Questions tagged [shaders]

A shader is a computer program that usually runs on a GPU and is used to do shading, texturing, special effects or post-processing. Shader nodes specifically refer to the nodes used to create shaders for Cycles, but this tag can be used for other shaders as well.

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50 views

How do I prevent a texture from stretching when using a boolean modifier on the object?

I made a lava planet and used the boolean modifier on a cube to "eat" it away. For the planet I made a material in the Shader Workspace. When I move the cube on the planet and it eats the planet away ...
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79 views

Can't decrease the brightness of the transparent shader effect

I'm trying to make a transparent plane in blender 2.8 that works in cycles. I want to reach the same effect that I have when I set up a background image with the transparency enabled. Below you can ...
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Why is viewport scene violet? [duplicate]

I've switched from C4D (getting too costly for a retiree) to Blender 2.8. I've created a simple scene consisting of the monkey atop a plane. Why is everything in the viewport and eevee shaded in ...
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1answer
54 views

Problem With texture or UV I'm not sure

I'm a beginner and I have a problem with one of my models. I can't seem to add a texture to it. When I try to apply a texture, it applies only the general color of it. Every texture paint I do on it ...
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1answer
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How to specify a different value for a node parameter, part of a node group, for different materials

I've got this object which exists of 10 meshes or so. Their UV maps are all different, of course. I would like to have the same shading on all of them, so I created a node group. The node group ...
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79 views

Toon Shader Programming/Noise Generation/Line Coloring

EDIT: A LOT OF IMPROVEMENTS The file: The output will look something like this (but in color): (Mickey & the ship's wheel are cel objects, and the ship & grass are background objects) CEL ...
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22 views

generate texture by interacting with another mesh

Hello Blender Community, I have a scene where i want to generate a texture on mesh A by letting it interact with another mesh B. The goal is that i don't have to animate the texture by hand and ...
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1answer
43 views

Using an opacity map with the Principled BDSF?

I have baked a set of maps in Substance (making trim sheets) and would like to plug them back in in Blender, incl roughness, metal, normals etc. I would like to have those, my base colour map as well ...
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77 views

Displacement node doesn't seem to work

I've been trying to get the displacement node to work in blender 2.80, but am having no luck: It doesn't seem to show up in the cycles render either: anyone know what I have to do to get it to work?
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Movie is not playing properly blender 2.8

My Movie for my TV is not playing in render mode of my view port but it is playing in the UV Editor i have no idea whats going wrong. I basically added an image texture and opened an mp4 Movie Format ...
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3answers
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Can I refer to another object's properties from a Cycles node shader? Drivers? If so, how?

I am trying to develop several shaders that need to take into account the position or orientation of another object in my scene. Seems like a generally useful thing to be able to do. Here's an ...
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1answer
64 views

Flat Procedural transition

Is there any way to create flat transition using shaders(nodes) just like in second picture? Is it even possible with shaders? I tried constant ColorRamp but it goes half way through, not full face or ...
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1answer
71 views

How do I merge smoothing shaders seemlessly without joining objects?

I'm having an issue with creating a game asset for the Creation Engine. I am trying to have two objects, a head and body, match seamlessly together without joining them. They don't and it's because ...
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In Blender 2.8, 3D Viewport shading render mode is missing. How do I get it back?

I've gotten to a state where my render option in the 3D Viewport is missing. I can render just fine using EEVEE. The screenshot is missing the camera and light, but I've added those and it makes no ...
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2answers
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Shading faces depending on orientation

Newbie here with possible strange request. I am learning anatomy, currently by studying a 3d skull. I would like to lit it in some ways, so that the faces facing front would be in a certain color, ...
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1answer
52 views

How to check if EEVEE or cycles is used?

Is there a way for a shader/material to check if it is being render in EEVEE or cycles? I want to activate different nodes that immitate or indicate some effects that don't work so well in EEVEE, for ...
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How to correctly separate vertex color data into the R channel on EEVEE?

for some reason if I add (in the shader tree) the ATTRIBUTE>COL from the vertex color property and channel it to a separate RGB (only making the R channel plug into a ramp node and then to the shader ...
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1answer
31 views

My textures are rendering transparent and strange

I am trying to make this cool minecraft effect on blender. I've done all the modeling and tracking. In rendered view it looks fine. But it comes out very weird. I am using blender 2.8 for this ...
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24 views

Holdout node cause odd outline

As the title says I'm having issues with the Holdout node causing an odd outline: https://imgur.com/a/eaTu8KP Sadly I don't want to share the blender file because this is a project but I would be ...
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53 views

spikes emerged when i put displacement node in blender 3d 2.8

soo i im using image texture for base color and displacement then i enabled experimental from render tab then i enabled displacement and bump in materials - setting - surface - displacement. and ...
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21 views

Access array modifier index in shader

Is it possible to get the array index of an array modifier in the shading editor? I need to shift the UV of every array segment by a certain amount. I can't apply them because the number of segments ...
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How to Create a bright semi transparent Crystal that reflects in multi-colors

I would like to be able to create crystals that look like this: https://pbs.twimg.com/media/D_p99yOW4AA0bNd?format=jpg&name=4096x4096 I would like them to be able to reflect multiple colors like ...
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59 views

Activate Smooth Shading and Subsurf Level with One Shortcut in Both Object and Edit Mode

Maybe I'm missing something, but I feel like changing the subsurf level and shading needs a lot of keypresses. Usually, I model in edit mode with subsurf off and flat shading. Sometimes, however, I ...
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1answer
83 views

How can I get only textures (with out shaders) from rendering image in Blender 2.8?

