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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Motion blur light streak effect looks angular and jagged
Trying to get a smooth motion blur effect for some particle lighting systems I am playing around with. However, when looking at the rendering, the streaks of lights are all jagged and angular, they do ...
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Fixed stream of particles that represent pride flag?
I've been wracking my brain on how to get a stream of particles to emit from a 5 face plane and have the texture that is on the faces. I tried using Particle Color based on where the particle is ...
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Glass and Transparency - Wine Bottle
I have been following a wine bottle tutorial on skillshare.
My problem is that a mesh liquid inside and bottle have this weird reflection using Cycles.
I already flipped normals, merged by distance, ...
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Unnatural shadows in corners with Cycles
The problem is that in all my renders the shadows in the corners, where objects/surfaces touch each other, look unnatural. The objects look "floating" above the surface, or "detached&...
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How to make glass refraction looks smoother?
I have this model for a glass bottle and when I preview or even render the scene out, the refraction has weird straight edges and doesn't look smooth enough. I already have applied subdivision and the ...
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Displacement Looks Different in Render compared to Viewport
I am trying to do a simple electricity plasma (lightning) simulation using displacement modifiers. It looks completely fine in the viewport but completely wrong in render.
Not only that, but the light ...
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Transparency layering in cycles
I am working on an automotive project and the client wants me to show a translucent model of a car on top of the engine assembly. The issue is with transparency layering of cycles. I know cycles is ...
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How to tweak the hue of an existing shader?
in a project i need to work with an existing shader group that output a shader data.
The entreprise pipeline does not authorized us to change the content of this nodegroup and there’s no hue ...
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Is Cycles capable of generating a proper ambient-occlusion render pass?
I really hope I'm doing something wrong: the ambient occlusion, in my knowledge, should be a calculation that's more related to geometry and light direction and directional shadows.
I'm attaching two ...
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I have a weird shadow / occlusion glitch in my animation with Cycles
I have a weird "1 frame" glitch in my animation causing an unwanted occlusion or shadow.
You can see it in my gif in the mouth, and behind the creature a shadow trail on the picture.
Motion ...
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Completely different render image from viewport Cycles
Hello below I have what is supposed to be the rendered image, and the second image is what is being rendered. I am not sure why this is happening, assuming a certain setting in my render properties. ...
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How can I render animation in seconds? [duplicate]
I am using cycle and I had rendered my animation thinking it would take less than a minute, but my render time is an hour+. I use a MacBook Air M2 2022. My sample count is 8192, while my noise ...
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Blender BPY get random object location but ensure object still by camera?
I am trying to randomly place an object in my CYCLES scene. The below function gets a random location within the camera's FoV, but there is a problem: if the object is too far away, it will not be ...
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Mist pass issue with Megascans plants assets
I have an problem with Megascan plants assets not behaving correctly with the mist pass.
It works with other plant assets (graswald, polygoniq, etc...).
I cranked up the transparent and transmission ...
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Random rectangles 'missing' when rendering with optix + motion blur
When I render a scene that uses motion blur with optix, there are randomly rectangles/sections where it skips straight to the background. Its random and only exists in some frames, and does not appear ...
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Can’t render animation
When I render as animation the render doesn’t work, the window appears but there’s no image or any statistics of the render. What I find weird is that I can render a still image perfectly fine and I ...
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I want to achieve specific kind of lighting for my render but cant get there
I've been trying to figure out a solution, but I can't seem to get it to work.
I almost got it to look the way I wanted, but it seems to lack natural lighting and such. I'm new to Blender so I don't ...
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Pc keeps restarting during rendering animation
I im trying to render a scene with 160 frames. But when i come back to check the progress after sometime i see that my pc has restarted. This has happened several times now for this same project. Ive ...
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Saved Image Output Missing Layers & Compositing
I'm having some really odd issues getting a render to output to files correctly. I have a really simple blend. A single object with a fire sim. There are just 9 frames and I'm rendering out the last ...
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Weird Ocean Lighting in Cycles Render
Thank you for reading this. I'm making a ocean scene in blender, it looks perfectly find in the actual layout tab, but when I render it the ocean lighting just turns white. I've attached a screenshot, ...
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Texture disappears when rendering in Cycles
I am trying to render a scene in Blender using the cycles engine, and i have here a texture with transparency. First it was rendering black because of it but then i fixed the problem with a ...
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Render Passes with Different Environment Textures in Cycles?
Blender Wizards,
Does anyone know of a method of using render passes to export with different environment textures affecting different objects/materials? I'm using Cycles.
In my scene, I have an ...
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How a CUDA works
I have activated CUDA. Im having 24GB RAM for my system and 2GB NVIDIA Graphic card. Is CUDA a GPU rendering, that means it will render with 24+2 GB RAM or just 2GB NVIDIA Graphic card and CPU means ...
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Is it possible to load a games quality with cycles before being played?
Would it be possible to use cycles to load a game if the games assets were loaded before the game was played? As an example, if I were to make a game where you sit in one place in a 3D room and all ...
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Laserlight - Fog Density?
Trying to make something like those laser lights.
For the laser itself i found a lot of stuff on youtube, but when it comes to the details im not sure. Its just consistent in those tutorials when it ...
