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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Big difference in rendered appearance between blender 3.6.4 and 4.0.2

i created a scene in blender 3.6.4 with some primitive shapes and some simple lights and little bit of compositing it was good in 3.6.4 like this: but with the same settings in 4.0.2 its very ...
Hassan Rostami's user avatar
0 votes
1 answer
14 views

Objects not rendering properly in Cycles

I'm very new to rendering, just started playing with Blender to get a good render of something I built in Sketchup. For some reason when I switch to Cycles there is one set of objects that start ...
dongle's user avatar
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Render my project is a big problem [closed]

I am new on blender since i've just started a video game program 15 weeks ago. I am trying to make a cycles render for my scene that has a rotation on one item in the scene and i've made a particules ...
Jean-philippe Nobert's user avatar
1 vote
1 answer
25 views

Muddled results from many-reflected mirror

I'm building a geometric shape with meshes that have emissive shaders along the interior edges, and the faces of the shape are "two way mirrors". The idea is that these emissive shaders act ...
gds's user avatar
  • 113
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0 answers
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Blender ram usage goes through the roof for no reason

For some reason blender at times uses way more ram than needed. A fresh scene will use 5.5gigs of vram opposed to original scene running out of vram(24gigs). The only way I've found to resolve this ...
user38300's user avatar
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0 answers
17 views

Problem in rendering [closed]

I am making a low poly horse in blender. Any time I try to render the image using either EEVEE or Cycles, Blender shuts down after a few minutes. What can I do?
Emmanuel Cobby's user avatar
2 votes
1 answer
73 views

How to draw grease pencil hidden behind VDBclouds, without being is always at the forefront?

I want to draw something hidden behind VDBclouds, but the Grease Pencil is always at the forefront of the view. What should I do?
cj2's user avatar
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0 answers
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Floor material reflections. How i may reduce them?

How to reduce floor material regflection? Here is my nodes of floor texture
Gintarė's user avatar
0 votes
1 answer
21 views

How to use render layers with different sample counts?

Is there a way to use render layers with different sample counts? For instance if I want to render a character with 256 samples but an object in the background with only 64 samples? I cannot find any ...
user123511's user avatar
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0 answers
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CUDA Launch failed in Linux [closed]

In Linux debian 12 I was rendering a video with 150 frames and everything was fine until the error pops up at frame 58 " launch failed Cuda queue....."And the scene complelty stopped ...
Yukthy Parthy's user avatar
-1 votes
0 answers
21 views

How to give Gold material to transparent png image [duplicate]

I have a Black Transparent png image. I want to give golden metallic material to it. Is there anyway or shader to convert image to material. Any suggestion or help. Thx.
atek's user avatar
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1 vote
1 answer
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Star / Magic Particles

I'm doing something for Christmas and I would love to add a stars/lights/magic trail to Santa Claus. Reference: https://www.youtube.com/watch?v=i-6cggDxzBk How can I do that? I will render using ...
Haru Shiba's user avatar
0 votes
1 answer
28 views

How would I fix my diffuse colors not appearing from my High Poly baking object?

I'm currently attempting to bake down details from a thin string object to a box object so that the box gets the colors and uses less tris than the string. A Simple High Poly to Low Poly bake. My ...
Isaiah's user avatar
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0 votes
1 answer
48 views

How to create a material that is not affected by light? (Blender 4.0, Cycles)

Blender 4.0, Cycles. How to create a material that is not affected by light? I would like to make this part not affected by light Blender file: DOWNLOAD
max's user avatar
  • 189
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0 answers
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Bizarre artifacting when baking diffuse selected to active

Getting this bizarre artifacting across my UV while trying to bake this candy cane spiral texture to them. I've used selected to active in the past to bake textures from existing meshes and it worked ...
Ryan Ratliff's user avatar
3 votes
1 answer
38 views

Is there a way to change the color of the emissive object without changing the color and strength of the light

So I have this scene and I very much like the amount of light and its color on everything inside the room, but the windows are way lighter than i want them to be. But if I change the strength of the ...
Paperfoe's user avatar
0 votes
1 answer
40 views

The stings of my cactus look weird with a weird shading but only in cycles?

Why do they have those black noisy spots ? I have created a vertex group from the cactus vertices and assigned a particle system to those. For the particle System i have created a little cone that i ...
flolopi's user avatar
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1 answer
63 views

how to change Rendering Tile in cycle?

