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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3answers
289 views

Change color by radius

So I am currently working on a CAD rendering and decided to give Blender a try instead of Keyshot. One part is a black ring with engraved writing (silver/white) on it (in the mesh since it is a stl ...
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0answers
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Save just the Material part of a .blend file

Can you just save parts of a .blend file? And link them in later? thanks
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1answer
29 views

Preventing text or object from reflecting in scene (blend file included)

I have an object / text that reflects in a scene is there a way to have the text / object be excluded from creating reflections onto other objects? I would like the text to look "normal" and not have ...
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0answers
15 views

How to Export 3D Model with current materials [duplicate]

How would I go about exporting my 3D model and including the shaders I've made and have applied to the objects? Edit: I've spent a lot of time working on a 3D model which uses shaders for materials, ...
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2answers
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How can I make a Driver expression access image RNA data through the image texture node?

So still trying to automate some processes. I am trying to use drivers to access information about an image (pixel x/y size and DPI) The location is simple bpy.data.materials['Fabric'].node_tree....
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1answer
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Problems with compositing and Shading settings

There is a problem setting up the shadow of my CGI model that I want to add to the camera image on the compositing screen. I can’t intervene in the shadows. In the tutorial I watched (https://youtu.be/...
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1answer
49 views

Procedurally Generated Texture Scaling based on Surface Curve

I've got a fairly simple character that I'm texturing procedurally, and my question is this: Is there a way to tell the Voronoi texture base that I'm using to have variable scale based on how flat/...
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1answer
29 views

Glass material with darker areas Cycles

I'm modelling a nutella pot, however I have a rendering problem. As you can see I have a dark spot around the glass pot, my shading render is very simple though : Also, I made the nutella model and ...
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0answers
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How to Hand paint shadows?

Like on this video, I want to know how is it possible to hand paint shadows that will work for every angle of the model, I am creating an anime stylized model and I want to adjust the shadows to work ...
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1answer
20 views

Texture aspect ratio independant of scene aspect ratio

I'm experimenting with making a shader that looks like linework and colouring on paper. As part of this I'm trying to apply a repeating texture map to give the base paper look to everything in my ...
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VFX Shot: Dolly into blue screen picture frame that reflects

Hey Blender community, First of all. You are clearly a lovely bunch. I just dove into making my Donut, as guided by Andrew’s great tutorial series, and was delighted at what I learned. I decided I ...
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1answer
28 views

Eevee bloom effect covers my texture as camera gets further away from the object

I have a star mesh that has a Texture on it for the mouth, which is just a black curve for a smile. The star's material has a translucent shader and the star has a light inside it, creating a glow ...
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1answer
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Alpha Layer + Transparency Shader Glitch in Eevee

I am following the CG Geek tutorial in which he details modeling a tree in one minute. (https://youtu.be/y7PdiGXbrD0) I'm running into problems when it comes to shading. When I add a transparent ...
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0answers
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Blender 2.8 - Why does the Waves Surface Type not have an output panel?

We need the wave data generated on a Dynamic Paint canvas as a data layer in Blender 2.8, but realized that there is no Output panel available when Waves is selected as the Dynamic Paint Surface Type. ...
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Preview in viewport using OpenGL shader

I am trying to apply a custom shader (OpenGL, but if that's not possible I can learn OSL) to a STL. I will not use any lights, cameras, I'm not going to render it eventually. I would like to have the ...
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1answer
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Can I create a shader that uses the distance to the first opaque object behind it?

I'd like to create a 'haze' shader, which is like a translucent shader but which attenuates the translucency depending on the depth of the scene behind it. If this were a game engine, I would do it ...
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1answer
21 views

2.8 Add multiple image texture nodes simultaneously

I stopped using Blender for a while right when 2.8 rolled out. Trying to get back into it, I'm noticing that it seems to have removed the "import multiple image textures" option in the shader editor, ...
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0answers
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Exporting OBJs that save alpha information properly, so they look normal when imported into eevee

When I first tried exporting my model to OBJ, then importing it into another document, the alpha had a weird staircasing effect: I realized this is because it was still using the alpha from the png, ...
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2answers
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Pixelation on my UV image text

I've added my UV texture, and I can see white pixelated borders around my red text. What's causing this? also below are the nodes I'm using, The text is supposedly going onto a screen surface. which ...
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1answer
56 views

What problem is being displayed in this shader?

What phenomenon is causing this waffle-patterning in this transparent texture? I want to research what is happening, but don't know what direction to go. Originally, I started off using a principled ...
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0answers
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How much would Blender benefit from multiple core / threads?

I'm currently building a PC for game development (and regular gaming of course :P) and I have all of my parts chosen (Radeon RX 580, 16gb Corsair vengeance, 256gb m.2, 1 TB HDD, MSI B450 Gaming Plus) ...
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0answers
27 views

Weird gray reflection on the liquid

I'm relatively new to 3D modelling, I'm doing the BlenderGuru's Donut tutorial, I had to mess around with render properties, typically with the light paths' max bounces amount and the transmission, ...
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0answers
11 views

Final object rendered image is white, during render and in pose mode is normal

I've only used Blender to pose objects in Blender files I have found online. I received this file from an artist who is more knowledgeable about shading and customizing. I posed it and added another ...
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0answers
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How Can I Achieve That PSX Retro Look?

I’ve been doing research for a while to do that PS1 retro graphic style look. But there are only basic tips for starters. (Low resolution, low polygons etc…) So I’m not looking for “wobbly” vertex ...
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2answers
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Bevel shader issue

I recently found out about the bevel shader, but when I tried it, it doesn't seem to work. It appears to give me a mix between beveled and not beveled. See attached image. Anyone know what I'm doing ...
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0answers
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Weird shading on a sharp object

I'm trying to make an object that would keep some of the edges sharp, but it's causing a weird shading on the corners. How do I fix that, if I want to keep the bottom, the top and the side sharp (they'...
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1answer
34 views

Create Indian dish 'idli' texture and rough edges?

