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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Spotlight not illuminating inside building. Cycles

Hi i am having a weird porblem , i need to render this scene where the sunlight is entering thourhgh the windows and making shadows, i added a spotlight but it seems that the light is only working ...
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Can’t get freestyle to render

I am trying to render the wire frame of (any) model using freestyle. I have followed every tutorial I could find, and no matter what settings I check or uncheck, the outline never renders. I have ...
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blender crashed twice during long render, how to detect and remedy reason for crash?

I am brand new to Blender. I'm running Blender 2.8 on Ubuntu 20.04. I've been working through an explosion tutorial. I have a simple-but-glorious explosion using only a single emitter and I've been ...
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Object Particles not rendering

As the title says, I'm having a hard time rendering my particles in cycle (but they do appear in Eevee and viewport) I checked the layer, the items visibility in render, the cameray ray, the emitter ...
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Parts are lighted when they should not be

I made an Ariane 5 rocket and during the texturing, I see a lighting problem, parts are lighted when they should not be because of the sun light. Is that normal ?
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Why does it displays a kernel error message whenever I try GPU rendering in Cycles?

Whenever I select GPU rendering it displays an error message. I have a Radeon RX Vega 8 GPU but still it doesn't get to work. I tried selecting only GPU rendering in Preferences tab but still it doesn'...
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Texture baking in Blender 2.79 resulting in scanline effect

I'm currently working on a commission in Blender 2.79 and trying to bake the final diffuse texture, and every time I hit bake, Blender gives me an end result with a sort of scanline effect. The entire ...
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How to control material property by using audio?

Is there a way to control the mapping property from the material object to an audio of choice for example I have this as of right now I have it set to randomly animate the location of the mapping ...
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Why am I getting artifacts in my baked normal map?

I have a material that does some procedurally-generated bump mapping, and I want to bake the results to a texture to improve render times. However, I’ve found that baking a normal map seems to produce ...
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Smoke isn't rendering in cycles 2.92

I was trying to make a smoke sim but noticed after baking that the smoke doesn't render, the sim shows up in wireframe view. Any help? [https://pasteall.org/blend/0cc1f3837ff24ccaa43e8c4e6ee1c080](....
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Randomize Rotation, Scale, and Location for a smooth loop animation?

Tried looking this up and I had no idea what to type for it. So let me explain what I plan on doing: For the chains surrounding the subject, I have Axis Empties that are hooking a curve that will ...
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Object that is not in preview is in render

I am new to Blender, and decided to try making a short animation of a metal monkey head exploding. I wanted to export it as an MP4, so I followed the instructions( going into the render tab, setting ...
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Why no color in my explosion? And why doesn't cycles or eevee render smoke? Rendering problems Ubuntu 20.04/blender 2.8 or 2.9

I've been following this explosion tutorial. While I've managed to get a pretty great-looking explosion shape, it's just grayscale -- no color, even though I'm certain I've followed the shader edits ...
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Adding ACES False Color to Blender

Does anyone know of a way to add False Colour back into Blender when switching to ACES Colour Management? Thanks, Mitchell
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Hide instance (original) light while keeping the instanced versions

I've created a lightchain. For that lightchain I need a point light at every "bulb", as an emitting material is too weak of a lightsource. To achieve this I have created an array of planes ...
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Glass casting shadows and not looking real

I'm trying to make these glass planes on the ceiling but something weird is going on with the glass shader. I tried couple of different ones but nothing seems to do the job. I'm talking about shadows ...
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Denoised render's shadows too distorted without Indirect light clamping - too opaque with Indirect clamping. How do these interact? [duplicate]

You can read in my previous thread about my struggle with this part. I made a milestone just now, increasing Indirect clamp will remove the fireflies, however the shadows are now too opaque. Render ...
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How can I make the pink part of this texure glow?

This is a wave texture, I don't know how to make the pink part glow, so any help is appreciated!
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How To Fix Pixelated Cycles 3D Viewport Editor

When I use Cycles in the Viewport editor, the model is super pixelated. When watching tutorials, other people don't have that. My computer is high end enough to be able to handle it. What other ...
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Can't get simple light path nod examples to work

I've seen a few examples of using the light path node; looks cool and very useful! Most simply mix two shaders then control the factor via one of the outputs of the light path node. For example a ...
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Screen space reflections cause white pixel [closed]

This is what I get when I turn on screen space reflection I don't know how to fix it but when I turn off the space screen reflection the white pixel is not showing. but i want to use the space screen ...
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1answer
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Donut glass cup render has too many grains and speckles + denoiser come out distorted, shadow is also too opaque. What settings may I try out?

I feel I am nearing completion of the tutorial but am still having gaps in knowledge on how to render light properly. 2.92.0 blender file: https://pasteall.org/blend/6474d6f8bd5f4b1abbabaa41478e7e6a ...
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1answer
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Discontinuous large values in depth map

For my project, I save rgb frames (PNG format) and the depth maps (EXR format) for different camera views. The compositor setup I use is shown here and I use Cycles. When I read the raw depth values, ...
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How to use both GPUs in for rendering by default

I have a Blender project where all is set up to render some cameras. I use 2 GPUs and, within the interface, the secondary GPU is never used until I go into properties and just uncheck and check again ...
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Can I find Geometry Nodes in Blender 2.91?

