Questions tagged [shaders]

A shader is a computer program that 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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Use cycle transparency shader to obtain clean borders when scattering large patches of grass?

When we scatter large patches of grass: we often have an unclean border, as the clump will exceed our terrain boundaries geometry. this is one of the CONS of using patches of grass, it's greatly ...
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31 views

material preview displays objects in black although it has texture

I'm following Lynda's tutorial and I've encountered something that I don't know how to fix. some of my objects appear in black while I'm in material preview on the layout panel but has no problem on ...
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1answer
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Blender Visual Glitch

I'm not sure how to describe this, but it happened after killing the process of a blender texture baking. Now there are invisble or colored planes flowing through or from my mesh when I select it and ...
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Minimum amount of illumination in Cycles?

I'm rendering a satellite in orbit of the Earth for a client. The sun is head-on so there is nothing to light the back of the satellite. Since this doesn't look great and more of the satellite should ...
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37 views

principled bsdf shader suddenly not available in 2.79?

so i'm on my desktop computer and because of an outdated plugin, i'm having to work in blender 2.79 or below (i've chosen blender 2.79). strangely though, unlike when i work in 2.79b on my laptop, i'm ...
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Why is my texture stretched, despite clean UV-unwrapping?

The texture is meant to be a horizontal slate brick pattern. I have imported it from Quixel Megascans so it automatically set up all the nodes with the Normal Map, Roughness, AO and Albedo but for ...
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How do I create custom materials properties in the node editor?

Okay, so I have DONE this. Multiple times. But I can't remember wtf I did and searches for this are useless for the same reason you can't easily do research on the word "The". What is the ...
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22 views

Hollow VDB while rendering?

Rendering the VDB in viewport will give me the same, hollow-looking result as in the final render, but messing with the "wireframe" option underneath viewport display will give me a thicker ...
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41 views

Why isn't the shadow being rendered?

I've used this tutorial to do a toon shader: https://www.youtube.com/watch?v=sJTEJKQ0lYw I have this in my shading tab: The shading appears just fine in the Material Preview (although mind that for ...
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17 views

A shaded for two colour games

So I’m participating in a game jam where I can only use two colours to make a game. I wanted to try and make it in 3D, but I’ve run into some problems (don’t worry this question isn’t about game ...
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Pure white pixels appear in texture paint

I found a similar issue on the website, but none of the solutions worked : Iwant to texure paint my character, and suddenly these pure white pixels appear : Trying to paint on them just increases the ...
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Blender behaves oddly on windows 10 suddenly

On my Surface Book 2, Blender used to work alright. I know it's not the best hardware to render, but it's all I have. Suddenly, I realized, Out of nowhere, the shading editor was acting strange. ...
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Blender 2.90: Why is my shading bugged?

Downloaded Blender 2.90 today, coming away from 2.83. Happy with some of the new features the update has to offer, but I've suddenly noticed that the shading on my models is now bugged. Whenever I ...
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Why I'm getting burning marks of the sun on render?

I'm getting this burning marks in the sky and i don't why and how to get rid of it. I have no composition, just sky texture Nishita. Previous project i had also some issues, didn't use sky texture, it ...
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OSL: Transparent shaders

Let's say I wanna make a snow shader in OSL. How is it possible to create and manipulate an alpha channel in the shader? Kinda like a "cutout"?
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Help needed changing material gradually for each different object

I'm trying to do game visualization for my mobile game in blender. There is a path made by cubes and there is player object an UV Sphere basic idea is that when the sphere passes trough a cube surface ...
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1answer
24 views

Eevee doesn't render the full image

I had some problems with both Eevee and Cycles rendering. I tried to fix the problem with cycles, but it looks like the Cycles problem is way harder to fix than the problem I face with Eevee. The ...
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Bake Textures after adding nodes

World, i am fairly new to Blender, so please treat me as a noob. I have the following scenario: I exported a Model from Google Maps, duplicated the model, created a UV Map of the new model, decimated ...
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Dots on Shading Viewer

how do i get rid all of these small black dots on my shading viewer? Its so annoying.
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21 views

Best practices for modeling/UV mapping an object that will be duplicated multiple times

I am still new to blender and am trying to find some best practices to help reduce the amount of headaches I end up with. My current issue I have gemstone object that I will be duplicating multiple ...
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How to imitate LAMBERT diffuse shading and COOKTOR specular shading in 2.8?

I'm new to blender and was working on updating some code for a project from 2.79 and 2.8. But it appears that the LAMBERT shading and COOKTORR shading isn't supported anymore because Blender doesn't ...
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14 views

Two objects with the same material but the other one doesn't have texture

Both objects here have the same material but the letter M doesn't have the texture. Help.
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72 views

I can't make the outer glow for the moon

I made this moon and I'm trying to give it an outer glow and also I would like to have emission, but the texture to be visible. Can you guys help me? I'm attaching the render and some stock photos for ...
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56 views

Eevee render lighting causes to flicker and distorted

I'm fairly new to blender with 2.83. I have the shirt and waist objects using point light as an only source for lighting. I set up shading nodes using diffuse shader in order to light up the object ...
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32 views

Convert a “MetallicSmoothness” map into two separate Metallic and Roughness-maps for a PBR workflow?

