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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11
votes
1answer
931 views

Recreating Mandelbulbs with math nodes

I'm trying to recreate a Mandelbulb using Volume and math nodes in blender. I have been able to create a Mandelbrot with math nodes but I am having problems making it 3d. I tried translating this ...
8
votes
1answer
16k views

How to make a crystal material?

How to make a crystal material in cycles with the node editor? Much like this - Not exactly like the image because I'm trying to make an object with a light that is emitting from the center of the ...
9
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2answers
4k views

How to create fire materials using the new Principled Volume node that visually look the same as the “old method” of fire materials?

There is a new volumetric shader node called "Principled Volume" in Blender 2.79 as of this commit. It appears to support a new temperature attribute, using blackbody temperature. Using the more or ...
6
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2answers
2k views

Cycles Material — A kind of glitter

Hi guys, I'm trying to simulate the metal flakes that you can see in this helmet. It looks close to a metallic paint + flakes, but it definitely is something else. I found a few materials that come ...
11
votes
2answers
1k views

Combining multiple textures with a white background

I'd like to sort of "overlay" these shaders, but the only options are mix and add. Allow me to explain. I made two images, both white background, one with red scribbles and one with blue scribbles, ...
8
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1answer
2k views

What is wrong with this OSL shader?

I don't understand what is wrong with this shader ...
7
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2answers
1k views

Black reflections at extreme angles with glossy shader on smooth surfaces

How do I remove them? They don't appear when using flat shading. Nothing in the scene can cause this.
1
vote
1answer
704 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 ...
1
vote
1answer
458 views

is there a node that outputs the distance value from the camera dof in cycles?

I'm trying to work out a node group that will take the distance value from the camera to color objects from that point forwards / backwards and i've been triying to find an output that will give me ...
1
vote
1answer
9k views

How to make an object not be affected by light?

I was to create a textured plane, and I want that plane to not be affected at all by light. Meaning no shading, and the render is exactly as bright as the texture I provided. Kind of like using the ...
3
votes
1answer
138 views

Overlay more than one transparent images in one shader

I'm trying to use the Shader Editor to put four transparent images onto one object. My approach to this was to add all of the alpha channels together and then to use that combined alpha to mask the ...
3
votes
2answers
4k views

BGE everything white in playmode

When I press P to play everything shows up white in the BGE. Shading is set to GLSL, and the objects are UV mapped and textured. It seems that vertex paint is overriding the material for the object ...
2
votes
1answer
179 views

Can multiple render systems be used?

I was watching a tutorial how to design an island in Blender, which worked really great, but i didn't want to use the .png Trees the guy used there. So i watched another tutorial and created another ...
0
votes
1answer
704 views

Pixelated shadow appearing in Cycles when using bump in node editor

I have a fairly simple scene with two cubes and a sphere on a plane. Each of the items has an image texture applied to it and a point lamp provides illumination. The sphere has a slightly more ...
37
votes
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 ...
23
votes
3answers
5k views

What do glossy distribution models do?

In Cycles, the glossy (and anisotropic) shaders have a Distribution option. Since I don't really know the difference, I have always left it at it's default (GGX). So what is a distribution model, ...
15
votes
1answer
2k views

Relation between Fresnel IOR and Layerweight blend?

I know that the Fresnel and Layer Weight nodes do much the same thing, but with one accepting a proper Index of Refraction, and the other a value between 0 and 1. I have always used the Fresnel node ...
10
votes
1answer
1k views

What can a custom cycles shader do?

It is my understanding that Cycles is a ray/path tracing render engine, and that it works by firing out "sightlines" into the scene to render, which interact with materials they hit in a defined ...
7
votes
2answers
2k views

Glossy reflections and smooth shading

I'm having a hard time creating a chrome object with flat faces but with smoothly bevelled edges. If you start with the default cube, add a bevel modifier set to, say, 4 segments, set to smooth ...
12
votes
1answer
984 views

How to make an “old glass” material in cycles?

I'm asking about the glass found in old windows. It is not just dirty, scratched, or with varied roughness, but it has irregular imperfections in the glass that make all sorts of distortions. Both ...
9
votes
2answers
1k views

How to use color ramp with torus

I have a torus and I need the material to use a color ramp so that all the surface has one color (red) except for a strip along the longest edge (yellow). Something like this: I tried unrap in every ...
7
votes
1answer
4k views

How to bake a fake SSS map (thickness map)

I am creating a character and I want to bake a fake SSS map that I can combine with my albedo map for my character and save resources instead of calculating the SSS in real time.
13
votes
3answers
14k views

What does the Roughness setting on a diffuse shader do?

What does the Roughness setting value in a Diffuse shader actually do? The wiki says: Surface roughness; 0.0 gives standard Lambertian reflection, higher values activate the Oren-Nayar BSDF. But ...
12
votes
1answer
5k views

What does the radius vector do on an SSS shader?

What exactly does the radius vector value on a subsurface scattering (SSS) shader do? In his SSS tutorial (making realistic bread), Andrew Price says that the XYZ values translate to the RGB values ...
7
votes
1answer
2k views

Translucent shadow (ceramic material)

I am trying to create ceramic material, similiar to the one on the picture: However I can't figure out, how to add shadow from behind the ceramic part. Translucency nor SSS don't do the trick. As ...
7
votes
3answers
22k views

Cycles Materials to Unity Shader

I have a really nice looking crystal material using cycles applied to my object; it's pretty fast and very simple - Just one glass node. Is there any way to convert this into an HLSL shader for use ...
6
votes
3answers
28k views

How to import Downloaded Materials/Files?