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Set color of background grid when using a sky package
When I render my scene, a part of the horizon is rendered as black.
I am using a sky package (Pro lighting skies) in order to set the sky but the camera also captures the "grid" background ...
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Blender how to have different pictures for hdri light and background of a scene?
i have a question about the background in a blender scene. i have a scene with a house and with an HDRI in the scene world that serves as a light. so far so good. but now the hdri doesn't look good as ...
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Texture not rendering in Cycles engine
I have a scene which I have made:
But when i go to render it in Cycles. The table loses it's texture (which I custom made through Blender's shading workspace.
Why is my table texture disappearing in ...
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How to have only the shadow of an object into its own render layer?
Hello people of stackexchange,
I'm working on a more complex setup but want to understand the basics, so I'll use a simple example.
I have a plane and a cube. The cube is casting a shadow on the plane....
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Alternative to motion blur for deformed objects?
The documentation for Cycles in Blender 2.79 is very explicit about deformation motion blurs:
An object modifier setup that changes mesh topology over time can not render deformation motion blur ...
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Geometry Nodes result not rendering
I created this scene using geometry nodes. It looks fine using cycles in the viewport.
However, as soon as I render it, everything disappears and only the background plane is visible.
Every single ...
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Segmentation Fault Only during Blender Rendering
I have a system where I create the blender files on my laptop (mac) and sync it through dropbox to my Ubuntu desktop. This has been working fine, but recently I have a complex file where I have a few ...
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Smoke sim appearing in solid view but not in Render - Cycles - Blender 3.5
I'm here again trying to make a quick smoke sim with a "steam" like appearance.
I followed a guide and this is the second time I use this sim. However, the first time I had to switch to ...
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HDRI image in scene world background is too large to see when rotating
My HDRI image in scene world background is too large to see when rotating. So I don't see where the sun is from the picture when I rotate the HDRI. is there a solution for that.
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Glass Bottle under water
I am new here and in Blender... I have a problem with my work.
I made a Glass bottle with a message inside and placed it under water. I want to get something like a bottle in the ocean. The problem is,...
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When using Metarig, render result looks swollen
Hello,
I'm trying to use Metarig, which has worked quite well so far.
But in render preview and rendering, the face looks swollen.
I render with Cycles and Nvidia Optix.
If I set the render device to ...
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Why doesn't motion tracked object show in render?
I copy and pasted an object in one blender file and imported it into a motion tracked scene. However, when I click "render image" the motion tracked object (robot) does not show in the ...
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Blender does not render a scene that was previously rendered successfully
Blender no longer wants to render a scene that I have previously rendered successfully. Suddenly, when I start the render, the whole PC freezes and I can only restart it with hard reset. I assume it ...
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How does shadow-catcher work mathematically?
I know this workflow: mark object as shadow-catcher, multiply shadow catcher pass with background, alpha-over the image and you are done.
I'm interested in understanding how exactly does the Blender ...
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Animated mesh is glitching in cycles 3.5
I never encountered this problem before but on two different projects some armature animated meshes start glitching (weird lines) on random frames in the render (not the viewport), as you can see on ...
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Render time increasing exponentially each frame
I’m trying to render out a complicated scene, with motion blur, depth of field, volumetrics and lot of vertices.
When rendering image sequence, the render time drastically increases from frame to ...
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how do i delete .blendcache files from desktop?
I seemed to have deleted the files associated with the '.blendcache' files that can't be deleted or moved.
Any ideas are welcome.
After some checking, I think the files are generated by using the ...
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Blender renders, but the saved output - and render window - is empty; can't render more than HD
It's a simple scene, two spaceships, an animated camera, sun and 18k HDRI from TrueSpace (blender addon); 580k polys. It was working great before, but during a long render - Cycles GPU - to RGBA 16bit ...
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Black render on Cycles [duplicate]
THIS IS NOT A DUPLICATED QUESTION
As mentioned, I have tried everything under Render result is completely blank and nothings has worked.
I'm using blender 3.0.1 to render a scene. It renders properly ...
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My cycles render gives the wall unusual black dots and glasses reflects the HDRI image?
When I render my images in cycles , the walls get an unusual shading like black dots( are those noises?) and also my glass reflects the Hdri image
How can i correct this?
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Dark regions of render looks distorted / blurry [duplicate]
Rendered with cycles with 2048 samples and 0.04 noise threshold
What are the causes for these distortion?
Besides adding additional lighting around them, are there any methods of improving these ...
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Cycles z pass is not expect (1.09 times larger)
I am trying to generate synthetic data using blender for disparity prediction. I used z-pass in Cycles for depth ground-truth, but I find out that the z-pass value is always 1.09 times larger than ...
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Loading VDB files in Blender using command line
My blender scene has a Vdb volume object, and I am rendering it in cycles. I wish to perform the rendering using command line (in hpc). I am looking for a command to specify vdb files in command line ...
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How do i render a image from my active camera when i have a sequence with an animation?
Hi there I already did some projects in Blender but now I am stuck.
I always rendered still images out of blender, now I started to make a small product animation which I also could render as images ...
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Details missing in the camera view
I'm working on a book, the problem is that when I see the rendering not from the camera POV, it's possible to see more details, like the shadow between the pages. In the camera view the shadows are ...
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