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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1answer
162 views

Any way to simulate a material to look like the viewport?

I was wondering if there was anyway to get a material that looks like the matcap in eevee's viewport. That kind of gradient look that catches shadows really well
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0answers
173 views

Smooth shading faceted when using bump/normal

I noticed smooth round surfaces get faceted when I apply normal/bump map onto them, without normal/bump they are smooth. Does any one have a solution for this besides increasing subdivision? 1. ...
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1answer
1k views

What is the physical difference between the Subsurface Scattering and Translucent shaders?

Generally speaking, I know to use translucent for leaves and SSS for skin, but why is this? Physically speaking, how do these shaders refract/scatter rays differently? Why does translucent have no ...
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1answer
507 views

Character eyes are black

I made a pair of eyes for a character of mine that consists of two meshes. One that acts as the real eye with the iris and the pupil, and then a copy of that one but slightly different to represent a ...
1
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1answer
364 views

Slimy translucent material help?

I want to create a material that is transparent but also has a "wet" or slimy look, like the bug in MiB 1 or the demogorgon from Stranger Things. I don't know if you could achieve this with a ...
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1answer
1k views

How to make acrylic/plastic effect with shader?

I am studying texturization and found this reference image. I would like to know if anyone could help me replicate the material shown on this "rabbit-astronaut". I already tried to map using images ...
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0answers
126 views

First attempts with SSS - where is the nose?

I am trying to make the skin for my female mesh and watched some tutorials on Skin Shaders. I tried to rebuild YanSculpts Tutorial https://www.youtube.com/watch?v=ktsyL2Kp5bQ&t=388s and the result ...
3
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1answer
243 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 ?
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0answers
44 views

How to add the same animation node tree to multiple meshes (meshes need to have different image textures) [duplicate]

In short, I have a plane, with an image texture on it, which will act as a flower. My question is, since I need 21 different flowers, can I duplicate that first plane (flower), on which I already ...
2
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1answer
493 views

How would you approach a shader for a glittery eyeshadow

Something like this. Probably some kind of noise mask with some metallic, low roughness?
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224 views

How would you create this glass material in Cycles?

I am working on a project where I need this glass material that has frosted glass on the outside. I have tried numerous node setups but they all seem to look off. I have tried glass bsdf with just ...
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1answer
508 views

How to hide the reflection of an object in blender

I have a transparent sphere encasing a diffuse inner core with a cut out from one of its sides (shown in the attached photo). Is it possible to keep the outer material semi glossy to show reflections ...
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1answer
249 views

Ultra realistic excrement material needed

Hey I need a very realistic poop material for cycles, I already have the cracks and shape, but I need a material with the correct look. I'm looking for something like this: Any help is appreciated, ...
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0answers
283 views

Occlusion material (holdout) in Cycles

I am looking for a way to occlude one cycle´s material against another like when we setup the render passes from the passes property for the scene in a "holdout" mode. Think 2 spheres over a plane. ...
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4answers
7k views

Bump mapping vs Displacement (plus displacement nodes in Cycles)?

Learning Blender+Cycles (2.79b), I'm trying to experiment with vertex displacement and bump mapping. My understanding: bump mapping is to adjust face normals and create shadows/highlights suggesting (...
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0answers
35 views

Is it worth swapping to a faster shader for non-camera rays?

The old trick of using 'Light Path > Is Camera Ray' as the factor for a mix between the shader seen by the camera and a simpler 'fake' shader that is never directly seen (except maybe in reflections). ...
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0answers
160 views

How do I exclude an object from AO in Blender Cycles?

I have a scene where black text is on a gray surface. With AO, this makes the text are to read. I want to eliminate AO on the gray surface so I can see the black text, but keep it in other details ...
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1answer
161 views

How to make the ocean become increasingly dark?

I aldready have a ocean shader and it looks like that: but how can i make the ocean become increasingly dark like that "without" ocean modifier? : sorry for my english, and thanks for advice :)
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1answer
68 views

Screen one shader onto another?

I have two shaders. One with highlights and one without. Is there any way to make the highlight layer pure black and white, then screen (blending mode) that onto the other shader so that I only get ...
0
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1answer
315 views

bevel shader not appearing in 2.79 on Mac [duplicate]

I have seen tutorials showing the bevel shader in Blender 2.79b. I cannot get it to show up in the shader menu even after doing a fresh install of Blender. I wonder if it is a Mac issue. I am running ...
1
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1answer
10k views

Alpha Channel in Eevee?

Apologies in advance for the Eevee question... but!...now that the releases are getting more stable, I'm messing around with it and wondering if anyone has gotten an alpha channel/transparency mix ...
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1answer
125 views

Volumetric haze is showing through solid objects when 'stacked'

I have my whole scene contained in a big cube, and the cube's shader has both volume scatter and volume absorption (which are mixed with an add shader). So the whole scene has haze. Then, where ...
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1answer
201 views

OSL Script from External Source?

Sorry if this is a "duh" question, but I'd like to use a custom OSL shader, but I'd like it to be sourced from an objective location on my hard drive. How exactly would I go about this in the most ...
3
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1answer
693 views

How do you make an SSS texture (Using Principled BSDF) only affect part of a mesh? (Image/gif inside)

(Albedo texture on left and SSS texture on right just for reference) https://i.stack.imgur.com/veTGy.png I've been trying to figure out how to have an SSS shader apply only to certain parts of the ...
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0answers
179 views

Problem faced while using matcap in blender 2.79b

I faced some problems in Blender using Matcap. When I select different different textures in Blender Matcap, the texture doesn't change.
3
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3answers
384 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
2
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0answers
88 views

Real World Roughness Samples in Blender

TLDR: We've developed a method to measure a surface's microfacet distribution, and are looking for a way to integrate this in a Cycles shader. For more info, see this paper. Hi all, Together with a ...
2
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1answer
392 views

Cycles nodes: is it possible to get distance to nearest edge?

