Questions tagged [cycles-render-engine]

Cycles is a ray tracing render engine that can be used to achieve photo realistic results in Blender. It was introduced officially in 2.61. Use this tag for any Cycles related posts.

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2 answers
121 views

Animated mesh is glitching in cycles 3.5

I never encountered this problem before but on two different projects some armature animated meshes start glitching (weird lines) on random frames in the render (not the viewport), as you can see on ...
0 votes
1 answer
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Render just shows a black square? Yet Another "I Can't Render Post"

I've read through a bunch of similar posts and tried a lot of potential fixes for enabling to rendered object and lighting missteps but cannot seem to resolve the issue. It seems to render with eevee ...
0 votes
2 answers
719 views

Final Render is glitchy and not what I see in Camera Viewport

I'm a noob here so please be easy on me. I've searched around the forums with no answers to my problem that I could find. I've spent quite a long time (because I'm a noob) getting this to look the way ...
0 votes
1 answer
4k views

CPU temperature high when rendering with the GPU

I tested a cycles render in 2.8 and my cpu temps were really high like 90 degrees high. I then tested a cycles render with my GPU instead of the CPU, although my GPU temps remained low the CPU temps ...
9 votes
4 answers
14k views

How to render a scene faster in Cycles?

I have a scene of an office. It has chairs, tables, computers, and so on. I would like to know how I can render this scene faster as I am planning to make animation inside the office and don't want ...
0 votes
1 answer
19 views

Render Unlit fog transparent for a logo

I have a problem with rendering a logo which consists of two main parts : Front half of the logo is a rather normal solid set of objects creating my font. Back half of the logo is a slightly smaller ...
0 votes
0 answers
15 views

Blender hair particles keep changing during Cycles render

I have an animal model that uses Blender's built-in hair particle as fur, then I noticed if I didn't have persistent data turned on then the particles would just keep changing positions on the model's ...
3 votes
2 answers
388 views

Anisotropic effect doesn't work (blender 4.0)

I faced with the problem that anisotropic effect doesn't applies neither using eevee renderer, nor cycles. Could you help me? File is attached
0 votes
2 answers
4k views

Hair particles not appearing in cycles mode

I have some hair that I've created in one of my projects. At some point, somewhere, I must have pressed a hotkey by accident, because now none of the hair is rendering in Cycles. It fails to appear in ...
0 votes
1 answer
2k views

Texture stretching at edge even though UV map says it's fine

Why is this happening and how do I fix it? I'm still new and following this anvil tutorial but the texture is stretching over one edge and also sort of looks like I've put a seam where I haven't. It'...
0 votes
1 answer
443 views

Material is black at edges when rendered

Some areas of the PBR textures+Principled shader material that I used appear black when rendered. This only happens from some angles. I tried recalculating normals, merging by distance but to no avail....
30 votes
2 answers
16k views

Difference between Add Shader and Mix Shader?

What's the difference between Add Shader and Mix Shader nodes with the Cycles rendering engine? I know that Mix Shader gives you more control over the material ratio, of course, but are there any ...
1 vote
0 answers
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why is their black shading on my model from the displacement map?

these textures are exported from substance painter with opengl displacement and bump is on changing the midlevel less or more than .500 inflates the mesh changing the scale doesn't affect the black ...
0 votes
0 answers
18 views

How to make liquid bubbles material like this in blender?

How to make the liquid bubbles like this in blender
1 vote
1 answer
307 views

Shape weird in Cycles rendered

I have made a condominium on blender, however the Cycles rendered image became something wrong. Eevee render is fine. Could you advise what is wrong with my Cycles setting? Thanks, First pic: Eevee ...
0 votes
1 answer
31 views

Blender keeps crashing when I try to render animation

I have a scene I am trying to render, but Blender immediately crashes after clicking the render animation button. I have tried decreasing the resolution, switching from Cycles to Eevee, and lowering ...
-1 votes
0 answers
9 views

Scene only renders 0-10 frames and then crashes - tried on multiple different PCs and configurations of hardware - project inside - please help :) [duplicate]

Got a RTX 4070 Super to try get this project going.. doesn't work, still crashes after a few frames. We also tried to reduce the sample size from 250 to 50 and it still doesn't work. Also tried to ...
4 votes
1 answer
427 views

How to create a custom voronoi diagram with cycles nodes?

