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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Some parts of material appear darker than it should be

I don't know why Eevee works well, but Cycles creates weird patches in the material and I don't know what to do.
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black strip on eyelash

When I render in cycles I get a black strip that looks like a shadow on my character's eyelashes. It doesn't happen when I render with eevee. How can I fix it and remove this shadow from the lower ...
1 vote
1 answer
13 views

Compositing effects does not show in render

I've been trying to render this animation, but the compositing "glow" effect does not show even after I apply the nodes. Can someone tell me how I could fix this problem? Or even better, ...
1 vote
1 answer
40 views

How to use textures to influence point density node?

I want to take the shape that is being output by the point density node and displace it with other texture nodes, as described in Gleb Alexandrovs talk about Nebulae: https://youtu.be/4w8_SBxCOxo?t=...
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1 vote
0 answers
25 views

How to create Splashscreen launch Multiple Default Start files optimized for each render engine

I'd like to have the option of launching Blender then from the Splash screen, choosing a pre-configured optimized default scene for Cycles, Eevee and also the default startup scene. example: Launch ...
0 votes
0 answers
54 views

All objects are completely black in material preview

I've been using Blender for a couple of years on my mac but I completely skipped over the basics and how to actually work things. That being said, I was working on a project, saved my file, closed ...
-1 votes
1 answer
35 views

EEVEE or CYCLES - Render Lawn Grass? [closed]

Looking for quick tips on front yard lawn grass. There are many good tutorials show how to make grass, but wild landscape grass. how to make it look like it's not wild and uncut, yet real?
0 votes
1 answer
31 views

Change surface's apparent color based on light depth from source

I'm trying to find a way to color the surface of objects depending on the light depth from the light source, but only in appearance to the camera. I have one light source in the scene, and I want any ...
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3 votes
0 answers
55 views

Can I render simultaneously both with EEVEE and Cycles on the same GPU without perfomance loss?

Recently while rendering in EEVEE and Cycles I had a look on my GPU usage in task manager. Unsurprisingly when I looked at CUDA usage when using Cycles it was near 100%, while another tab called "...
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2 votes
3 answers
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Procedural Border Detection on a Flat Object

My aim is to create a border around a dynamically changing flat surface. AO and Pointiness don't work obviously. The image below is from here which illustrates my goal somewhat. I would like to have ...
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1 vote
0 answers
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The right way to set up a multilayer renders (and a reflection pass)

I am trying to create a "reflection catcher", to work like a shadow catcher. I have followed this tutorial, which seems to work, but also seems to end up generating many more passes than I ...
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0 votes
1 answer
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Optimize Blender 3.2 + nvidia GTX 1080 3D Manager and Blender Cycles Setup

nvidia GeForce GTX 1080 Control Panel has a 3D Manager per application, in this case Blender 3.2. I'm not sure what changes if any need to be made and seeking advice on how to optimize for this ...
1 vote
1 answer
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Textures not showing during render

I downloaded a free 3ds file and I can see the textures, but when I render, then it just renders this white/grey model without the textures. Before render: After render - no textures are displaying: ...
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2 votes
0 answers
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Fine Lines Cycles Render

I have been interested in high-tech HUD looking renders in Blender. Many of the HUD graphics that I see are pushing the limits of how small text can be while still remaining legible. They push the ...
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1 vote
0 answers
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Can't texture small wall without it looking weird or artifacts on the edges

I created a small wall, next to a road and put some pbr wall texture on it. I am trying forever to get rid of these artifacts and thought it is because of uv mapping. First I did cube projection ...
2 votes
1 answer
225 views

How to properly use Cycles Light Groups?

Recently in Blender's new 3.2 updates, we got Light Groups, however, they are rather hard to use them without knowing what to do. How do the new Cycles Light Groups work, and how to use them?
-1 votes
2 answers
27 views

Emission gloom with transparent background [duplicate]

I'm trying to render a model using emission as it's shader and i'm using gloom node to get some glare of the emission, it looks fine in the viewport but as soon as i render it using cycles, the gloom ...
1 vote
1 answer
65 views

cycles emissive material not baking

hi i am trying to bake everything to than import in Threejs, my initial goal was to have the same looks as i have in Evee render, but Evee doesn't support baking , so i have to go with cycles, tree ...
2 votes
0 answers
42 views

In Blender 3.2, can I exclude light sources form a shadow catcher without compositing view layers?

