpha channel? ...
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0answers
162 views

How to search images in folder by suffixes and add as Image nodes?

I'm working on an addon which will add image nodes with custom images. Here is the plan: - click on "file browser" button and choose a folder with 5 textures (every texture has a suffix (tex_nor, ...
2
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0answers
723 views

Reflection problem on mirror object

I'm working on a project that uses backplates and then I am doing character animation seperately and compositing the animation over the backplate. When doing the character animation I try and match ...
2
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0answers
43 views

Modify light source so it will only create highlights and not reach into shadowy crevices?

My model has many protrusions and crevices. I am satisfied with the shadow that currently exists in the crevices, but the protrusions need more highlight to create a sense of volume. How can I ...
2
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0answers
160 views

Fresnel has to be above 1?

When I'm doing something with metal node groups, I noticed something with the Fresnel node. When I set below 1, I get a strange result, not the result that really reflects but only a part or none ...
2
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0answers
147 views

Atmosphere appears on the dark side

This didn't used to happen but it seems like a bug I'm not sure. I was messing around with the color ramp of the atmosphere and now part of it appears on the dark side and then cuts off. I haven't ...
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0answers
771 views

Atmosphere Colour Change (Blender Render)

Just a quick congrats to the moderators who won! Glad to see some friendly faces keeping their spots as you've help so many out including me with this project and others. Back to my Earth project. ...
2
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0answers
727 views

How can I render the emission only?

I'm currently struggling with something that's frustratating me now for a couple of hours and still im not getting a reasonable result. I tracked a footage where I would like to insert a cube ...
2
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0answers
91 views

GLSL interactive lighting

Often when I'm doing something in the GLSL shading mode I always need that extra interactivity for viewing what's going on with my scene. With all the materials assigned and lamps in place, from time ...
2
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0answers
233 views

What does a red background for filename mean in an Image Texture node?

Normally the image file name is black on light gray. Here, it is red. What does that mean? I know it's not the file missing. The scene renders just fine, with the image texture doing what it's ...
2
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0answers
83 views

Is there a way to turn off all the tabs on the tool shelf in the node editor in verion 2.72?

I see there has been a similar question asked about this but it was for removing single tabs you didn't want. I want to turn all the tabs off in the node editor tool shelf back to the way it was set ...
2
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0answers
1k views

How to work with a custom Python node in Cycles

I'm currently trying to create custom nodes for the cycles rendering engine, in python. So far, I can add the node in the node editor with inputs and outputs. What I don't understand is how to set the ...
2
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1answer
2k views

Gaussian Blur Blender Material Node

I was wondering if there is a way to do Gaussian Blur effect on a generated texture in blender. Currently I blur images by mixing gain and then subtract them from the vector but this creates more a a ...
2
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1answer
193 views

How to add a vibrance value to a render in post processing

Is there a way in Blender to add vibrance? I have a render which I'm trying to add vibrance to in Blender, not in Photoshop (which is what I've been doing, but is tedious). I know there is a ...
2
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1answer
4k views

What is the Python script to create nodes?

Is there a way to convert nodes (or nodes group) into Python script automatically? If not what is the python script to: create a node and set his position attach a node to another and choose the ...
2
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1answer
227 views

How to programmatically add objects into cryptomatte node?

How to automatically add object to Matte objects? Right now I have to use Pick output of Cryptomatte and then use eyedropper to add all the objects I need. Ideally, I would like to have a mapping: ...
2
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1answer
409 views

Why it is impossible to drag an image into UV/Image Editor and Node Editor?

A strange thing happened. On my best computer (Windows 8.1, CPU i7 with 32 GB RAM and 3 GTX770 onboard) it is impossible to drag an image into UV/Image Editor and Node Editor. The mouse pointer is a ...
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21 views

How to add blend modes to emission shader node

Is there a way I can add a Blend mode node to connect to the emission node, and make the object beneath blend with the above object which has the emission.
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0answers
37 views

Can I create my own area in Blender?

With Blender I can change the type of area (shader editor, 3d viewport...) by clicking on its upper left icon. Does Blender apis allow me to create my own area type and using the Blender node-editor, ...
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0answers
27 views

I would like to render a camera view in a plane area (EEVEE virtual CCTV closed-circuit television)

Hi everyone, this is my first topic on this forum. I would like to render a camera view in a plane area like a material or texture. I think that this is a procedural texture but I don't know how this ...
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0answers
30 views

Generative Water Rings

Does anybody have a recommendation of how to create generative water rings, non animated, I need to create many variations and simulation seems like an extra step if this effect can be done with ...
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0answers
24 views

Geometry node's 'pointiness' channel not finding for edges

I've been trying for several projects now to get a good procedural weathering effect using the geometry node's 'pointiness' value in the materials. I feel like I understand how the setup is meant to ...
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0answers
17 views

How to get RGB material output for points in the UV coordinate space with blender Python?

I would like to get the RGB output of a material at specific UV coordiantes. Is this possible to do with Blender Python? So basically I have a plane with a procedural material applied, and then I ...

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