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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Textures are missing, but only when I render

I was trying to make an animation but for some reason when I try to render it or just go into render view the materials are all pink. I seen other posts about a similar problem of the textures not ...
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Blender 2.90.1 - having problems with glass (rendering black)

i'm having problems with rendering glass ... namely - after setting up the shader for it - this thing happens: it happens both on BSDF and the glass shaders ... the glass object is just a scaled box (...
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Cycles will not render fluids [closed]

Heyo Cycles isn't rendering fluids. I've scoured the internet for answers and have tried enabling render view on the domain, baking the fluid correctly, etc. I have pretty much done every single ...
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Object glitched look in viewport, black in camera view

I'm following along with CrossMind Studio's Blender Day 1 tutorial and my viewport began displaying the following image: As shown, in camera view there's a black bar clipping through the scene, and ...
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increase rendering speed in cycles [duplicate]

This question has been asked before but answers didn't work that well for me. I am making a animation at 720p on Cycles i3-7 gen , NVidia Geforce 940mx, I have enabled both of them in CUDA. I am ...
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Transparency and motion vector

I rendered a semi-transparent sphere with two little spheres orbiting it. When I export motion vectors the sphere behind the big one doesn't render correctly when compositing since there is no motion ...
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1answer
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Why is my fire simulation so blocky in Cycles rendered view?

I'm making a candle, using a Mantaflow fire simulation, and all looks good in solid view. But when I switch over to Cycles rendered view, the flame looks very blocky and low resolution. It looks the ...
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Why does cycles my rendering look like this?

Why does cycles rendering look like this ? I don t want it spherical, and has the little dots.
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1answer
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What are anticipated use cases for Is Diffuse Ray (Light Path Node) in Eevee?

The Blender documentation says the following about the Light Path node support in Eevee: Eevee has no real concept of rays. But in order to ease the workflow between Cycles and Eevee some of the ...
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Can Cycles physically mix colours?

I was trying to recreate a so-called CMY cube, which is a translucid cube where opposite sides are coloured cyan, magenta, and yellow. When looked at from an angle, these colours mix, e.g. (More ...
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Render mode error in cycles engine

I did a scene with an hdr. But after a while iam not able to see my hdr in material preview. Also, when i switch to render preview the entire scene is black without any hdr. Then i thought it might be ...
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How to write EXIF data in rendered images?

I'm trying to render an image in cycles. version 2.83.5. trying to write metadata or Exif data into the image. In the output channel, I ticked every box on metadata. But I didn't find the EXIF data ...
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Is there a way to make a plane into a transparent for a PNG sequence?

I want to pan a plane in front of many 3D objects and make the plane material cause the render to make a PNG transparency instead of showing the plane. In cycles. Can I do that in the initial render, ...
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strange colors/textures on render - looks fine in viewport

So I am not sure if I did something wrong here but, I am creating a sort of demonic creature and it looks like this in the layout window in Render view (Cycles): and in Texture preview mode it looks ...
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1answer
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Random Streaks in Appearing Only in Final Render

My rendered animation shows a large streak on some of the frames, and not on others. The streak doesn't show in the viewport, only in the final render. Rendered using cycles. Here is what the Render ...
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How can I avoid crash when adding subdivision modifier?

I am trying to add a Subdivision Surface modifier to a mesh in Blender but it crashes. It's really weird because it has only 117k tris so it shouldn't crash for 1 level of subdivision. Could the ...
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Is there a way to speed up or slow down movie clips that are on a plane?

So in Blender it is quite easy to put movie clips on planes via the 'images on planes'-addon. But I couldn't find a way so change the playback speed of the individual planes. Is it even possible, or ...
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Volume appears extremely dim in render compared to rendered view in the viewport

So, I ran a fire simulation, then imported the result as a .vdb file. I applied this shader: and that produces this result when viewed in the rendered-mode viewport When I hit F12 and render the ...
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How to increase rendering quality? [duplicate]

Any suggestions on how to increase cycles rendering quality? I would like to have this image as HQ as possible.
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Why is my scene rendering out weird lines? [closed]

I have a very simple shot set up with simple textures on the objects. No simulations or anything special and, there's weird sort of halo-ey lines that faintly come across my shot for no reason. There'...
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How to create a blur (fall-off) in a material using node?

I am trying to make a procedural displacement texture using a gradual fall off.Lets say we have created the following texture: L Now I want to give a fall off(or blur the texture) to the give texture ...
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1answer
14 views

Wrinkling in flat UV

Adjusted a model to accomodate a few holes. For some reason there is a wrinkling in the applied UV. I went in and tried eliminate any overlapping uv's that may have produced this issue. I cant seam to ...
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How to render realistic glass with refracted shadows in Cycles (as pictured)? [duplicate]

Is it possible to render in cycles refractive shadows through glass texture (as pictured)? I have tried varying light bounces, specular lighting and increasing samples, perhaps my setup isn't ...
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1answer
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This Light effect not showing in Render but shows up in View-port rendering. Affecting both EEVEE and Cycles

When render in view-port, The lights creates this effect on the fuselage(notice the part before wings.). But when I render it out that does not shows up. This is true for both EEVEE and Cycles. Am I ...
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1answer
36 views

Weird Transparency when Rendering in Cycles

This is my first time rendering in Cycles since I just figured out how much nicer it looks with normal lighting, but I'm getting a weird transparency effect on the objects when the scene is rendered ...
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Problem with Image Texture using Bump and Displacement (Cycle Render)

I'm trying to follow a star destroyer tutorial made by CG Geek and I've reached the point where I'm using Image Textures for the side. For some reason in rendered, the image texture looks quite odd as ...
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Volume Scatter Works In Eevee But Not Cycles. Am I missing something?