My scene has an object which is lit from the side by a light. There is another light on top of the object, and a shadow catcher underneath the object. I want the object to be lit by the side light, ...
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1 vote
0 answers
31 views

Blender file is slow, cannot properly animate or texture because of loading speed

Blender file is extremely slow, I have to make a complex scene and cannot properly animate or texture because of the low loading speed. I'm somewhat new to blender, but i have to make a 3D animation ...
2 votes
1 answer
39 views

Material that "recognises" open edges of mesh?

I'm looking for a way to mix two materials based on distance from open edges of a mesh. Example: I have a terrain mesh and a road mesh that follows the curvature of the terrain, slightly above it. ...
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1 vote
0 answers
25 views

Weird shading when rendered compared to preview

Hi im trying to render a downlight and the rendered results gives me with this weird artifact/bug? In preview mode everything looks fine. Rendering it from the side is no problem. the problem only ...
-2 votes
1 answer
96 views

I have an i3 5005u cpu, and an intel Hd graphics 5500 gpu, so which one should i use to render a 3d animation in cycles?

I have an i3 5005u processor and intel hd graphics 5500 graphics card, which one should i use to render a 3d animation in cycles engine in blender?
2 votes
1 answer
51 views

Object invisible in material/solid preview modes

I am having an issue where my object is invisible everywhere EXCEPT in render mode or when rendered. It's strange because it sometimes shows up in a weird sort of transparent manner, sometimes not at ...
0 votes
0 answers
11 views

How to export a object with emission texture to glb format [duplicate]

I made 2 objects as the below picture, blue color box and small plane with white emission. Baked color texture and emit texture. Hear I used only one material to both objects using color and emit ...
2 votes
1 answer
19 views

animation not being applied in render

I just downloaded a stormtrooper model on blendswap and posed it for a render. Although when I render it, it just renders in the default position. In the viewport it renders with the new pose, ...
2 votes
1 answer
40 views

I can't render any frames beyond frame 2029

I have made this animation. But blender doesn't render any frames above frame 2029 and crashes. https://easyupload.io/ql63y3
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2 votes
1 answer
255 views

Trouble using the new shadow caustics in Blender 3.2

So I wanted to make something using the new shadow caustics in Blender 3.2 , like a plane with some random displacement on surface like procedural bubbles or a random height map but doing so the ...
1 vote
0 answers
127 views

rendering error : invalid handle cumodulegetglobal_v2 [closed]

My video rendering failed with this error code. Looks like an error with my GPU. Does anyone have experience with this problem?
0 votes
1 answer
25 views

Why will hair not render in cycles?

My hair particle system (beads of water) renders as it should in the viewport, but not in the render, even though the effect is enabled for rendering. Can anyone help? BLEND FILE
0 votes
1 answer
12 views

cube appears bright white when trying to do volumetrics

been trying to create some fog by using a volumetric cube, although keeps appearing as what is seen in the image below
0 votes
0 answers
29 views

Quixel materials and blender export looks wrong

I'm not an expert about rendering in Blender, but I know as much: Blender uses the metalness workflow, so the reflectivity should be driven by a roughness map and not a specular map Blender uses a ...
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0 votes
0 answers
48 views

computer reboots during cycles rendering on Blender 3.2 and 3.3

I've recently been trying Blender and couldn't get it to render cycles without rebooting after just a few second. I tried to log information into a file (...
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1 vote
0 answers
9 views

Blender crashes when I try to render with HDRI lighting [duplicate]

I'm a long time 3D artist but a brand new Blender user (mfs converted me xD) I recently purchased a beefed up Rog Strix 15 with AMD radeon 6800M GPU. I have installed all the needed drivers for AMD ...
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Is it possible to use GTX 1060 and RTX 3070 for rendering at the same time? [duplicate]

I wanted to know whether It's possible to use both GTX 1060 and RTX 3070 for rendering at the same time? is there any chance of harm?
2 votes
0 answers
27 views

Do I need to bake in order to restart rendering to PNG files?