I am using Blender 4.0 and i saw the rendering tile in cycles hs changed. While I am using older version there are lots of small number of tiles while rendering a image in cycle. But In 4.0 version ...
Yukthy Parthy's user avatar
0 votes
0 answers
16 views

Glare node Final Render is not same with Viewport Render Glare [duplicate]

Final render of my scene not showing glare node correctly same with viewport render, Here's my look viewport render with simple glare composition. And here'e the result: can someone help me or i do ...
Satrio Adib's user avatar
1 vote
0 answers
31 views

How to turn reflection light into limited color? (cycles)

heyya, I'm having trouble in making this camera lens: These glasses are under two same lamps, but turns out different colors I tried a lot to control the color but it always look like a green lens: ...
JiuyeAyan's user avatar
0 votes
1 answer
26 views

doom style directional sprite material

I am attempting to create a Doom style 8-directional sprite material for a plane that changes based on viewing angle. I was following a 6 years old question from here: How do I change between ...
Prokop Sodomka's user avatar
0 votes
1 answer
41 views

How to make glass dispersion behind a no dispersion glass? (cycles) and why light reflections is triangle in a round surface?

I created a camera lens in cycles, and I want it's core lens to display color dispersions: However, there are a glass panel that covering the core lens which prevent color dispersions to show up. ...
JiuyeAyan's user avatar
0 votes
0 answers
40 views

Object is not visible in the rendering tab and within the rendered scene but visible in the animation tab

I've just started to use Blender and I am trying to add a 3D object to the video scene with Blender. The default tutorial was ok and everything worked out with the default 3d monkey mesh. Then I ...
Artur Korobeynyk's user avatar
0 votes
1 answer
43 views

Modifier issue in Cycles - Black Ghosting

I'm fairly new to Blender and was hoping you could help. I'm creating a short animation for a University project and have come up against an issue. I'm creating an animation where a sphere splits in ...
ddml's user avatar
  • 3
0 votes
1 answer
45 views

Point light V3.6 vs V4.0 not same Radius effect [duplicate]

I'm testing the unexpected V4 of Blender. I'm looking a strange diférences: For the Point light / Radius value = 0.25M it look diférent in Blender V4.0.1 The workaround shared in this post New Spot ...
Jean-Baptiste BARON's user avatar
0 votes
0 answers
16 views

How to instance objects including particle system?

I've searched high and low and couldn't find any answer to a seemingly simple problem. I have a sphere with a particle hair modifier applied and I'd like to instance this multiple times using geometry ...
ALx's user avatar
  • 111
0 votes
1 answer
23 views

Why is the render view and the render output so different

What would cause the viewport render(left) and the output render(middle) - no compositing involved. The voronoi lines are sharper in the rendered output and the colors are different.
Jon's user avatar
  • 452
1 vote
1 answer
56 views

How to create a moving texture effect?

I would like to create something like the red electric board in the video using blender, but I don't know how to do it. I would like to know if there are any experts who can help me. Thank you in ...
SWORD JAPANESE's user avatar
0 votes
0 answers
46 views

why is the rendered view in cycles blurry but not in eevee

I've tried messing with a number of setting to get the rendered view to look decent using cycles but I gave up a while ago when I noticed switching to eevee was meeting my needs at the time. I am now ...
Jordan Klaers's user avatar
0 votes
0 answers
19 views

Cycles - Object instancing

I am trying to create a scene with instanced object. So far I found a way to do it like this: ...
OscarDev's user avatar
1 vote
1 answer
43 views

Cycles doesn't Render Particle Scale Changes... Is this a Bug?

When I create a particle system in Cycles, It looks fine in the viewport and in Eevee, but the second I render it in Cycles, it's like it forgets its scaling Texture ramp. Below is the texure Ramp Im ...
NotUnintelligent's user avatar
0 votes
0 answers
34 views

Is there any way to get rid of pixel bleed happening in UV Bakes that occur along the seams of an object?

I'm trying to bake a 4096x4096 image of my object (diffuse, normal, rough, ambient occlusion) and I'm using a UV that can't be changed (meant to be uploaded to a game tool) and whenever I'm baking, I ...
Troy's user avatar
  • 1
0 votes
0 answers
18 views

Glossy Direct Pass on Donut Too Sharp and Bright

I followed Blender Guru's donut tutorial Part 14 for compositing. But for the step adding Glossy Direct Pass, my black and white Donut is way too sharp and bright when compared to the tutorial one. I ...
moonss's user avatar
  • 1
0 votes
0 answers
23 views

Cycles cant render because of openimage denois

I am using blender 3.4 version and I couldn't render my image in cycles . I enable the denoise button in render tab and when i finally render in cycles its showing as error "built without ...
Yukthy Parthy's user avatar
0 votes
0 answers
23 views

How can this object change its volume based on the view mode I'm in?

