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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4
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1answer
2k views

How to create a distorted reflection glass?

How to distort a glass reflection to make it look the same as pictured below?
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1answer
2k views

Shader Option Missing

When adding a material, I'd like to add a shader. Not sure why it's not showing up. Am I missing something? I'm using Blender 2.78
7
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1answer
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How to make a good glow effect around a sun?

I am trying to figure out how to make the space around the sun glow and than fade away into darkness. The sun was made in blender using cycles render and several noise textures. The glow I have ...
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2answers
786 views

What is shading?

In Blender often the term Shading or Shader is used. I still don't understand this terminology very well. Yes I have tried and for instance read the manual but I think it is because english is not my ...
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2answers
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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 ...
4
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2answers
933 views

Decompose image into albedo and shading with cycles

I am using cycles render in Blender for my scene and would like to decompose it into albedo and shading components. The concepts could be referred from these sites: http://www.cs.toronto.edu/~rgrosse/...
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1answer
15k 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 ...
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2answers
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Shadeless mesh that's being affected by lighting?

For a while now, I've been using the emission node to create shadeless materials and textures: that way, no matter what the lighting or environment is like, the appearance of the material does not ...
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0answers
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Creating realistic glass material with control over transparency

I`m trying to create a glass box with objects inside, basically a display case. On another thread here I found the setup for a realistic glass material, however the result seems very dark. The ...
2
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1answer
91 views

2-sided plane: bottom image flipped?

I created a 2-sided plane with an image on each side but the bottom image is flipped. I saw on another forum that the mirroring the second set of uvs could fix this but I'm new to using uvs in ...
2
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1answer
270 views

How can I cast shadow on background with nodes

I shot a video in a chroma room (object in front of green background), after I have eliminated the green (masked away). Please, can someone explain how I will cast the shadow of the object on my new ...
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2answers
1k views

How can I show the GLSL code generate by node?

Sorry for my english. how can i show the code generate by the node and can i write my own node Element? Can i add a uniform float var? in order to comunicate with the fragment shaders?
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3answers
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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 ...
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0answers
378 views

Is there are a way to export asset to unity 3D or unreal engine with the applied shaders?

In other words: can I use blender instead of substance painter or quixel in game development process, since blender support PBR materials, and the last version support PBR realtime render,and how?.
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4answers
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How do I create a reflective white material?

I'm pretty new to this and this is my first question here, any help would be greatly appreciated. So basically what I want to achieve is a floor material as seen in this photo... ...the reflections ...
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2answers
761 views

Can I use a vertex shader and Cycles at the same time?

For my latest project, I to radically alter the vertices of my Mesh object depending on where they are on the scene. For this, I wanted to the the linear algebra and use a shader, with something like ...
0
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1answer
579 views

Creases caused by internal faces

(The title reflects the fact that this issue has been fixed. This makes it easier for others to search, I think.) I have a mesh with unusual creases on both arms and one under the head. This pervades ...
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0answers
353 views

Why is there weird shading on on of the edges?

so i have been working on a blender and it was going fine until I found something weird on my mesh. There was strange shading on one of my edges. here is a picture. The edge that is highlighted is the ...
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1answer
721 views

Texture showing up in render preview, but not in final render

Recenty, I was making a plasma-like forcefield, and I found this material, which is almost what I wanted. So I copied the node setup, and I tried a test render, but it looked nothing like the render ...
7
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1answer
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How do I achieve a Shader Similar to Super Hot's Furniture and Enemies?

I've been playing around with cycle nodes for the better part of 2 days in Blender, but I'm getting no closer to my desired result. Instead, I'm getting washed out colors or terrible refractions. I'm ...
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1answer
5k views

What's the difference between refraction and glass shader?

I have been experimenting with refraction shader and glass shader (using cycles render) and i noticed that a sphere with refraction shader looks almost the same compared to a sphere that has glass ...
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0answers
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Difference between a fac output and a Color output

What is the difference between fac output and Color output in BLender? My understanding about fac is, it is grayscale information(devoid of any color). In which case it confuses me when people take a ...
7
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1answer
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How can I use vector mapping to control the Anisotropic shader?

Is it possible to use the Anisotropic shader with texture vector mapping, as with the other nodes? I don't see the "vector" input in that node... So there seems to be no way to plug the UV (or ...
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1answer
299 views

Uneven shading in render but not preview (Cycles)

I am working on an animation of a product in blender using the Cycles renderer. The preview looks good, but the render shows uneven shading in an area. The only reason I can figure for that area ...
4
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2answers
2k views

Why is this mirror object not reflecting light onto another surface properly?

I have a scene where the sun rays should be reflected from a mirror to create this sort of effect: The problem below was resolved, scroll down to EDIT. However, I can't get any light reflected from ...
1
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1answer
6k views

render only the shadows in Cycles

Is it possible to create a matte shadow material in Blender Cycles? For example, both 3DS Max and Maya have a preset material that only renders the shadow on the mesh. It is great for applying to ...
2
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1answer
718 views

Is it possible to set the vertex shader without overriding the fragment shader?

