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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1answer
18 views

Displacement map render shows visible lines

I have prepared a displacement map using dem images. While rendering, a line border is coming around the border of the map. How do I fix it?
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1answer
104 views

what is the difference between the number of samples of a render and the resolution of an image?

i want to know whether increasing the number of samples and increasing the resolution of a render affect the quality in the same way because i've usually kept my resolution high and number of samples ...
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1answer
18 views

Hillshade render of DEM showing unwanted lines

I am trying to make a hillshade using a clipped DEM. While rendering the model shows lines near the edges of dem which I am unable to fix it. The model is attached here.
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1answer
18 views

Integrator is missing in render Sampling tab?

I've seen Integrator in sampling in many tutorials and in sampling articles and blender manuals but I can't find it in my properties. I am new to blender so is there some preference setting to enable ...
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1answer
22 views

Shader/UVs in Eevee looks different in Cycles

I am working on a timer (based on a tutorial by CGMatter), and everything works when I view it in Eevee Rendered view, but when I switch to Cycles, it appears like the shader just stops working, the ...
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17 views

Light Linking In Cycles

May I know when Blender's gonna have the feature of assigning a light to the desired mesh? It's something really crucial for a rendering engine to have yet cycles doesn't have it. It's a pain in the ...
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0answers
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Shadow catcher is transparent but visible in reflections?

When I use a plane as a shadow-catcher it becomes transparent but is still visible in reflections. Many people suggest unticking Glossy in the Ray Visibility section of the plane's Object properties. ...
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1answer
19 views

Final image render produces blurrier result than 3D Viewport's render

I'm using Cycles and finding that the image I see in the 3D Viewport (when using rendered shading) is far crisper than the final render produced with Render Image (F12). I can't work out why. First, ...
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1answer
26 views

Cycles drops objects?

This is a screenshot from the blender viewport (2.93, Cycles). On the right is a movie screen illuminated by a spotlight. It's showing a movie. Note the hideous sconces on the wall on the left, ...
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1answer
36 views

Realistic folded transparent/translucent shadows

I'm currently modeling a bedroom scene that has very thin curtains over each side of the window. I'm able to make them transmit light from the back side with no issue, however they either cast no ...
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1answer
37 views

render does not works properly [closed]

I recently started learning blender and came upon this problem, but coudnt find solution,i have been trying to find out why my animation does not render properly, the preview is showing all ok but ...
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Do the latest experimental versions of Blender have cycles x? [closed]

I know that Blender 3.0 alpha - cycles x has the feature but what about all these releases? Do they also use cycles x?
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18 views

Can we change Noise seed per sample in Cycles?

In cycles, I have noticed that instead of taking 1000 samples, we can take just 10 renders of 50 samples each with different noise seed and average them externally, the noise goes down A LOT. So, is ...
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1answer
19 views

Mantaflow fire not appearing in the image saved after rendering

I have rendered an image that has mana flow fire and it is appearing on viewport and the render. But the image that is being saved on my computer doesnt have the fire. I am attaching images to explain ...
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1answer
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Why is my animation looking dark? [closed]

I'm rendering animation and the result is not what I expected. The file is dark and it does not look like in the viewport shading.
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1answer
387 views

What material is it? (Holdout node)

I got an asset from internet to make cool cards, they have 2 layers, the first one is for object and the second for the card it self. And my question is: What material it is? Does this material just ...
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0answers
36 views

How to render soft edge with hair in cycles?

as you can see the hair edge is so sharp,not smooth enouht(even able count the pixel),i want it to be smooth. the black hair is the hair,the white hair is curve bevel,i made this pair to compared,to ...
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19 views

Emissive effect from black objects [closed]

I am trying to recreate something similar to this scene from Sigur Ros Brennisteinn in Blender using Cycles. I am having a hard time getting the effect of a dark sphere that represents a celestial ...
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0answers
32 views

Cycles CUDA issues in Google Colab when rendering [closed]

I am trying to render a scene on Google Colab but I keep getting the following error: ...
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1answer
34 views

Can't bake high poly normals to low poly

I'm trying to bake the hole and beveled edges of the high poly, but the bake results in either a blank map or a blank map with holes where the UV is. I've tried selecting the high poly first and then ...
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0answers
22 views

windows task manager is not showing CUDA utilization graph in my laptop [closed]

windows task manager is not showing CUDA utilization graph in my laptop(HP pavillion) specs are: ryzen 5 4600H and nvidia 1650ti but CUDA graph is showing in my friend's laptop (lenovo ideapad gaming ...
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40 views

Is it possible to output two sample levels from the same render?

I'm working on a sizable animation which may end up having around 512 samples to ideally handle hair follicles; maybe more. This is going to take time to do. Incidentally, I'm also on a soft deadline ...
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2answers
39 views

Cycles renders coming out speckled and low resolution, how can I improve this?

The render below was done with cycles with sampling set to 128. I've done renders in the past that have come out nicely with what I believed are the same settings, so I must have clicked or slid a ...
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32 views

Does my EXR have everything I need for compositing?