I'm currently making a image based on a photo with CGI elements added to it. Therefore, I'm playing with holdouts and shadow catchers. But I'm having this really weird issue where the ground (that's ...
Doctor Famine's user avatar
0 votes
0 answers
10 views

black regions in cycle rendering [duplicate]

While rendering in cycles the supposed rooftops render all black so do the roads, the file is a collada imported from sketchup, I've trided - To solve this just select the object and press tab to go ...
brain's user avatar
  • 1
0 votes
0 answers
66 views

Does Blender 4 Cycles handle light differently?

I have a large file with lots of lights, that I created and have been working with Blender 3.6. When I opened it with Blender 4 I realized that renders are much different (Cycles); mainly brighter. I ...
joethelion's user avatar
0 votes
0 answers
38 views

Render not work like in the 3d viewport

So everything is working fine in viewport, the wheel attach with the car rigging in the viewport. But when i render animation by png single frame. The wheel come off the car start moving on it own but ...
Huy Tom's user avatar
1 vote
1 answer
55 views

Why doesn't my object material show in Viewport shader?

I am having trouble seeing my Boat Materials in Rendered Viewport Shader Mode. It is only showing in materials. Original project Pack.Blend Beige Wallpaper Jpg Wood Wallpaper Jpg
sunny visuals's user avatar
0 votes
0 answers
23 views

Compositing effects not applying in final render 3.6

Hello, I changed the color slightly when compositing, but when it renders it still shows the original image. Im not sure what im doing wrong, this is from an image sequence I rendered.
asunney's user avatar
  • 43
0 votes
0 answers
108 views

Render in 4.0 very long

I have been working on a scene in Blender 3.6 and it takes 1 min to render. When I open the same scene in Blender 4.0, it is long and estimate the render of the frame to 44 hours. I use Cycle. And I ...
LucasHug's user avatar
1 vote
1 answer
223 views

Some materials rendering dramatically different under Blender 4.0; is there a quick fix?

I recently upgraded from Blender 3.6.5 to Blender 4.0 and I've noticed that some of my existing materials are rendering differently, some subtle, some dramatically different. Is there something ...
WilburPost's user avatar
  • 1,035
0 votes
1 answer
40 views

Flat colours instead of textures

I'm experiencing a persistent issue with Blender on my MacBook Pro. No matter what material settings I use or whether I apply materials from Blenderkit, the final renders (in cycles) always appear as ...
CamiCamilla's user avatar
1 vote
1 answer
38 views

How to create moss or grass in the cracks of bricks

I want to solve this problem, I don't know how to create this landscape. I hope there is a nice person who can answer my doubts
nuo xu's user avatar
  • 11
2 votes
0 answers
25 views

Smoke Domain duplication over plane

I am new to Blender but I've learned a lot since I started. I am used to CAD design so I understand how a blender works as long as it's explained to me. I am having a problem where I want to make a ...
AnonymousAnti's user avatar
1 vote
1 answer
126 views

New Spot Light behavior in 4.0 no longer renders in a volume

I have a model of the Abyss Cab 3 Mini sub. The model has a number of spotlights that cast a beams in a volume. It all works in 3.6 but in 4.0 all my spotlights are broken and don't work like the old ...
NC Graphics's user avatar
0 votes
0 answers
33 views

In Shading how do I make lighting physics from Cycles work in Eevee?

I was following this YouTube video that teaches you how to make stylized trees using a simple shading build that can react to lighting efficiently. Unfortunately, this trick only works in Cycles, I ...
Stephen's user avatar
  • 301
0 votes
0 answers
9 views

Blender is not detecting Amd gpu compute on windows [duplicate]

I use windows I have ryzen 5 3400g with radeon vega but now i added rx 580 2048sp recentky but it shows in belnder that gpu compute is invisible.....no amd gpu waas detected..though my blender and amd ...
Adb Craft's user avatar
0 votes
0 answers
27 views

Help! Is this object rotation on a displaced surface a bug? I can't figure it out

I'm not sure if this is a bug or if I'm doing something unknowingly to cause the issue, and at this point I'm feeling pretty stumped: My render is not matching my viewport. I've checked all modifiers ...
Smashed_Pumpkin's user avatar
1 vote
1 answer
30 views

Cannot make lights visible in Render mode

I have set up area lights in Blender, with Ray Visibility set to check the Camera option. However, when I go to Viewport Render, the lights are not visible. I also have set the Scene Lights options ...
chiyopet's user avatar

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