I'd like to make vertices of an object randomly move around a little. To do this, I created a vertex shader. I assigned the vertex shader to the object's material with ...
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0answers
102 views

Model shadow/texture issues

I am currently working with a model that I made, and it is being a huge pain when trying to render the animation of it. The problem is that the texture gets extremely disrupted when any light source ...
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2answers
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What exactly *is* a “closure”?

As I understand it, a "closure" is the thing passed out of those green dots on the ends of those magic black boxes known as "shaders": I've vaguely imagined that they somehow described a sort of "...
11
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1answer
2k 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 ...
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0answers
61 views

Is it possible to have a 2d element interacting with a 3d world?

I want to know if it possible to simulate an augmented reality situation in Blender without the elements negatively interact with one another. I already know about using the emission shader on a 2d ...
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2answers
1k views

Is there a way to manually control vertex/face normals to get a more consistent toon shader?

I watched this video about the art style of popular fighting game Guilty Gear Xrd, and something which really interested me was the method that the artists used to get rid of ugly automatic-normal ...
2
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1answer
396 views

Rendered glossy texture does not match preview

I have a problem with a texture/Shader. The Mesh was created from a bezier curve. Above is the texture preview. And below is the result once rendered. There is no gloss at all, It is just matte. ...
2
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2answers
3k 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. ...
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1answer
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What is the shortcut for attribute node? In Cycles Render, also.. (see below)

I need to know the call shortcut for the attribute node in cycles render please :) I don't see the property box that one of the people answered...
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2answers
834 views

Weird shading in my faces

I have used blender for some time and have never seen something like this, I tried: Changing normals; Flat/smooth shading; deleting the faces; making the faces planar, and I can't find the solution. ...
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1answer
42 views

Object doesnt look as it should in shading

I cant seem to figure out but my model looks al wierd and washed out. it should look like the left one but it doesnt and i cant seem to find anyone else who has this problem.
3
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1answer
288 views

Save Cycles Materials as Open Shading Language file

we currently work on a project, where we want to use the Open Shading Language to reuse shaders and materials in other programs/renderers (who also support OSL like Arnold) For that it would be great ...
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2answers
3k views

Object renders black

I've imported an .OBJ file to my scene and it looks good in viewport, but when I try to render with F12 it's completely black. Clearing custom split normals data (in object data panel) removes black ...
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0answers
180 views

Shading problem only when normal map is applied

I have a very odd problem. My model looks perfectly fine with diffuse map on it and in Substance Painter too, but when I put my normal map on it it shows dark polys. The normals are in the right ...
2
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2answers
358 views

Manipulate individual UV islands in Cycles

Is it possible to somehow use UV islands as a factor for things in Cycles? For example, I want to use a different procedural texture on each UV island, or factor between different shaders for each UV ...
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1answer
1k views

Is there a way to separate colors from chained mix rgb nodes?

I am creating a node group that I would like to be able to make 6- 8 individual colors available for the material. While it would be ideal, I am aware that color ramps cannot be used from outside of a ...
0
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1answer
98 views

Can a surface reflect in black and white?

So I have a gold glossy surface above a plane, and I want the plane to have a black and white reflection of the gold surface. I'm using Cycles Render and the latest version of Blender. Here's a ...
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0answers
119 views

Recreating Edge Split Algorithm

Does anyone have any insight to how Blender's edge-split algorithm works? I need hard lighting for an OpenGL project I'm working on that uses per-vertex normals to calculate shading, and I'd rather ...
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0answers
364 views

Anime rendering; ray shadows odd results

I've been trying to render anime style characters in blender's internal render using opengl rendering; I can get things to look okay as long as things don't have shadows, but as soon as I turn shadows ...
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1answer
748 views

Problem with Fresnel Artifacts in PBR Shader

I'm creating a PBR all-in-one Shader. it is suposed to function as a streamlined connection between substance/marmorset and blender, where u only have to connect the textures into the material inputs ...
27
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4answers
9k views

Blurring/Feathering a Procedural Pointiness Mask

I'm trying to create a procedural mask to affect the sharp edges of my model using the Pointiness output from the Geometry node, ...
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1answer
2k views

Smooth shading gets ignored in cycle render

While working on a Model I stumbled upon this issue: This is the first time I see this error and I couldn't find any immediate solution. I checked if there is any sort of modifier or condition on ...
6
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1answer
2k views

How to add dirt to a glass shader?

I am rendering an image of a grotty old looking light-bulb. I can make a decent clear glass material, but, not a perfect one. I simply cannot get the dirt textures to overlay properly. How can I add ...
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1answer
477 views

How to create Custom Multiple Image Import Script in Node Tree

I want to create a script that reads multiple image files and creates image texture nodes for them in Cycles default ShaderNodeTree. This script will be housed in it's own NodeTreeCategory called "...

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