This is an absolute beginner question, I'm hoping it's not to broad, I will attempt to narrow it down. I have just downloaded a handful of .zip files for several material packages (all for cycle ...
5
votes
1answer
1k views

How can I create a single Cycles texture with a different image for each object it's assigned to?

For a model I've made I'd like to keep the basic properties of the Cycles material (shader type etc) the same for most of the objects that make up the model, but have a different image mapped to for ...
3
votes
1answer
3k views

How to view Environment texture in Solid / Texture / Material view?

I saw this happening in some tutorial, but have forgotten for the moment, What I want is : To make the HDR environment texture appear in 3D viewport without going into Render Mode. I can use the ...
7
votes
2answers
3k views

Convert cycles closure (shader) output to colors?

Is it possible to convert the output of a cycles Shader node to colors? For example to use an ambient occlusion shader output to multiply or darken act as a mix factor between other shaders?
6
votes
1answer
1k views

Volume scatter shader causes black spots

I am following Andrew price's video on making clouds but my clouds are rendering with black spots on them. I have tried turning up the maximum transparency value under light paths but there is no ...
6
votes
1answer
3k views

How to create dota 2 assets ? (Steam Workshop)

I want to model, export and compile an asset made in Blender to the game Dota 2, which tool(s) do I need and what are the settings?
3
votes
2answers
688 views

Using Blender to investigate the cast of shadows from an object onto a specific point in space

I think that Blender might do what I have in mind, but I am not a Blender and Python guru, so I am looking for directions. I need to determine if a point in space is obscured by an object, i.e. does ...
3
votes
2answers
5k views

Get glossy shading but no reflections (Cycles)

If you use a glossy/shiny material, it will have certain shading. It will also reflect the world environment color, and nearby objects in the scene. Is there a way to make it so that you still have ...
3
votes
1answer
670 views

Achieve Damascus steel style with Cycles

so I'm modeling a katana, and I would like to give it a proper "Damascus" style to the blade, and I was wondering if it's possible to achieve this in a way that doesn't involve me opening GIMP/...
3
votes
3answers
264 views

How to restrict certain lights from shining through specific materials?

I'm trying to create an effect where a material/object will block out a specific lamp, but not any others
3
votes
1answer
1k views

Substance B2M to Blender Workflow

I have decided to work with Substance B2M en use the texture maps in Blender. I want to work with the PBR shaders of Cynicat Pro and connect the Substance maps into the input nodes of the PBR Shaders. ...
2
votes
2answers
2k views

Fac input in Blender

I understand fac to represent the percentage of the second shader to be applied. I recall seeing examples where the fac value is set 1.0 and still there a node connected to the first shader input. ...
1
vote
2answers
165 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 ...
4
votes
1answer
174 views

How can I add banded lines to the end of cinnamon sticks(or sheets of wood)?

I would like to make a realistic cinnamon stick and its shader. My approach is as much procedural as possible, but easier options are ok too. Here is my first render: And a reference image: (3)I ...
2
votes
1answer
2k views

Glass Volume Material with Caustics and Colored Shadow

I am trying to build a glass shader for a glass volume material and I want a photorealistic image of the glass object the caustics good enough correct color of the shadows of the glass object Here ...
2
votes
1answer
274 views

Anisotropic BSDF on multiple meshes

I'm making stairs with glass steps, which have a big amount of metal bolts. The problem is that when each bolt is separated into individual object, the Anisotropic shader looks alright, but when I ...
1
vote
1answer
384 views

Why is my glass plane displaying diffuse at specific angles?

I have a glass plane mixed with a diffuse fresnel (and a .png texture): This glass plane shows up diffuse when viewed at an angle. When viewed straight on, it looks fine, like a regular glass plane. ...
1
vote
1answer
800 views

Conflicting faces rendering as black

In my blend file here, I'm trying to write a shader that uses a gradient to mix between transparency and the surface material. So far, I've managed that. But when transparent, the object shows black ...
0
votes
1answer
137 views

Is it possible to have smooth shading on only for rendering?

I'm tired of switching back and forth smooth shading for all my objects in the viewport before rendering. Is there a way to have it only turned on for rendering similar to the buttons in modifier for ...
0
votes
1answer
136 views

Extracting refraction info and mix

I'm newbie in Blender, and hope that my question would be relatively simple :) Now i render some images for my game by Blender, which i feed to Pixel Shader (PS) and achieve refraction effect by ...
0
votes
1answer
587 views

Blender 2.77 - glass shader looks like glossy shader [closed]

I downloaded Blender v2.77 and try to render Suzanne with HDRI Lighting. First I've used a glossy shader, then a glass shader and it surprises me that the glass shader totally looks like glossy, it'...
16
votes
2answers
4k views

Can Cycles do a Gooch Shader?

Now that 2.68 has introduced a toon bdsf, is it possible to recreate the Gooch shader? Insight, links, or a nodes screenshot would be great.
11
votes
1answer
3k views

How to mix 2 shaders depending on distance from camera

I want to mix 2 shaders in a way, that part of a mesh that is more far away from camera are using one of my shaders, and part of the mesh that is closer to my shaders is using another shader, with ...
12
votes
3answers
1k views

How to create a long shadow icon?

I am trying to create a flat/modern looking icon. The visual style I am aiming for is Here is what I got so far with my icon. As you can see it is missing the fake shading and fake shadow. Is there ...