How do I convert a "MetallicSmoothness" map into two separate Metallic and Roughness-maps for a PBR workflow? I have a map from Unity labeled "MetallicSmoothness", and also a ...
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Why am I unable to color my volumetric clouds white?

I am trying to render a cover of white clouds as seen from above. I am using the Principled Volume shader, using gradient and noise textures. It now looks as follows: However, the clouds are very ...
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14 views

Extract BRDF given a node tree of shaders?

With a node tree of shaders, how can I "extract" the resultant BRDF? Ideally, I wish I could compute an analytical formula from the node tree: BRDF($x$, $\omega_i$, $\omega_o$), but I ...
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2answers
33 views

Shading issue's with bevel

For a model I used a bevel to get nice and smooth edges, but since the bottom right side is slightly angled* I need to add some extra geometry to maintain a quad only design. But this makes it that ...
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32 views

Problem opening hdri from hdri heaven

When i am loading hdri setup from hdri heaven, it is not showing up.
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1answer
38 views

Problem with displacement on edge

I have a problem with displacement on edge. How can i solve this problem? I use this setting for the cube. Thanks
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Blender 2.83.4 Face Removal when Assigning Materials

I'm a noob in Blender, and I'm currently trying Grant Abbitt's tutorial on YT. I have Blender 2.83.4 installed, and there's a problem when I try to assign a material on a face of my Flashlight (the ...
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38 views

Looks distorted is render but fine in material preview

I have a problem with my character project. This is possibly due to some bad topology of the mouth area. I modelled a head and applied some materials and textures. Please note that the head and the ...
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31 views

Megascan Decals in Blender 2.83

How can I add multiple Megascan Decals on an existing material in blender the same way as Unreal Engine does it(snaps to the materials)?
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23 views

Problem baking a diffuse texture with a metalic material

Hi so I've been constantly scouring reasons why my bake has been unsuccessful. I was trying to bake all the materials into a diffuse map to use. When I did this only some of the materials would bake ...
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1answer
59 views

How to share shaders among different materials

In order to model a better quality Earth without distortion at the poles, I decided to use a cube, subdivide it 3 times and then to-sphere it. It works much better than a UV Sphere and than an Ico ...
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How can I make some shaders more sensitive to light than others?

I'm lighting my scene with an HDRI and a point light. I want some shaders to be more affected by the HDRI than others. As in, I want some shaders to be more sensitive to the HDRI and absorb more light ...
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70 views

Random per island broken in 2.9?

I am having an inconsistency between outcomes using the node Geometry>Random per Island It is the same node setup behaving differently between 2.83 and 2.9 2.83: I will get the colors assigned to ...
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93 views

Transparent BSDF renders hair as black in Cycles

This is a simple question, but why is the hair in this render showing up as black in Cycles? I rendered it in EEVEE and it seemed to work fine. Also, when testing an only-transparent material it ...
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14 views

error with shading tool in blender

Anybody knows why this tool does not work well in my case? Even when I try to add a new material and apply it to the modeling that face disappears, and it looks like the image I have download the ...
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1answer
456 views

How do I export model with shaders?

I have no texture image but colors and shading in materials. I want to export it in fbx so those materials(no image texture) with my shaders will be applied in the result. I'm absolutely new to ...
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Object is transparent against background

This scene was nice to work with for a while, but somehow I managed to push a button that makes the objects transparent against the background. How can I get this back to normal?
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my blender is crashing automatically when Iam switching to shading or render port

my laptop has 32gb of ram and 6GB graphics but also when iam switched to shading or render port 'it just closing the blender'
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36 views

Is there anyway to differentiate a value ( from the shader editor ) in Blender

The title says it all. Is it possible? bit of a noob question though so hope any of you do not mind. Differentiation refering to getting a derivative of a value.
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Textures are lit even in a dark world without light

I've applied the Principled BSDF shader with a few texture maps onto a plane with world colour set to black. However, the texture is still evenly lit across the plane. I have done nothing else to the ...
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24 views

smooth shading issues after booleaning cylinder

i was trying to make a hole in cylinder part of my object, but then i faced a problem. after adding a modifier, shading issues became visible (like on a picture). what am i supposed to do?
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Shading issue problem

i have an issue with shading in this model how can i clean my shading and adding different bevels at the top and bottom edges and circles at the same time ? Things i tested till now: 1- adding edge ...
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41 views

How to add custom shader node into menu

I'm trying to write a blender plugin for a thirdparty renderer and just wondering how to add custom nodes into the "add new shader" menu. Currently I make subclasses of bpy.types.ShaderNode ...
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My viewport image is not updating very correctly

If I add a cube and resize it the outline increases but the shape shader does not update with it, this is the same for any shape, if I add another shape a UV Sphere for instance and resize it the ...
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37 views

When I shade smooth I see a weird metal ball

Can someone please tell me why when I shade smooth I see this metal ball on my object?
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1answer
26 views

Need advice to cleanup and rectify shading issues caused by boolean

Need advice. I used union boolean to make this object, now need help to cleanup and rectify shading issues. Thank you

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