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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1 answer
229 views

The background image don't appear

so in viewport I can see it but in render no, I checked everything, ask chat gpt, etc.
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0 answers
13 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 ...
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0 answers
17 views

Render my project is a big problem

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 ...
0 votes
1 answer
25 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 ...
0 votes
0 answers
10 views

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 ...
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1 answer
647 views

Importing multilayer .exr files to compositor for mist pass

I've rendered an animation using .exr multilayer.(Overnight on batch file, files look Ok.) Please correct me if I'm wrong, but should I be able to re-import the files and still use the Mist Pass etc? ...
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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?
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?
0 votes
0 answers
21 views

Floor material reflections. How i may reduce them?

How to reduce floor material reglection?
0 votes
1 answer
20 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 ...
0 votes
1 answer
27 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 ...
1 vote
1 answer
19 views

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 ...
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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 ...
0 votes
3 answers
2k views

Out of memory only on Render

I just upgraded from a 1060-3gb to a 3070 TI, so I'm not sure if I haven't set it up properly, but everything runs perfect and smooth in the viewport without nearly maxing out my card, however, as ...
-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.
1 vote
1 answer
594 views

Animation with unintentional black boxes

I'm making an Animation with a Motion Track. In my preview render everything is fine, but when I render my scene in png there are black boxes in some pictures. At the beginning of the animation these ...
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
27 votes
2 answers
8k views

How to get accurate colors with Filmic Blender

I'm loving Filmic blender for the wonderful dynamic range. But I am not able to get accurate colors - it always looks little washed out. I understand that it's due to the wider dynamic range of the ...
0 votes
1 answer
423 views

removing the white border in material 3d viewport when selecting alpha blend or alpha clip

i'm trying to get these leaves to show correctly in the 3d viewport (not render) with the transparency applied and no white border around the leaves, i had to choose alpha clip or alpha blend to get ...
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 ...
0 votes
1 answer
263 views

imported .dae and .fbx, I cannot see this textures on rendered view

I purchased a city model a couple years ago. I imported the model as .dae and .fbx to my Blender v2.9. As you can see in the screenshot, there are textures on buildings but I cannot see this textures ...
1 vote
1 answer
246 views

On a MacBook using Metal Is there a point to having both GPU and CPU checked in Cycles Render Devices?

but have been using Blender for awhile now. I have tried searching for an answer for this and even tried the Blender documentation. GOAL: to have Blender work as stably and efficiently as possible. I ...
1 vote
1 answer
2k views

Creating a portal effect in Blender 2.8

I would like to be able to make a portal effect in Blender 2.8. The idea is that you can look through a 'window' from one world to another. This could be achieved by looking between 2 scenes, or 2 ...
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0 answers
13 views

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 ...
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 ...
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 ...
0 votes
1 answer
512 views

Black artifacts on plane with procedural displacement

I'm trying out the procedural displacement in 2.8 with Cycles following this tutorial. The object has 100 subdivisions in addition to a SubSurf modifier, and one material with two shaders separated to ...
1 vote
1 answer
5k views

Texture becomes black in Cycles

I downloaded a 3D model from Sketchfab and it looked normal when I rendered it in Eevee. When I switched to Cycles, most of the parts of the texture turned black. From what I read, other people who ...
1 vote
2 answers
927 views

How to only render reflections on surface and keep the background transparent?

I want to render a scene with a glossy object and a glossy floor plane and I want it to have a transparent background. I can do it without the reflections on the floor but when I try to add the ...
0 votes
1 answer
54 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 ...
-1 votes
0 answers
14 views

emitter particles do not appear in the render [closed]

I have been creating particles using the emitter and animating them and there are several frems in which the particles disappear when rendering. I am doing the render in cycles with a Noise Threshold ...
0 votes
0 answers
35 views

Blender crashes when rendering (and it's not because any reason you might think of) [closed]

Blender crashes every time I want to render an animation. -I tried many different scenes, but it also crashes with low poly objects and low resolution textures -VRAM is at 16% usage when rendering -...
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 ...
1 vote
1 answer
2k views

OSL error whend rendering/previewing in Beta 3.5

Does anyone know why I get this error when trying to preview or render with Blender 3.5 Beta with OSL and light tree enabled? OSL group data size (2296) is greater than the maximum supported with ...
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 ...
1 vote
0 answers
30 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: ...
0 votes
2 answers
841 views

Can i stop rendering while i'm rendering in a video format

I am rendering one file of 200 frame it's been an hour an it is 30 frames. I am rendering it in a FFmpeg Video format. Can i stop rendering it but also it should be playable? Can someone tell me how ...
0 votes
1 answer
438 views

How to prevent black holes when baking diffuse colors?

I am trying to bake a high poly model onto a low poly model I created using Instant Meshes. However, when baking the diffuse colors I get a lot artifacts (black holes under the chin and in the eyes): ...
1 vote
1 answer
55 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 ...
0 votes
1 answer
555 views

Render over-exposed once exported

When I render my image, the render looks normal when viewed in Blender. However, when I export the image as a PNG, the photo becomes over-exposed. I don't think the compositor has anything to do with ...
0 votes
1 answer
237 views

Cycles renders alpha channel in black and grey instead of black and white

I have a lighting setup with an HDRI map and a few supporting lights. When I render my image, my alpha channel is grey and black and I can also see that my cryptomatte channels are semi transparent. I ...
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. ...
0 votes
0 answers
43 views

How to write a python code for changing color space of image texture attached to normal map as well as strength of normal map?

I want to write a code for changing color space of all image textures attached to normal maps as well as strength of all normal maps to 1.
1 vote
1 answer
678 views

Color not coming through glass?

I'm trying to do this tutorial to make the cup as shown in the video but I'm having problems with the glass and the color coming through it. the glass has light coming through it (Or it might be ...
2 votes
1 answer
279 views

Weird glass reflections

Trying to make a simple glass but the shading is clearly off (for reference it's similar to IKEA's POKAL glass). To add thickness I didn't use a solidify modifier because the outside geometry is a ...
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 ...
0 votes
1 answer
585 views

How to use environment map in cycles render mode?

I made a model that has some reflective surfaces. But since the model is alone in the world, most of those surfaces look flat and not shiny at all. What I want is to add an environment map, probably ...
1 vote
1 answer
303 views

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 ...
0 votes
0 answers
15 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 ...
0 votes
1 answer
44 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 ...

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