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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578 views

Additive Emission in Cycles [duplicate]

Question is how to create additive shader. If you need particles which just "add" light to a scene. Not render a surface but create emission. If color changes from yellow to red for example, the ...
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1answer
1k views

Is the ocean modifier better than the fluid simulation for making an ocean? [closed]

Is the ocean modifier better than the fluid simulation for making an ocean when it comes to visibility under the surface of the water, reflections and splashes in the water? Which one is better for ...
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1answer
97 views

How does the fac on Mix Shader work?

So if I plug in a black and white image to the fac of the mix shader node, what is happening? What's the difference between when A and B is connected to each socket and when A and B is switched to the ...
3
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1answer
133 views

How do I animate a smooth transition between all colours in the RGB spectrum?

I want to shade a lightbar. It should have a smooth RGB Transition like in this video at the beginning: https://www.youtube.com/watch?v=bBNohDeo8XI With a color ramp it would take to long to add ...
3
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1answer
465 views

Can't find the Shader/UVs tab

I have a very basic problem: I want to create a 3D-logo. Therefore I imported a svg from Inkscape an extruded it. I know, that I have to select it in Object Mode, go to Edit Mode and then unwrap it in ...
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2answers
297 views

noise texture Projecting outward from center point

While usinging shader nodes, I am trying to make a noise texture on a plane, start from the middle and project radially so when I shrink the necessary xyz, I can turn the noise into lines.
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2answers
973 views

How can I render objects with very shiny surfaces?

I am trying to render a kitchen sink / Faucet Here is another reference image of what I want What I have got so far is this Settings for World: I have used an environment map HDRI with 0 ...
3
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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
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1answer
1k views

Cycles special Water shader (Low Poly)

I made a low poly planet with mountains and water on it, and I am trying to achieve something like this : (Of course without the rocks in the space and the nice background) I tried several shader ...
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3answers
1k views

Import Toon Shaded Character to an outside program? [closed]

I made a character and added toon shading but I can't see it. After some research it seems that toon shading is only visible if you render the image with a camera in the blender scene. I want to ...
3
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1answer
191 views

Cycles Toon shader size effects diffuse direct value

Here are three monkeys lit by the same sun lamp. They have only a Toon Diffuse shader set to color of 0.2 value, and size of 0.8, 0.5, and 0.2 respectively. But it can clearly be seen that their lit ...
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2answers
108 views

Is MixRGB ALWAYS RGB calculated?

Hey guys I'm writing a Quizlet flashcard pack to help people learn and memorize how the various blending modes work within the mixRGB node. My question is, does mixRGB always handle color inputs as ...
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1answer
3k views

Edge Angle as Cycles Shader input

I am practicing with the creation of various procedurally generated materials and a unique problem has come up for me. I have looked at a number of tutorials on shader creation and have been ...
3
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2answers
404 views

Add a color input and output to OSL shader

I'm trying to wrap my head around making shaders but I have no real coding experience. I've tried looking for a solution to my problem but I haven't found anything. Maybe I'm not phrasing it right? ...
3
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1answer
2k views

Import GLSL-Shader into blender

I have a shader written in GLSL, I would like to import into Blender. I have already gathered, that I have to import it into BGE. Is it also possible for Cycles or BI (preferred)? In any case, how do ...
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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 ...
3
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1answer
54 views

how can i add emission (glow light) on logo

I am a new in blender and I have made this mobile device that have blue texture. And logo above it.But i cannot figure out that how to add light glow (emission) on logo.. Please guyz help me, this is ...
3
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1answer
118 views

My glass material isn't transparent in Eevee

When using Eevee, an object with a glass material (in this case: Principled BSDF, trasmission set to 1.0) doesn't seem like it can be looked through: it's completely opaque. See for instance the ...
3
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1answer
108 views

Cycles one side transparency

Is there a way to create a material that seems diffuse shader, but can see lights trough it when lights are behind like E.V.E. in Wall-e? I have tried diffuse mixed with gloss and both mixed add to ...
3
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1answer
694 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/...
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3answers
270 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
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2answers
250 views

How to add some blur inside a glass sphere and keep the outside sharp & reflective?

How to add some blur inside a glass sphere and keep the outside sharp & reflective? Blur may not be the right descriptive because there is also some distortion. I'd like to keep it one mesh ...
3
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1answer
1k views

How to control specular/glossyness of glass shader in cycles

I am trying to control the amount glossyness/specular (not roughness) of glass but not able to find any option in cycles. I have tried both the traditional glass shader and the new Principled BSDF ...
3
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1answer
578 views

OSL Script node: Slider with value range between 0 and 1 (like Fac)

I am currently writing my own shader using a Scriptnode in Blender, and I cannot figure out how to limit the range of a slider between 0 and 1. I basically want something like the "Fac" slider in a ...
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2answers
3k views

Normalized z-depth shader (based on the cycles camera data node)

I'm trying to create a shader that displays the normalized (0 to 1) camera Z-dpeth on top of the viewed object. Yeah, I know I can easily do this in post with the normalize node if I render out the z ...
3
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2answers
475 views

Setting material node properties across a large number of objects?

