Questions tagged [cycles]

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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29 views

Object invisible during render (Blender v2.81) [duplicate]

So, I'm new to Blender and I'm following a tutorial. I'm making a doughnut and everything looks fine until I decide to see how it looks when I render it. I set the render engine to Cycles and press ...
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Blender quiting during render

I have 32 GB ram and a rtx 2070 with 8gb vram, and am working with a 10 MB file. I am rendering a 1080X1080 at 50% and 240 samples with dnoise, and blender still quits on me during the render. It just ...
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Render graininess

I have been making a opal rind in blender the past few days for my mom as a screensaver. I've been running in blender and I have finished the ring. The only problem is that it is grainy. I have ...
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1answer
24 views

Having an issue with textures and UV mapping

So I have been following this video in order to UV map my Arcade Box. https://www.youtube.com/watch?v=scPSP_U858k I manage to unwrap and make sure nothing is stretched out as shown. Now I try to put ...
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1answer
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How to render an image with holdout material in Cycles 2.8? [duplicate]

thats almost litterally the question asked here but these don't seem to be working with 2.80 Can Blender render pngs with the background transparent? i have PNG, Rgba, 8bit, 15% compression and the ...
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Texture doesn't appear in cycles render

I'm new to blender, so I'm following a tutorial in order to create a landscape, but I'm encountering a problem: the ground texture doesn't show up when I want to do a render (as you can see in this ...
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1answer
34 views

Blender filter 2D in scene

There are GLSL scene filters in the Blender game engine (2.79 and before), that cause the scene to look a certain way. I.e. laplacian filter, blur effect, and many others. Is there any way I can apply ...
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Blender rendering problem - blurry and semi-transparent frame

I'm new to Blender and I have a little problem with rendering. While I'm rendering my frame sequence via camera that is animated using tracking data from Nuke, there are few frames that are semi-...
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Blender texture baking?? Can we bake blender cycle material into texture with bump included

Blender texture baking?? Can we bake blender cycle material into texture with bump included.... Or Anybody please explain how to export from blender(cycles) to unity with material
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3answers
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Light comes out much brighter when rendering?

I want the fire in the upper pillar to look like it does in the unrendered image, but as you can see on the pic it's just super bright. I'm rendering in cycles, and the fire is a material I downloaded....
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When I want to render everything is dark, but when viewing everything is fine

When I want to render everything is dark, but when viewing everything is fine: I don't know how to fix this.
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Foggy lake - why is the fog not reflected by the water?

I'm trying to render a foggy lake scene (Blender 2.8 with Cycles). The entire scene is placed inside a cube with a volume scatter material, the lake is just a glossy plane. The lighting comes from a ...
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2answers
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Problem with planes intersecting in veiwport

Using Cycles in Material Preview mode and planes that intersect each other display oddly - one plane displays fully and ignores the fact part of the other plane should be showing. Better explained in ...
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Blender 2.81 viewport laggy on 2018 Mac mini

I switched to Blender not too long ago and am really enjoying it! I just updated to 2.81 which is causing some major lag when viewing a scene (Cycles). The cursor starts to slow down and I can't ...
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Blender Object Glowing in Dark with no Emission Shader?

For some reason an object in my scene glows in the dark no matter what I do (including removing all its materials) any suggestions? [EDIT] Here's what happens when the materials are removed:
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1answer
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how to show reflection of a different object in cycles

I have a mirror and an object in front of it. I want to hide the reflection of that object and show instead a reflection in the mirror of another object hidden in that scene,is that possible?
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1answer
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Creating a emission plane and hiding it in Blender 2.81

How do I create emission material and then hide the plane that emits the light in Blender 2.81?
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Black artifacts on plane with procedural displacement

I'm trying out the procedural displacement in 2.8 with Cycles following this tutorial. The object has 100 subdivisions in addition to a SubSurf modifier, and one material with two shaders separated to ...
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2answers
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How can I simulate blocky smoke?

I'm trying to make an animation of blocky smoke, as if simulated in a grid like cube pattern, so when looking at it, it would look as if it was made out of smooth, cubic, Legos or, Minecraft blocks. ...
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1answer
30 views

Hybrid rendering bug?

While using the official Blender 2.81 release for the first time (the last time I used Blender 2.81, it was still in Beta) I encountered a strange phenomenon while hybrid rendering in Cycles. If I ...
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1answer
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Objects appear lit even if there is no light source

I'm working on a render and every time I render it as an image, using cycles, it's all lit up (which I don't want). As you can see in the screenshot, the image is bright even without light sources! ...
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Has anyone managed to GPU cycles render with HD7770 in Debian or another disro?

HD7770 is mid-Range, southern island, Cape Verde XT, GCN 1. It is an old card according to Blender thus not eligible for GPU cycles rendering. Specific instructions are needed to get this working not ...
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1answer
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Why is the Cycles render of my worn-edge material different from the viewport?