I wanted to try and render a Star Trek borg scene I have in cycles to see if I could bump up the HD-ness of the outputted image file but noticed that when switching the render modes, anything that ...
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1answer
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Can I make a plane renderable but not effect the light in the scene?

I want to add in a plane into blender with an image on it. I want the image to render out into the scene but I don't want the plane to effect the the light in the scene. Is there a way to do this?
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How To Render Glass Materials in Cycles

First: After modeling, I render the Object in Blender, it was fine to me or in my eyes. See the Image. Second: I tried to render the Object in Cycles since the Glass Material which I downloaded from ...
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My textures in my render look different than in the preview render 2.8 (Solved

I don't know why my render looks different than in the preview. Got any help? edit: I fixed it, some guy gave me some pointers and figured it out https://drive.google.com/drive/folders/1csDJXr-...
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cycles crash when rendering with AMD GPU? [closed]

I have a 5700xt, running the latest drivers which were released yesterday. (adrenalin 20.10.1). When I try to render anything with the GPU, even an empty scene with no lights and no default cube, ...
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Q. Object appearing as wireframe, disappears when overlay turned off

I'm fairly new to blender. I'm not sure if this is a bug, or a feature I accidentally stumbled onto. As can be seen in the pictures, the object always appears as a wireframe when overlays is turned on,...
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Rendered texture,Final Output

I have created a chessboard and pieces scene. Unwrapped model individually. I am new to blender hence referred one tutorial hence made model as per that. I "shade smooth" all and then with ...
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How do you check motion blur in Cycles when you create something

Devices CPU Intel Core i7-9700KF memory 64GB GPU GEFORCE RTX 2070 Question When I create something in Eevee, it's possible to check how is motion blur because real time rendering works good. But in ...
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62 views

Cycles: image rendered with zero light, why pixel value is 11 instead of 0?

I am fairly new to Blender, trying to do some simulations of a camera system using Cycles. I have a simple scene with a plane, a camera and a point light. With a Python script, I vary the light ...
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Optix / OIDN De-noiser functionality in Command line renders

In short I can't find any information on this, but does blender command line rendering support OIDN and Optix denoisers? Our renders denoise through the renders on local machines (not in command line),...
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Can I bake light from Nishita Sky Texture?

I want to bake the light from a Nishita Sky Texture to a model in Blender 2.9. I thought it was possible, but now I can't manage to do it. I have Nishita set up as the sky in Cycles (obviously) but it ...
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No compatible GPUs found for path tracing NVIDA Ge-Force

I'm sure someone else could have asked this but I cant find any questions that are the same as me. I have a NVIDIA Ge-force RTX 2060 and I have an up-to-date driver installed for it: (https://www....
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Blender CUDA can't find my GPU(MAC) [duplicate]

As I was adjusting my settings I realized that my GPU is not recognized for CUDA at Cycles tab. I tried everything afterward to make it appear- went to Nvidia developers website to download CUDA ...
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OpenImageDenoise not with all cores?

OpenImageDenoise needs a lot of time on Cycles rendering, and while the GPU renders blistering fast 14 of my 16 Threadripper cores are not denoising. Is there somewhere a parameter to tweak to get all ...
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2answers
102 views

Create a trail effect (Meteor)

I am trying to show a sphere with a trail, like the one shown in the image. I have tried using keyframes and moving the object from one point to another, and then enabling motion blur. This is not ...
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1answer
25 views

Blender Cycles Viewport Preview taking too long

I am a user about 6 months into blender. Earlier I was doing my work on an i5 6200U with Intel HD 520, and now I have moved to a i5 7200U with Intel HD 620 graphics. My cycles viewport rendering (you ...
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How do you make a surface with no imperfections look good?

I'm trying to model/render this dalek is realistic is I can, but I can't really see any imperfections in the grey surface. Is there anything I can do to make it not look too flat? For context, the ...
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Objects render with grey lines Cycles, Blender 2.8

Good day Some of my objects seem to render with strange grey lines and shapes. Using cycles in blender 2.8. Here is my render. does anyone have an idea of what might be causing this issue. Thanks
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Render turns out super bright and orange

I've been trying to cycle render this scene for a while now. Everything seems to be going fine until its's fully rendered and then it turns all bright and orange. Can anyone help me out?
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How do i get rid of these white areas around the hair particles?

i have tried everything, from playing with alpha blend, messing with the light source, and even changing the light of the world. But the white wont go away. It only shows up when its in front of ...
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Very noisy indoor scene mystery

I'm working on a indoor scene in Cycles Blender 2.90 with the Nishita sky as light source coming trough the windows. For the glass material I used Blender Guru's glass hack, but I'm sure the glass isn'...
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EXR output units

I am using Cycles to render a scene and saving the output in linear format to an EXR file. If lamp units are Watts (or W/m2 for the sun), what are the units of the value of a given pixel? Edit To ...
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Issue when rendering in cycles

Recently followed a tutorial in blender: https://www.youtube.com/watch?v=5naMFeWTBeY&ab_channel=Iridesium Which is about making black holes in blender using Volumetrics and noise textures for the ...
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Missing Cycles Renderer [closed]

2.90.1, Win 10 64x Maybe a minor bug, or just an odd glitch: Did a "simple" project, rendered via Cycles to PNGs, opened a new file, imported my sequence and re-output to mpg... everything ...

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