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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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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21 views

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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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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26 views

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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65 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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18 views

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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45 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
29 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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27 views

Activating one object disables another object's transparency

I have a plane with a displacement modifier and assigned different colors to the z-values by a color ramp. I then animated it that it extends from individual points to the whole plane by keyframing ...
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30 views

Eevee engine not rendering

I uninstalled and reinstalled Blender a few weeks ago (v 2.8). Since then the app has acquired shader problems. The app warps and blurs objects any time I try to use shaders. Lighting works to some ...
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26 views

How can I match hair particles/foliage shading with emitter/terrain?

I'm trying to create an environment with stylized grass/foliage and I've almost got it the way I want. However, there are still problems with the shading. Below is a test scene in EEVEE with the grass ...
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24 views

How to lessen intensity of world reflection and stop affecting certain objects

I made a simple world shader that makes a blue sky, however this is reflecting to all objects in my scene that should be the default gray color. The quick solution is just to turn off diffuse in the ...
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51 views

Why is my World shader with a gradient in 2.8 only showing some of the colours in my colour ramp?

I would like to set the 'world' shader to a gradient, which should be one colour at the nadir, another colour at the zenith, and other colours in between, using a ColorRamp node. There is an answer ...
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33 views

How to cull the backside of a mesh but keep the lights inside?

First off: the "backface culling" option for materials doesn't seem to do anything. Second: I got the effect I wanted (almost) by using the Geometry node to mix a Transparent shader with a ...
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40 views

Vertex Normals Not Facing Correct Directions

I was in the process of modelling a part, but then noticed that the faces were not being shaded properly (smooth shading with auto-smooth normals). Upon closer inspection, all face normals are in the ...
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89 views

Blender Emission Shaders do not work over Alpha Channel

The above picture is a composite of two layers for a scene I am working on. You can see clearly that emission shaders for the sparks work only if there is RGB behind but not if they are in front of an ...
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59 views

Coffee Texture as not Expected

Supposed done all things right, but it still showing some weird things on Coffee Part, What is the problem ? Thanks in advance! Supposed done all things right, but it still showing some weird things ...
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1answer
14 views

Both parts have emmision set only one shows it, though

This is a scene of a Camaro in an unlit environment. It's meant to be pitch-black until the keyframed emission material turns on. As you can see from the first image, the material shows in material ...
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17 views

Shading with two .PNG maps and one object

I am trying to make some TTS models to play W40K in the lockdowns. The resources I got a hold of has the body and the guns as separate documents. They are saved as .png and I can't seem to make them ...
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23 views

Shader displaying wrong color; blur effect in Shading workspace

Blender was running fine but in my wisdown I decided to uninstall it to reset everything to defaults. After reinstalling, the shader base color I chose was displaying incorrectly. I chose red and the ...
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1answer
181 views

Lines on Donut after texture painting

I've been following the BlenderGuru's tutorial, I'm at the last part of level 2. unfortunately I found this weird line (looks like'N's) on the inside of my donut. I've just finished doing texturing ...
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122 views

Baking Shaders For Unity

I’m still fairly new to Blender, but I have a simple model with some shaders that I want to bake onto it, but I’m finding difficulty baking it properly. For one, it seems to be baking the current ...
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171 views

Worse Megascans lighting compared to Unreal Engine

I'm starting to learn Concept Art, creating my own scenes and so on. Of first I started using Unreal due to the conection it has with Quixel Megascans, being those free when used with Unreal. But then ...
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41 views

Why am i unable to connect node in shading?

I want to connect colour to surface, but i am neither able to select colour nor surface as shown in
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88 views

Displacement works in viewport but not in render (Cycles)

My problem is that my noise displacement map is working well in the viewport (Cycles rendered mode) but when I f12 render the image, the displacement just disappears. What am I doing wrong? enter ...
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52 views

Is there a cheap way to achieve this 'bubble film' look

I'm new to Blender, having basically only just completed the donut tutorial. I'm making some diagrams for a scientific presentation, which look like this: I'm reasonably happy with how this looks, ...
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44 views

Why does the “shading” tab sometimes make my model to disappear?

Very much a newbie here. I created my model, a carrot, and I would like to do some colour on it. So I click on the "shading" tap and then the whole model disappears! I thought it was a ...
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36 views

How Can I Bake Bump Maps

How can I bake a bump map to use for a low poly version of my model? The only thread I found that helped was severely outdated. It seems like it would be better to calculate the actual bump map ...
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1answer
80 views

Merging verts by distance breaks smooth shading (Blender 2.8)

I created a wall piece from a cube, applied smooth shading to it and then used the array modifier, but after merging the verts by distance, it mixes up the normals in a random fashion, while for the ...
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1k views

How can I achieve a Anime Shader look in Blender?