This is the image of the dish I am trying to make in Blender, I am having hard time with the texture and randomness of it as all the pores are not exactly circular. I also needed help with the rough ...
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0answers
18 views

Help with grain of sand shading

I'm in need of help. I'm trying to made a single grain of sand in cycles following this reference: I can see that the material needs to be sorta like glass, but with a lot of irregularities in its ...
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1answer
25 views

Cycles renders object deep purple

I've been following this tutorial (using blender 2.8). At around 14:15 a sphere is created and a texture with some modifiers wrapped onto it; this is what I get when following the tutorial exactly: ...
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0answers
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Shader nodes not shown during render

i have a problem. I try to export my object with it's material. I create a material as called lion-material. Material view works well: But when I export it to in Unity or when I press F12 to get ...
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2answers
94 views

Control a ColorRamp node from outside a node group

I have a ColorRamp node inside of a node group and I would like to have a group input which controls the "Pos" value of the white colour, but there doesn't seem to be a good way to do it. Since I'm ...
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0answers
14 views

Reflective surface not reflecting after certain angle

I am making a low poly headlights for a car and I have made the inside of the lights from reflective surface (mixed ~90% glossy with diffuse and little bit of glass) but from a certain angle it's not ...
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1answer
24 views

What should I connect with the Emission notch in the Principle PSDF (Blender 2.8)

I'm trying to use an Emission map in the Shader Editor. I added a texture and connected it to the Emission node and then with the principle BSDF, but the red line appeared showing that there's ...
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0answers
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OSL: HalfVector Question

EDIT: I pasted a copy of the code for convenience. I have a question about the halfway vector between the camera and light vectors giving odd results in my shader. I included screenshots of my OSL ...
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0answers
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Material nodes don't show unless I duplicate object [duplicate]

https://www.dropbox.com/s/owo4yfxuyfdvwfa/BlenderHelp.mp4?dl=0 This is my situation. I troubleshooted for a long time and could find anything online, so I'd love help from you all. I'm really new so ...
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0answers
15 views

Creating a shape from a 4d function?

I am very new to Blender, but have experience with GLSL. I want to be able to create shapes using a function that takes in all locations in 3D space, and returns 1, to fill it in, 0, to leave empty (...
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0answers
36 views

Material of an object (nodes) wont load unless I duplicate the object

Here is a screen recording showing the issue I have: https://www.dropbox.com/s/owo4yfxuyfdvwfa/BlenderHelp.mp4?dl=0 This is my situation. I troubleshot for a long time and could find anything online, ...
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0answers
25 views

Jagged black parts of mesh only at certain angles

I'm not sure how to deal with this issue I'm facing. I'm quite new but I've researched this issue and I've tried deleting doubles (merge by distance) and I've tried to recalculate normals but none of ...
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2answers
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Why is my texture stretched over my model?

I'm following this tutorial to create a building. And am facing some problems with shading/ texturing. The tutorial is for Blender 2.7x and I'm using 2.8a. If you look at the screenshots below, you'll ...
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1answer
63 views

How to project an image through the lens?

I have an image (on the top in printscreen 1), the lens, and the white plane (screen) under the lens. I expect to see projection of the image, I change position of the lens - nothing matters, the ...
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1answer
29 views

How to set the parameters of a texture present in the shader editor to the rhythm of music

I wish I could create a texture that comes alive by lighting up and distorting to the rhythm of a song of my choice; for example by connecting parameters relating to the scale, rotations or precisely ...
2
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1answer
23 views

How can I simply map a procedural gradient from the equator to the poles of a sphere?

I am struggling with something in the shader node editor that I thought should be rather simple, but apparently isn't. I want to map a linear gradient from the equator of a sphere towards the poles (...
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1answer
72 views

Radial vector displacement

I'm struggle with vector displacement shader. I'm trying to do something like reverse cone but I can't figure out how to add radial direction. I would like to use RGB curves like screw (lathe) ...
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1answer
63 views

Create animated textures in time with the music in blender 2.81

Is it possible to create an animated texture to the rhythm of music, whether they are animations of lights or texture evolutions, which follow the musical rhythm? I have seen several tutorials on this,...
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1answer
27 views

Create and save preset nodes in the 2.81 blender, for example for material and texture

I would like to ask you how you can save settings related for example to texture materials and various procedures carried out with nodes in the shading editor in order to always find them ready for ...
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1answer
22 views

Normal Baking Showing Yellow

I have a lightsaber hilt that I'm trying to bake. I made a low poly mesh first, then I added a subdivision surface modifier to my low poly mesh to make a high poly version. Because I added the ...
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1answer
28 views

how to fix normal of a shader after scaling with a factor of -1

I am making a door made of two sliding panels (I have simply made one panel, duplicated it and scaled it by -1 to make the second one) As you can see, the flipped one get a weird color, I guess it is ...
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0answers
27 views

When I apply a material objects loses self shadow

When I apply a material in Blender the objects lose self shadow. Not the shadow it casts but on its back faces, if that makes sense.
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1answer
40 views

Blender 2.82 - Lighting glitching out during render?

this is my first time doing this because I can't seem to find the answer anywhere. Basically, I'm trying to make a scene with the freestyle mode on it. I also made the colour shade on the model look ...
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0answers
37 views

Is it possible to code a new Material Node?

So, I haven't got a clear answer but I suspect is No. I want to create a new Image Texture Node with additional functions (Automatic scaling based on Dpi, re-position texture, switch UV map, etc.... ...

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