I want to get Only texture with out shaders from rendering image. In my rendering image. I want to output a texture-only image like displayed inside the red frame of this image. I want an image ...
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27 views

Texture that only visible in shadows

I am trying to shade an earth model. Trying to show night lights on the dark side, but I am having hard time on figuring out how to use light path node, to isolate night emission at the sunshine. I ...
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0answers
46 views

Blender shader that imitates sculting in stone

Im new to Blender nodes. Im trying to make a material and apply it to a mesh made of a single square. It needs to be able to take 2 textures. One stone texture, and one that has the ornaments that ...
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31 views

How to remove the movement of shadows? (EEVEE)

I have a issue with shadows cast from my sun light "Jittering" is there a way I can bake the shadows so they don't move at all from frame to frame? Also it only appears in the render, doesn't seem to ...
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2answers
4k views

How to make a holographic reticle shader in cycles

Does anyone have a lead on how to set up a shader in cycles to mimic the behavior of hologhraphic sights in blender, as shown in this image? I don't want to have to try and figure out exactly how to ...
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how to set up downloaded textures

I just got a model from kitbash for free and I was wondering how to set up the texture that was in the zip file inside of the zip there was the.BLEND file and a texture folder, inside of there where ...
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2answers
84 views

Mimic Sculpting Shader/Light setup for Render

I'd like to recreate the shading that is going on in the Sculpting view for high-resolution render. It seems to have a very specific light-setup and way of catching light the soft specular, very thick ...
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56 views

Separate alpha from color in Shader Editor

In the Shader Editor, I can create an RGB node and in there, I can set an alpha value as displayed in this screenshot: However, no color separation node in blender supports extracting that value and ...
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0answers
48 views

What does the 'sheen' slider of the Principled shader do behind the scenes?

I'm trying to create a unified shader setup between a bunch of different render engines for exporting models. I've been attempting to recreate the 'sheen' effect from the principled shader using ...
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11 views

clothing retains color and others do not

So I created characters and shaded them etc etc. I uploaded to Mixamo and a lot of the characters lose their shading. In the case of the image one character retained some color the others did not. Im ...
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22 views

Pass viewport camera world space position to shader

AFAIK, the Camera Data node doesn't provide viewport camera's position, what alternatives do I have?
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29 views

I can't make correct glass in EEVEE

I make a glass material, but it isn't rendered yellow glass behind him But cycles do it
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31 views

How to change shading of selected faces with retopo - 2.79 comparison

2.79 renders the underlying selected mesh more "pronounced" over the other objects when in editmode. This is a common situation when doing lowpoly retopo over highpoly. In 2.8 its really sinks in to ...
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1answer
25 views

smoothing the placement of vertex

I'm trying to model a car, when joining two hood and the fender I had to tweak to geometry to make everything quads but I ended up with sort of bump as you can see: Here is my topology: each time I ...
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0answers
23 views

How can I make a flat wooden material?

I'm making this kitchen scene and I am trying to get the cupboard material to look like the one in the picture. Currently I think this looks to "plastic" and I want it to look more real. Is there any ...
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21 views

Why does my model have black lines on the mesh when I zoom out?

I have no idea why this happens and I am really stressed out about it. Can someone please help me? Close: No Problem. Far: Black line left of eye where my UV seam was...
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2answers
4k views

How to turn on Eevvee rendering live preview?

How can I turn on Eevee rendering live preview in 3D view window? The new Blender version has some interface changes, and in the Eevee rendering mode I can render an image, but I don't see live ...
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0answers
113 views

Shader Editor: blinn-phong shading in a BSDF world

I am trying to access the light direction in shader editor to make a custom lighting shader, but couldn't find such node? Alternatively, if anyone can come up with a conversion from blinn-phong ...
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0answers
66 views

I can't open the viewport shading dropdown when in render preview shading mode

When I click on the viewport shading dropdown nothing happens all it shows is a popup bubble that says Viewport Shading. I am currently trying to change the backface culling checkbox because Unity ...
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2answers
615 views

Basics of Cycles shading

I have been using Blender for few months on and off. I keep learning and forgetting how to do things. The problem is I don't have a solid understanding of few key things in blender especially about ...
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25 views

MixRGB vs Math for greyscale

I'm currently using Blender 2.8, but this applies to 2.79 too. In the shader graph when using scalar/greyscale values is there any difference between using the Math node and MixRGB for the operators ...
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20 views

What is the fastest way to add ambient occlusion?

As I am aware there is a couple methods to add Ambient Occlusion (AO) to scene/object, via Input>Ambient occlusion in shader editor it adds a AO to objects using that material, another way is to ...
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Help me make effect of transfusion by shaders

I have mesh of piece of guitar( I dont know how to translate to english, it is white ). Now i need make shaders. I want to do the same transfusion of white(As for me it looks like waves ) Can i do ...
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2answers
56 views

Baked normals Look a Strange

For a few months I'm researching and making little tests to better understing and optimize a LowRes Workflow, And this "error" continue to occurs on this particulary model that I'm working on, It was ...
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22 views

Is there anyway to use a shape or mesh as a mask?

I saw a tutorial on making a "sky box" or "Sky dome" and I was wondering if this can be done in any other shape like a humanoid mesh. Alternatively: im trying to figure out out how to put a nebula/...
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1answer
443 views

Python 2.8 creating Diffuse BSDF in a shader node, when I want it in a surface node

In Blender/Python 2.8, I can't get my code to create the surface node I want (it creates a shader node along with a surface node that I don't want). The objective is to assign an image texture to an ...
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2answers
14k views

How can I add Lens Flares/Halos?

Is there an addon, or an easy way to add lens flare effects or light aberrations in Blender? I've been using Blender for a while now, and it's very time consuming to always have to export to another ...