While rendering (using Cycles) 750 frames of fluid simulation as PNG files, my computer crashed. Blender was up to frame 102 when things crashed. I reopened Blender ...
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0 votes
0 answers
15 views

Blender GPU rendering not working with the laptop charger plugged in

My laptop is Acer Nitro 5, intel i5 9300H, and GTX1650. Blender version is 3.1. GPU rendering setting is CUDA (screenshot). Nvidia driver version in 512.15, here is a detailed paste. I downloaded the ...
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1 vote
2 answers
142 views

When I switch to Cycles from Eevee, the details in my texture are lost

Link to the blender file[I'm new to blender. I did all of the 3d model and materials with Eevee, and when I change it to cycles, I have a problem. In the rendered image, it looks like the bump isn't ...
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-1 votes
1 answer
28 views

my model (sink) is rendering deformed, its fine in other views [closed]

it was fine yesterday and i can't figure out what ive done https://drive.google.com/file/d/1y3f6QZE_rYek0mwWIpD-GCzjDYRKPIoo/view?usp=sharing
-1 votes
2 answers
47 views

When I change renderers from eevee to cycles, the render view looks grey

I´m new to render. I did all of the 3d model and materials with eevee, and when I change it to cycles I have two problems, the objects look grey in the render view, and, in the render image itsel. ...
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1 vote
0 answers
14 views

Archviz animation - skip every frame and use FlowFrames or temporal data denoising?

I’ve been having trouble with the best method to render an interior archviz animation scene in Blender, using Cycles. In my opinion, there are two methods: 1 - Render every other frame (resulting in ...
0 votes
0 answers
96 views

how can I use my intel iris xe max graphics card/ intel iris xe graphics in blender as gpu compute for renders as it does not have option for opencl

how can I use my intel iris xe max graphics card/ intel iris xe graphics in blender as gpu compute for renders as it does not have option for opencl and only has none/cuda/optix/hip in cycles ...
0 votes
0 answers
9 views

Render output not in my file [duplicate]

I dont know what's going on but every time I finish a render, it wont show up in any of my files on my computer like its suppose to, I have the Output directed to the correct file but the render isnt ...
2 votes
0 answers
19 views

How to intensify and edit glass caustics?

I am having trouble with my caustics - using 3.2 and they work fine. However they do not do the trick just right - I need the shadow of the glass to have much more of the light streaks, following the ...
2 votes
1 answer
33 views

Object renders only in viewport

What I see in the viewport is correct: But one of the canisters is excluded when I render: Test renders were working fine and now suddenly this strangeness, regardless of whether I render a single ...
-1 votes
1 answer
51 views

Some overlays are black

Guys I convert my levels from Valve Hammer Editor to Blender, but sadly they look black in render. How do fix this? https://ibb.co/9tL65nV https://ibb.co/CKY2kXT https://ibb.co/R9DkRg9
4 votes
3 answers
230 views

How to create simple Fade In effect with transparent material, but without rendering X-ray backfaces in Cycles

I'm working on an animation where lot of objects needs to fade in to the scene. I know that I could achieve it by rendering hundrends layers and passes and then spending hours an hours on composition, ...
-1 votes
1 answer
32 views

Why is there some kind of warped paper in my Blender rendering? [closed]

So I was working on my blender project when I realized wraped paper in my render. How I supposed to get rid of it? (It only appear in render and viewport shading)
0 votes
0 answers
96 views

Convert DDS to PNG and change link in shader

I begin to render car with Blender and take many from Assetto Corsa, but when i import the model in Blender all shader have .dds image in it. But .dds have many issue in Blender. Is it possible (with ...
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0 votes
0 answers
35 views

transparency flickering on composite/render

I made a motion tracking animation in blender. i go to render it and the transparency flickers on the two render layers added to the composite. Blender: 3.1.2, render: gpu, gpu: rtx 3050, OptiX. How ...

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