I am new to geometry nodes and don't know whether they're in Blender 2.91 or not. If not, can I add them into 2.91 somehow?
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Followed Blender Guru's Geometry Node tutorial (gumdrops), have some issues with how it looks

I followed the tutorial as closely as possible, have the exact same settings (according to my knowledge) but it does not look nearly as good. It's too transparent. Can someone tell me how to fix it? (...
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Blender has a problem with my GPU

My GPU supports open cl (it's a Radeon R9 M375) it should render scenes just fine but blender pretends like it can't do it and it doesn't show up in preferences BUT when I use SHEEPIT render farm ...
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1answer
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Jagged shadows on cycles [duplicate]

I have heavy jagged shadows on a simple scene, on cycles renderer. I am using an hdri environment texture as lighting source and a default A.N.T. Landscape mesh. I have also applied a material but it ...
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2answers
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Make Object Fall Over Correctly

So I have a small shack made out of Legos in blender that I want to animate to fall over, the only issue is that the z rotation doesn't work as expected. Here is a explanation in pictures. This First ...
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1answer
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why is my mesh fully lit from all angles with no lights in the scene?

I am playing around with materials in blender cycles, and for some reason my mesh is brightly lit with no lamps in the scene. ambient occlusion is off and I tried restarting blender. what is going on ...
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CPU hitting 100% after rendering a few frames

I have this old file that I needed to make some changes to. I created a new file in 2.91 and imported all of the objects from the old file. The animation plays fine. I can render about six frames ...
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Can I know how many nodes are there in blender 2.8 [closed]

Like procedural, shader, geometry, animation can I know how many more nodes. How many nodes are there in blender 2.8
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HDRI error not properly when show up

everyone can you help me with this problem? i still use blender 2.79 hdri not properly show up. actually, I got one problem too but I forget to take a screenshot, when a textured object seen in ...
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payload on the video card [duplicate]

The question about the GeForce RTX2070 Super (8Gb) video card: I want to ask - why is it on the render in a blender with CUDA enabled, GPU enabled in Cycles render tabs, Featura support set - gives ...
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1answer
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Hiccup on looping lego walk cycle

I have noticed that’s this topic seems to be a common theme but what ever I have seen on other questions doesn’t seem to help. My character starts in the middle with his walk cycle and using math ...
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My characters skin looks Caustic in Cycles and the Shirt Texture is missing [duplicate]

My characters skin looks Caustic in Cycles and the Shirt Texture is missing. Cycles Render EEVEE render
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Texture seams in Cycles, but not in Substance or Redshift

I'm pretty new to Cycles and Blender as a whole, and am having issues with seams coming through when rendering with Cycles. I made the texture in Substance Painter and the seams didn't show up there. ...
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1answer
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Smoke sim does not render

The smoke sim I made shows up in every viewport besides render, and it does not show up when I render image. I tried recreating the flow and domain, switching cycles to evee and back. https://pasteall....
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HDRI Not Appearing In Final Render [closed]

I am having issues with the final render and HDRIs. Whenever I render in the Cycles Engine, my HDRI disappears and replaces itself with the default background. Here is the image (note the lack of an ...
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Lighting in Cycles is not working properly

When I try to work with Cycles my lighting doesn't show up and I see nothing in my viewport. But when I switch to EEVEE everything works properly: But when I try to render I get my model lighted but ...
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1answer
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Complications with rendering and compositing nodes

I'm trying to create a bloom in the Cycles render engine, I believe I have successfully created it but unfortunately, I'm having some trouble rendering the new nodes: Here are the nodes (notice the ...
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1answer
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Why is there no color in my lava material? [duplicate]

I followed a tutorial and it looked great there but mine has no color and also has no displacement either. tutorial i followed here: https://youtu.be/B4XDBG4m3d0
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2answers
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Making inside of glass

Both of the yellow spheres are exactly identical, but the one in the glass cube looks more bleached than the right one. Which variables should I be looking at to make the color of the left sphere look ...
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Fabric geometry broken [closed]

Different models from model providers, not working, any suggestions.. i have done a lot of trouble shooting already, seems to be fine in the original scene one of the models.
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Depth Pass for Particles in Blender

Can't find much information on this but I have tried using the Depth > Normalize > ColorRamp to control depth pass for particles but doesnt seem to work. Any ideas?
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Render a “ghost” object that receives environmental lights but doesn't contribute

Let's say I have a scene like the "Cornell box" (https://en.wikipedia.org/wiki/Cornell_box). If I add a white sphere in there, it will: Receive bounce lighting from the walls and other ...
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Looking for Pasta Material

Looking for Pasta Material like this in Cycles. I tried so far. With this nodes. With the basic knowledge of nodes i tried. Need more details. any suggestion or help how to make like a pro material....
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How to use Vertex Groups to determine the distribution of an object in geometry nodes?

I am using the new Geometry Nodes to put chocolate chips on a cookie. I have weight painted the cookie shape to keep the chocolate chips on the top of the cookie. If the vertex group is named "...
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Rendering doesn't work

When trying to render an animation on my new workstation in cycles, the rendering is stuck after a few frames and doesn't manage to continue for no matter how long I wait. I've got a problem. I ...
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I get white squares in my final render (cycles) [closed]

Weird whiter parts are appearing on my final render My render settings are https://imgur.com/a/abcHsd4

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