I'm using a Python script to generate a star-field using data from ~9k of the brightest stars (data is taken from here) Spheres are generated equidistant from the camera (eventually these will be ...
3
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1answer
2k views

Light path - Transparent depth issue

I made an earth object and gave it a material including the usage of the new input of the "Light path" node "Transparent depth" which makes the back faces invisible. However, when an object has ...
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1answer
2k views

Ambient Occlusion node in EEVEE not working

So I am using Blender 2.8, and I cannot seem to get the Ambient Occlusion node to work in EEVEE. I realize it is in beta, so it could just be a bug in 2.8, but I have seen other people use ambient ...
3
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1answer
657 views

Use color ramp to mix materials

I'm trying to set up a material that shades the topography of a spherical model of the Earth based on distance to the center of the Earth. Setting up a ColorRamp based on distance from the center of ...
3
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1answer
143 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
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1answer
6k views

Blender 2.8 - Object index pass in Eevee

I need to isolate filters on some objects in the compositor and Blender 2.8 does not have the options to setup object/material passes in the View Layers. Is there anyway to achieve this in Blender 2.8 ...
3
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1answer
197 views

Glass shader has black parts

i'm trying to render this glass material but i have these black parts all over the model. Any idea what could be the cause of this ?
3
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1answer
142 views

Shader: Random cubic color

I'm struggling with how can I create a random color between some range. To explain better I have this: But I want these each cube has one random color. My code: ...
3
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1answer
320 views

OSL script node : detect if two object collides and output a bool

I would like to have a script node that would output a boolean depending of if two objects are intersecting or not. The goals is to use it in a mix shader and to hide / show my object depending of ...
3
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1answer
1k views

How to combine the Bevel shader with displacement and bump textures

Edit: the displacement node has been changed in more recent builds, before it was used as a bump effect, now it displaces the geometry by default so you can't reproduce my issue in this post. I want ...
3
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1answer
816 views

Glass shader blocks light?

I know a commonly duplicated question is "Why is light not passing through glass?" or "Why does my glass shader ignore lighting?", But mine's a bit different. The Problem I 3D modeled a type of ...
3
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1answer
3k views

How to make a real mirror on blender with cycle engine [duplicate]

I need to add a mirror object in Blender. I'm looking for the existing objects, but can not find any object. I am wondering how I can add such an object.
3
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1answer
3k views

Procedural texture is stretching

I have this procedural texture which creates a little camouflage pattern, but it appears to be stretching on the hull of the plane. Here is the node setup, super simple. And here is the issue. You ...
3
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1answer
406 views

Making a shader that would “fill” an open mesh?

I made a material that mixes two shaders using an empty which acts like a kind of mask for those shaders. If I move my empty up, there will be more blue shader. If I move it down, there will be more ...
3
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1answer
200 views

What compute device does the material preview use to render?

Recently I have been working on a material library, and when I am working on a complex shader, the preview is updating several times a second. I find that after a while of intense editing and tweaking,...
3
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1answer
67 views

Bevel Shader with a Gradient Texture

I've been trying to recreate Gesy Bekeyei's clever trick (scroll below to see what I'm referring to) in using a black and white gradient texture to influence the Bevel Shader's radius to create custom ...
3
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1answer
145 views

Black reflections in cloudy glossy acrylic floor material

Okay so I'm building out my scene and before I know it there's these strange reflections in my floor. So the way my scene is setup is I have three walls, all of them are the same semi-transparent ...
3
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1answer
2k views

Material appearing as bright white or white on some objects while using Eevee Render in 2.8

I have a scene with 7 different materials and 405 objects. One of the materials is displayed as I want it to for some object, while other objects it is applied to behave either like a bright white ...
3
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1answer
64 views

checker in 4 colors

Could someone tell me how I can create a checker in 4 colors in all faces? I have already made this: ...
3
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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. ...
3
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2answers
475 views

Glossy Shader not what I need it to be

I am trying to make a die that looks glossy (as most dice do), but using the glossy shader in the way I did fades out the texture underneath. The pips turn into a grayish metallic color, and the whole ...
3
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1answer
184 views

Removing black-ish tint in beveled area of clear glass

I can not seem to gt rid of the really annoying BLACK that always seems to show up in Blender Cycles when rendering glass. I've even used a transparent shader to NO avail.
3
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1answer
564 views

What elements go into a good material testing scene

I've been searching a bit for the perfect material testing scene, so I'm curious, what are some of the most important elements in a material testing scene?
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1answer
4k views

Why is my mesh inversed when Imported to Unity?

So I modeled this sword and all the parts were separate meshes. I used a mirror modifier when I was modeling and then I applied the modifier when I was done to make the parts into solid meshes. Put a ...
3
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1answer
502 views

Override final pixel color in a Cycles/OSL shader? [duplicate]

In the Renderman Shading Language, the whole purpose of a shader is to determine the final pixel color for each fragment. You have complete control over what the shader does and what the final color ...

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