So, i saw a post in this Stack about 2 years ago but nobody had awnsered, so im trying to ask another time, does anyone know how to actualy get this Shader in blender 2.8? Somehow they have controls ...
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12 views

Different color per hair parent

I want to recreate something like the picture below. Some parent hairs are black some are blond. And the children color accordingly. I use some hairs with a lot of hair children with kink type curls I ...
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14 views

Blender wireframe fresnell transparency fading

Coby Rendal helped me out on the wireframe / backfacing culling issue and theory. Though one last step for my base is left. I want to have the back of the sphere slighly bleeding into the visible part....
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55 views

Why selecting nodes in shading mode is not working?

I clicked on B then with the mouse left button hold down dragging it top cover the nodes. I want to select the 4 nodes but when I'm leaving the mouse left button the selection is gone. I want to ...
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26 views

How would you select an absolute screen color?

Before moving to 2.8, if I needed to fetch a vertex color used on a face I could easily enter wireframe mode and get the absolute vertex color. Since the wireframe in pre 2.8 versions would ...
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94 views

Model is invisible and with a smeared texture in the shading tab

I'm trying to texture my model. I go to shading tab where a background is displayed. At first my model looks fine and grey but when I move my camera or pan and rotate, it disappears into smear . I ...
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19 views

How to transfer multiple textures/UV maps between two rigged meshes

I'm trying to texture my character in Blender. The original mesh came from DAZ, and was sculpted a bit in C4D before being brought into Blender for Rigify rigging and animation. Now I've made the ...
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22 views

imac problem with shading node

My friend and I are both learning to use blender. He is on a PC and I am on an IMac. When we first open blender and click on the shading node, his sees the cube fine but on mine the window is black ...
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139 views

Increase the contrast of shadows like you would using a color ramp

Is it possible to increase the contrast of shadows the way you would with a color ramp, but without effecting the colors themselves? I don't want hard edges, and color ramps allow you to have a middle ...
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1answer
236 views

Change whole blender scene into a cartoon look

So, I have a scene full of meshes (around 70 or so) each with own textures (no normal maps etc tho). I am wondering if there is a way how to change the whole global scene into something more cartoony. ...
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12 views

Weird tearing on model

When modelling I will apply a turn the sub surf modifier back on and smooth shade my model and this tearing happens. Pressing Crtl+N doesn't fix this issue.
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14 views

How would you approach an alternative overall shading in the viewport (for scene check purpose)?

I would like to create some check scene tools based on shading. This would consist in having a shading mode, in a 3D View, where for example all the objects that have an animation (or more than a ...
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50 views

Small lights as decals

I purchased decal machine recently and I've been playing around with this awesome tool. I'm a newbie and want to create small lights (for an instrument panel, like here: https://www.deviantart.com/...
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19 views

Fix wierd lighting/shaders with color ramp material

I'm having trouble figuring out why there are those weird triangle glitchy imperfections in the shaders of this low poly car. It's a fairly flat object but there are those outline triangle things near ...
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43 views

Point Density texture do not work

I want to get shine spray, but Point Density do not work and all object is shine. Same thing in other projects, when I use Point Density. First image that I have and second that about I want
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1answer
24 views

Shading fixing mesh

please tell me how can I get rid of shading problems? In the first screenshot, I set the hard edges and used auto smooth, and in the second screenshot I used the Weighted Normal modifier. But in both ...
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72 views

How to create realistic shampoo/gel shader with cycles

Hi! I'm trying to achieve pretty much exactly the attached result but I can't seem to get my material right. Any recommendations is highly appreciated!! @luciano - thanks! Well - I know I'm ...
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36 views

Glossy metal material

I am making an aeroplane. How do I recreate the material that you see below. It is not too glossy, not to diffused, but at the same time it has that metallic look.
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40 views

How do I diffuse light that responds to the thickness of an object?

I have an image of a lampshade that I am trying to make a material shader for. I have a bulb inside that is a point light or I have also used a light bulb model with emission for cycles. I am trying ...
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103 views

Principled volume looks completely different between Eevee and Cycles

I am having an issue getting a volume shader to render properly in cycles. It looks essentially how I expect it to in eevee, but for some reason the black part of the render becomes a little distorted ...
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Fire+Smoke Simulation is not Rendering Properly all of the Sudden

I have this little test explosion that I've rendered out in 2 different perspectives in 2.82a. All was fine until I updated the shader and re-rendered it with 2.83 and towards the end of the first run ...

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