I've been looking for a way to create my own Voronoi diagram using cycles nodes, I've seen scripts that do just that but I wanted to create it using just math nodes within the Shader Editor, besides I ...
0 votes
0 answers
17 views

water separates into small droplets

I'm doing a project where a glass is tipped over and the pan pours out of it. I want to make it as similar as possible, but at a certain point the water just starts to separate into small drops and it ...
0 votes
0 answers
27 views

Textures upside down in material preview, correct in Cylcles [closed]

I'm setting up a scene with houses along a street. For some reason some of the houses are upside down in material preview and correct in cycles - does anyone have an explanation for that? Regards ...
0 votes
0 answers
14 views

Render issues on AMD Graphics card [closed]

When I switch my viewport to rendered mode I get an error message, and it says something with the AMD HIP with Radeon RX 6600. (See Screenshot). And here is what it says in text: ...
0 votes
1 answer
445 views

Cycles my image is black and blue, but EEVEE in normal color

When I render in Cycles my image is black and blue, but if I render EEVEE in the color is normal. What is the reason? Output RGB. I use Blender3.0
0 votes
2 answers
59 views

Transparent Render Trouble Blender 3.2

I have a preloaded scene which is causing me some grief. I need to achieve a single PNG output render, which contains the object rendered, and the shadows cast, but NO BACKGROUND (transparent ...
0 votes
1 answer
254 views

When I turn on cycle render, object turns all white w/ no color, any help? (ver 2.79)

I don't know what to do. I'm really new.
1 vote
1 answer
17 views

I can't seem to get my texture(UV?) to scale for my desired effect without the texture warping

I'm trying to texture an arcade cabinet with an 80's style minimalist neon line art (I'm not a good artist so my lines are terrible). When I try to resize the UV or anything else to get my texture ...
2 votes
1 answer
211 views

Planes showing up in viewport but not render

I'm making a bread tower and I'm using emission planes for the light. For some reason only on the second row some of the planes don't show up in the render but do in the viewport: viewport: render: ...
3 votes
1 answer
2k views

Can I use Blender on Intel HD 530 dedicating an Nvidia GPU to Cycles?

I'm trying to specify the build for a new PC, my current one is 5 years old and starting to show its age. It's going to be a multi-use machine for Gaming, Virtualisation, Coding, Blender and possibly ...
0 votes
1 answer
357 views

How can I convert data from camera data node(view distance) into a file output(image or CSV or anything)?

I am trying to extract the location(x,y,z) of the objects from the camera in my scene(highway scene -autobahn). Note: I have imported the .obj file as my scene (obtained from elsewhere, not created by ...
0 votes
0 answers
24 views

Blender 4.0.2 crash on Debian Testing [closed]

I don't know if it is the right place to ask. If not, please point me to the right one. I have Blender 4.0.2 installed from the Debian testing repositories. Opening a blend file, when I try to go to ...
0 votes
1 answer
32 views

Separate Toon Glossy from Toon Diffuse

I'm trying to make a simple Toon material with a Diffuse and a Glossy component. My problem is that the glossy part affects the diffuse part and makes it lighter. I would like them to be separate and ...
0 votes
1 answer
15 views

Cycles: Light bounces differently on a material for each frame

GIF of my animated object I don't understand why my light looks so bad. I tried merging overlapping vertexes, it removed around 300 but the problem was not fixed. Is this a problem with SSS, or with ...
0 votes
0 answers
104 views

How do I make a Minecraft render similar to the graphics from trailers/teasers for updates?

Actually, I want to make the appearance of my renders close to what I presented in the pictures, I will even attach those works that I have already been able to do and which look as close as possible ...
0 votes
0 answers
17 views

How come the wiggles 2 addon work well in eevee but not cycles?

As I assign certain bones to wiggle, in eevee, the animation is pretty smooth and flawless. In cycles however, the wiggle bones twitch badly... I find it really odd as to what a render engine that is ...
9 votes
2 answers
41k views

How to remove black color and use as transparent

I have image which as black background and i want to remove the black background and use the image as transparent only color smoke. Image
2 votes
1 answer
54 views

How is Ray Visibility > Diffuse different from Is Diffuse Ray?