The blender stack exchange community has been super helpful for my project and I will certainly try to give back to other users whenever I can. I'm ready to export my sequence to OpenEXR Multilayer to ...
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23 views

is that possible to use .SPSM (substance painter) into blender?

i got a good material from net but the format is .SPSM is that possible to use in blender? someone said must use plugins but i dont know what plugin it is
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1answer
58 views

How to Create a Hard Black and White Shader with Inverted Edges

I am trying to recreate the art style below in Blender. I am able to get the hard black and white effect using a very powerful point light but I cannot figure out the edge effect. This effect can be ...
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0answers
24 views

Jerky Cloth Simulation

I have a cloth simulation that I rendered as a PNG sequence and played out as an mp4 in Adobe Premiere. Unfortunately, the video has become quite jerky. At the beginning when the Cloth Sim starts it ...
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0answers
31 views

Rendered texture looks different from material and render viewport - Why?

I can't understand why the texture renders with very low detail (even though the other textures stay the same after render). What could it be?
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1answer
38 views

Geometry Nodes - Billboards (similar to track to constraint)

I'm trying to make flat planes that face the camera (billboards) using geometry nodes. It's pretty easy to do with particles, you just add a track to contraint pointing at the camera. I started with ...
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2answers
114 views

How to randomise any value every frame between specific interval?

I'd like to randomise any value. Here's an example: I'd like to randomise emission strength of a material every frame change between 0-15.
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1answer
51 views

Rough transparent plastic material with fake hollow inside

is there a shader that for transparent plastic that simulates a hollow inside, as described in this answer, but whose roughness is also adjustable? Using that node setup increasing the density value ...
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0answers
22 views

Cycles transition effect doesn't show in render

We followed this tutorial with a simple t-shirt and it worked perfectly with cycles. Then we did it with a dress that has different materials and it doesn't show the effect when we want to render it. ...
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3answers
59 views

Texture doesn't apply correctly

Does anyone know why this texture stretches like this?
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1answer
42 views

Light stopped rendering but visible in shading viewport - What happened?

A light that would previously render without any issue suddenly stopped. It has the same exact nodes as the first light and the only difference is the color which wasn't an issue before so I don't see ...
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1answer
35 views

Where are the Graphics Card settings?

I can´t seem to find the Graphics Card settings under preferences/system. Is this just about the current blender version?
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2answers
55 views

Adding "Mist overlay" in live Viewport Render Display - Cycles

Hi lovely Blender community, I mostly work on larger environment scenes in which depth plays a decisive role. Now there are several methods to get this, either you render volumes (which unfortunately ...
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0answers
16 views

Stop shadow catcher from receiving diffuse light

How can I set up a shadow catcher plane so that it doesn't catch diffuse light from the other objects? In other words, I want the shadow catcher to catch shadows and only shadows. The only way I found ...
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17 views

toonkit for cycles Lights not working properly in front view and another side, top, back view

Lights not working properly in front view and another side, top, back view. It works fine in perspective view
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0answers
35 views

How to remove black background in rendered rgba png image sequence?

I rendered an animation in blender cycles and I set it to the following settings: I waited for hours for the image sequence to be rendered into a transparent background image sequence, and yet the ...
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0answers
20 views

I downloaded the latest 3.0 alpha release. I cannot find ambient occlusion under world environment for cycles. Where it is?

In the previous versions, it was under the world tab. I downloaded latest release and now I cannot find it. This is the option I am looking for This is from the latest release
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1answer
51 views

How to render this

I downloaded an obj+mtl from Betanji (on the left image) and tried to render it on cycles (on the right image). What I supposed to do to get the same render as on the Betanji site??
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How to get ocean displacement waves?

I'm working on a scene where a ship moves in the ocean. But I'm not getting bow displacement waves. Minor rendering errors are present. Here are the settings for dynamic paint waves (brush): I've ...
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1answer
84 views

Driver Editor not showing HSV instead shows RGB

I have this idea of being able to apply Complimentary color theory in scene to minimize the time (I know results might be differ when applied in post and when applied in the scene). So, my idea was ...
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0answers
15 views

Why does OptiX Denoising work in Viewport but not Render when rending a specific (large) scene?

I cannot get OptiX Denoising to work on the final render for my complex scene. However, if I create a new scene and render the default cube (using low samples as a check), OptiX denoising works for ...
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0answers
16 views

When I try to render, nothing happens [duplicate]

When I press render, the render window opens but nothing appears in it. I have been using blender for a long time now and this has never happened before. I have checked that I am using the right ...
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0answers
27 views

Can't get GeometryNodes to bake into a texture

im trying to use GeometryNodes to make a ground texture with pebbles scattered everywhere, but i have a problem where these instanced pebbles get completely ignored in the cycles baking process ( the ...
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1answer
103 views

Why does my material's vector displacement not look the same in render?

This is the material with vector displacement I created... (In viewport mode) This is how it turned out in rendered mode Why??? I tried changing the material settings to enable "displacement&...
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1answer
42 views

Blender rendering slows down over time

I'm new to Blender and I'm trying to render images for my PhD project. The images are rendered using a plug-in that would generates arrays of the scene from different views: https://github.com/gfxdisp/...
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1answer
54 views

Glass showing black opaque elliptical reflection

I have a problem with glass, which emits a strange black opaque elliptical reflection that can be seen in the picture, instead of being transparent as it should be. Number 4 in the first picture shows ...
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19 views

Transparent and reflective items are not showing in final render

Both the ship and diamond are not showing up in my final render, even with multiple lights nearby. Is there a setting I'm missing?

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