I want to create a procedural texture that will be based on the geometry of an object. How can I get distance to the nearest edge for the current pixel of an object in Cycles nodes? I hope it is ...
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2answers
249 views

Cycles nodes: is there a way to find coordinates change, derivative, direction?

I want to get a unique random value for every face using direction of mesh coordinates. Like a derivative, position change, a unit vector based on current face's vertices. (I guess, something similar ...
2
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1answer
6k views

how to produce a Silk/Satin material

I have two lamps, a plane with an emission shader and even world lighting turned on, why does my scene appear so grainy? I have turned up render samples, clamp indirect is now at 3. What can I do to ...
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1answer
144 views

Part of my object is black [duplicate]

I don't know how I did this. Can someone explain. Is this lighting? shading? why the extreme black and how do I fix this? Thank you. Cheers!
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1answer
582 views

Pebble shader in cycles

I need to make some pebbles for my scene. How do I get the realistic looking pebble shader in Cycles? This is what I am going for: And I have got this:
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0answers
3k views

Why does my normal map not work with the Principled BSDF shader?

Hey guys, I have a fairly simple problem that i simply can not get past. I've connected 3 image textures (Color, Gloss and Normal) to the Principled BSDF shader. The Base Color and the Gloss seem to ...
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1answer
430 views

How to bake using Principled + cycles under reasonable time? GPU + CPU = Instant crash

Here is the deal, I'm using principled shader to bake a simple object, it works is great but I've waited 36 Hours and it was at 70%. The object is a car with only 13K polys and I've separated the ...
2
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1answer
220 views

Can't make material Transparent?

I'm doing an outline effect in blender cycles using a displacement modifier, duplicate mesh, and the backface option on a geometry node. Here is a picture of my set up: The displaced duplicate mesh ...
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2answers
2k views

Toon Style Explosion

I want to make toon style Explosion similar to that which is given below: A simple setup for material would be helpful. References:
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0answers
63 views

Object Gradual Fade To Transparent

Does anyone know how to make an object gradually fade to transparent in a specific direction. An example would be a person walking through and invisible door. So as their foot enters it becomes ...
0
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1answer
113 views

Is there a way to utilize simple math operations for color correction?

For me the currently available (2.79) color modifiers have limited capabilities. To modify a HDR image which has RGB values beyond 0-1 (0-45 for eg.) I really miss an offset function which is ...
0
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1answer
549 views

Using two or more separate UV maps and textures on the same material and model

I joined two meshes together and now need to add a texture to them. The entire unwrapped mesh is currently on the head's texture: (right) You can make out the body's unwrapped mesh above the head's ...
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0answers
192 views

Translucency for leaves with the Principled BSDF [duplicate]

I was wondering, what is the correct way to set up a leaf shader using the principled shader and translucency? Using the sss part of the principled shader gave weird results with one-sided meshes, ...
2
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1answer
373 views

Can I only Render light that psses through an object?

In the image below I would like only the light that passes through the sphere, in this case the bright dot in the center, to be visible. Is there a way to set this up in cycles? Thanks, Tyler
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1answer
70 views

Trying to set transparency on the viewer Node

First time posting in blender but it's important. Thank you for your support. I have a model which have a Mix Shader with Glass and transparency shaders mixed, both with a texture as Color. When I ...
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1answer
1k views

Planetary/Atmospheric volumetric clouds

I created a planet in blender a while ago, and now i'm interested in adding volumetric clouds instead of using a 2D texture. I considered adding a bump node to my material, but then it would remove ...
2
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1answer
226 views

Using Python, how can I preset points in ShaderNode RGB Curves?

I have referred to https://blenderartists.org/t/how-to-modify-rgb-curve-nodes-in-compositor/503936 hoping the technique would be same or similar for shader nodes. I have also checked Is there a way ...
6
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2answers
3k views

Slime effect material

I know the normal + glossy effect but I want the yellow to red color effect by light. thanks this is what I got so far. It kinda looks like the picture but the sss is not emitting the yellow light. ...
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1answer
4k views

How to create car paint material? [duplicate]

so i am trying to learn texturing so that i can render my cars, but these car paint materials are pretty hard to make for a noob. I did some research and tried making this shader in cycles but failed ...
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0answers
23 views

Inverted Vertices / Shader problem? [duplicate]

It seems that the top half of my mesh might be inverted somehow. It has a weird shadow on it. Not sure what this problem is called. I'm new to Blender. Any advice on how to fix this?
2
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1answer
339 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 ...
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1answer
148 views

Microdisplacement skewed image

Hi, I´ve been trying to get a microdisplacement on a plane from a .jpg 8 bit and a 16 bit .png with a resulting skewed image. How do I fix that? Thanks.
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0answers
189 views

Faking HDRi Reflections with an orthographic camera

Is it possible to fake perspective reflections of a HRDi in a scene with an orthographic camera? As reflection rays are parallel on flat surfaces, every face of a glossy object has a uniform color ...

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