I created a Cube, and then a small Plane above it with an Emission shader. In Cycles, the plane casts light onto the Cube. If I disable the Visibility > Ray Visibility > Diffuse property for ...
0 votes
1 answer
574 views

How do I render transparency with Cycles/Clo3d

I have been stuck with this issue for some time. I use an object as hair that I export from blender into Clo to render. Basically, the object has parts of its texture that is transparent and I can't ...
1 vote
1 answer
35 views

How to remove unwanted artifacts at borders of Cycles-rendered images?

I'm tried rendering cubic skybox with a procedural Sky Texture in Blender via Cycles and unexpectedly encountered artifacts at boundaries of rendered square images (which a skybox is then assembled in ...
3 votes
1 answer
1k views

Is it possible to bake multiple emission materials to one single texture?

I am currently trying to export a Material ID texture to use with Quixel, however I have been unable to bake the material colors to one single texture as all the colors are a different material on the ...
1 vote
1 answer
434 views

How to clip a material and give the illusion that it is 'solid' or 'filled' with Cycles?

I am using a combination of Cycles material shaders to perform a "clipping" view for a geologic cross-section. The answers to the following question explain very well how to achieve the cut-away view....
0 votes
1 answer
425 views

White Image appearing grey when saved as RGBA

I have a bit of a problem with my blender project. I need to render this as a transparent animation, so I'm using RGBA on PNGs The issue is that, whenever I save the white image as RGBA, it appears ...
0 votes
1 answer
451 views

Dark, Unwanted Shadows Between 'leaves' when Rendering in Cycles

I am hoping someone can help me with this situation. I am very new to rendering and texturing in blender and have not so surprisingly come across an issue that is preventing further progress. I am ...
1 vote
0 answers
151 views

How is IsShadowRay used in IAP_SHADELESS?

I am trying to understand the IAP_SHADELESS node group created by the Import Images as Planes addon for shadeless materials. It looks like this (Light Path Node docs, Ray Type docs) This switches ...
0 votes
0 answers
15 views

Cycles GPU render duration estimate is 7h before restarting computer and 4 mins after

I'm having trouble for past few months with rendering. To adress the issue right, I have a scene that I'm able to render in 4 minutes (Cycles, 400 samples). But as I keep using the computer, like ...
0 votes
0 answers
25 views

Cycles and Eevee faceting material in render previews?

I'm trying to render some materials but when i turn up the metal while the objects have normal information the faces of the objects facet and act as though they have flat normals? I've smooth the ...
0 votes
2 answers
2k views

Blender crashes during normals bake

my blender crashes with out any warning message while baking high poly on low poly normals map in cycles. Any way to make it work? My hardware: CPU: Intel(R) Core(TM) i5-8600K CPU @ 4.3 GHz 6 ...
0 votes
0 answers
47 views

Render viewport material looks better than rendered

So I'm going for this stylized anime kind of look. The problem is I prefer how it looks in the viewport not the rendered image version. The Material looks different. Im using cycles and dont want to ...
0 votes
1 answer
38 views

The initial render takes 5 days, but the next take 2 minutes? Why?

Okay, I have been living with this problem for a long time, and it's no big deal. But the problem is when I click render, the initial render is estimated to take 5 hours to 5 days, and I'm pretty sure ...
1 vote
1 answer
945 views

Moving Videos on Green Screen

(This is in blender cycles.) So I have a tank animation with a green backdrop and on that green backdrop I put a road so it looks like the tank is moving on the road. But the video clip of the tank is ...
0 votes
2 answers
1k views

128 samples with node denoiser animation still flickering

I'm trying to do an animation but even if I doubled the samples my video is flickering, in another topic they suggest me to increase the samples, so I moved from 64 to 128 samples but the result is ...
2 votes
3 answers
8k views

Denoising Animations in Cycles

I've made a simple animation in blender 2.81a and am now trying to render it. My system specs: CPU i7-6500U; GPU Nvidia Geforce GTX 950M; RAM 16gb DDR4 So far, I've done two test renders (both in ...

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