I'm trying to figure out edge wear with nodes and in the viewport I think it looks good. Once it renders it's completely different for whatever reason: the worn area appears to be wider. I'm ...
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1answer
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How to install Intel Open Image Denoiser node on Blender 2.79

I'm using Blender 2.79 and Cycles Render. And I'm rendering on 2.81 on Cycles Render with Intel denoiser, but 2.81 crashes. Please help me to use this denoiser on 2.79. Help me to install Intel ...
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Plexus animate color transition

I followed this tutorial to make a plexus. https://www.youtube.com/watch?v=kdqQ3nba4-Q Now, I am trying to animate a color transition from left to right. This is the closest tutorial I can find. ...
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v2.81.16 cycles; render shows nothing, finishes in .01 ms [duplicate]

Thanks in advance - I have a physics scene using cycles that I've been working with and I can't render it anymore but I can watch it in the timeline. I was able to render it and create a nice ...
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1answer
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Bumpmap from grayscale in 2.8

I purchased a model with source Blender files from TurboSquid and am attempting to make some changes to the textures. The .blend file uses the Cycles renderer, and the mesh has a "Principled BSDF" ...
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Use HDRI texture with “Window” Texture Coordinate

I have a window model and I would like to be able to map a cubemap or HDRI texture inside of it so it looks as if the HDRI (or cubemap) is whatever is outside the window. Can this be achieved with the ...
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Treat node group as 'final image' with vector input

After you have created a node setup ( eg. creating a shape from operations on co-ord constituents ) is there a way to alter the resulting output with a new vector input ? I could create an image ...
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Are there any updated OpenCL vs CUDA benchmarks?

I'm about to retire my old PC and buy a new one. The major uses would be gaming and blender. So when it comes to buying a GPU, I'm taking those two things in consideration. Cycles on the GPU uses CUDA ...
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Hair and Eyelash Texture Problem

I'm working on a model imported from SFM and I can't seem to figure out what's wrong with the eyebrow, eyeball and hair texture. Can anyone help me how to properly set this up? I'm experienced with ...
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Blender crashes after several hours of animation rendering

TL;DR Blender crashes after several hours of cycles animation rendering, why, have old hardware, need new PC anyway, want components that zucc the issue away. So I have a rather complex scene in ...
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1answer
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Blender still using CPU even when I have CUDA chosen in preferences? [duplicate]

The problem is as title suggests, I selected CUDA and checked my GPU in preferences for the Cycles Render Device see here. But when I'm running my render, the CPU usage is anywhere from 88-99% and the ...
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Material Doesn’t Load in Cycles

I have a rigged .fbx of a person downloaded from Mixamo’s website. In Blender2.78b (on Ubuntu 18.04), I first set the rendering engine to Cycles. Then, I import the character into Blender. When I ...
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Smart uv project breaks my textures/Blender 2.79

Hello Im trying to export an object into unity, but because i used cycles render and node editor i cant export with the textures.I know I have to use bake but when i try to use smart uv project on my ...
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How to bake lightmaps with indirect lighting and environment lighting?

I am trying to bake lightmaps for a game, using Blender 2.81a. The lightmap should consist of the direct lighting from the environment map and only indirect lighting for actual lights. Right now, I'm ...
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How to separate environment in Compositor without black cutouts

Nice people of Blender SE. I'm using Compositor to blur my HDRi (as suggested by others on BSE). Cycles render engine. However, the environment behind objects isn't rendered, there's just a black ...
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23 views

Bloom effect in animations in blender cycles

I am trying to create a animation with a blooming object. The objects supposed to be blooming looks just fine in eevee but other objects look crappy. I want the objects bloom the same way they did in ...
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1answer
18 views

Images and HDRIs are blurrier in Cycles

I don't know if it is an error or not, but images and particularly HDRIs (the blurriness is more pronounced in these) lose detail and become blurry in Cycles, when compared to the Material Preview, or ...
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1answer
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Reflection of a light object in Cycles

i'm trying to recreate the same lightning condition from that shot (see screenshot), but i'm having troubles to give a little reflection to the light object (ceiling). Any tips on how to achieve this ...
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Blender 2.81 keeps crashing on Ubuntu 18

Any sightly complex cycles scene (+100k vertices) that I try to render there Blender closes itself in less than 2 minutes, when in Windows 10 it works without major issues. I've tried many memory ...
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How to get a 3d character already textured with black contours in EEVEE

I have created and textured a 3d character inside character creator 3 by reallusion and I've exported it with the blender preset in FBX format and then I've imported it in Blender 2.81. I would like ...
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1answer
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How to make floor like this? [duplicate]

How can I make reflecting floor like this in blender? And how do I make good looking glass like the one provided in the example too? Edit: I wanna make a nice reflective floor like the one provided ...
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I've got strange rendering artifacts; how to avoid it? [duplicate]

I'm quite new to Blender and Cycles render engine, so I need some help to understand how I've got these rendering artifacts and how to fix them. The overall picture is very noisy and there are a lot ...
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1answer
100 views

Blender 2.8 No compatible GPUs found for path tracing

I was having this problem where my blender 2.8 didn't recognize my GPU driver. I have a AMD RX 580 and my operating system is Ubuntu 18.04. For those who have this same problem I will post it as an ...
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Blender Cycles network egpu rendering

i have some extra eGPUs on other machines in the network, i'm on Macosx, and i was wondering if there's a way to force Cycles to use these extra cards. I'm used to Octane which is great for this, but ...
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Blender stops cycles render (GPU) when trying to use back facing transparent nodes

I have a wierd problem when i try to use a nodesetup to make faces transparent when facing them. It seems to work with cpu rendering but as soon as i switch to gpu rendering it works for a short while ...
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Can I 3d photoscan with blender?

I have tried 3d photoscanning with alot of different programs like meshroom or agisoft metashape pro but didn't get what I wanted. Is there anyway to 3d photoscan images in blender? I think that'd be ...
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Rendering only the light and reflection of an entire scene

I'm working on a project for someone, and I want to be able to export a layer of just the lighting and the reflection of the lighting off of the glass in the background and off of the other various ...
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1answer
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Modelling and texturing specific wood flooring

I was wondering how you'd go about modelling and texturing the wooden floor that can be seen in the painting below. Of course the "module" is a square and the four wooden planks around it, but doing ...