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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Make duo-tone illustrations by seperating colors

I'm working on a workflow to make duotone illustrations. I like to work with emission shaders for this, because they eliminate all lightbounces, thereby it requires almost no rendertime and gives me a ...
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1answer
38 views

Rough transparent Plastic Material

I am trying to recreate the FN P90 submachine gun. I followed a tutorial on modelling and UV unwrapping. Now I tried adding procedural Textures to it. As you can see, the clip is made up of a rough ...
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Rough Metal Material

I am trying to recreate the FN P90 submachine gun. I followed a tutorial on modelling and UV unwrapping. Now I tried adding Procedural Textures to it. The gun body is made up of a rough finished black ...
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Volumetric lighting clipping / not displaying in cycles (not camera clipping related)

Im following a blender guru tutorial on clouds, but my displaced plane does not light properly once set as a volume (neither scatter nor principled volume works). You can see it working for him at 20:...
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When I render in cycles my object is pink

My object has a pinkish shade to it and I don't know why, when I open a new project it works fine but in this project it is like this. I tried to check for missing files but with no results, I applied ...
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Cycles high angle face artefact [duplicate]

I have a sun lamp at 90 degrees to a curved mesh. In Eevee, the shadow renders as smooth. However, in Cycles, I get these black artefacts - entire faces on the shadow edge are black. How do I fix this?...
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How to cast object shadow only and mask the shadow of the object with the object?

I have an object sitting (clipping a bit) on the plane. I can achieve the shadow only via the node tree. But I want the object itself to mask the shadow. I mocked up what I want in photoshop for ...
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Normal map makes the texture too dark at an angle?

Normal map makes the texture too dark at an angle. If the light source is placed south or left of the plane, the textures is visible. Otherwise, the entire wall looks dark. Does anyone know the ...
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How do i get back rigify buttons blender 2.91

I have a working rigify rig but all the control buttons for ik/fk are gone in properties panel. How do you get them back
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1answer
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I am getting strange shadows when using hair cards and cycles

I am getting strange shadows when adding view my hair cards in Cycles. I think it occurs when the hair cards are overlapping but im not sure. Anyone knows if there is a fix?
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Why is it when I render I Get a blank grey screen

I've been having this problem, and I don't know why. ill just give some context. I had imported this model from SketchUp, along with the camera view from there. It was working fine, until I decided to ...
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177 views

Reducing viewport framerate

When I am in viewport → render mode, how can I reduce the re-render frequency of the viewport in Cycles engine mode? So instead of it starting to render again when I slide any attribute in the ...
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Cycles render time increases drastically upon adding simple planar backdrop

I have made a simple studio setup to showcase a toy car model. In Cycles I am getting an estimated render time of about 1 hour which is unusual for a scene this simple. Upon making tweaks I realised ...
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Any way to get a multilayer video?

So I have an animation that I am trying to render in cycles. It takes about 20 mins per frame (my pc isn't amazing) and is 200 frames. I want to render the animation overnight, close the program and ...
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1answer
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Weird behaviour: A simple material renders fine on one mesh but not the other

I have a weird issue with Cycles in Blender 2.92: This comes from a larger project but I was able to reduce it down to this small example. The triangle is copied from the project I had issues with and ...
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1answer
27 views

how do I render my animation and the rest of the scene seperately

I have a scene that scatters over a million grass plants on a landscape and also an animated river that runs through the landscape. As the river is the only thing hats animated is there any way I can ...
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Creating transparent glass with an image texture w/ alpha channel

I'm trying to create a glass block and have it so the light color changes according to the glass color. I want a lighting effect like the blue glass (texture-less) block, but with the "streaks&...
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I want more fireflies [duplicate]

Haha, that's something different for once. Any good suggestions how to achieve an esthetic grain on renders in Cycles; to give it a retro and analogue vibe.
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Simulating Color Doppler with Blender

I am preparing a presentation for radiology residents. I'd like to use Blender to explain some caractheristics of color Doppler ultrasound (US). Basically, Doppler US allows you to see the blood flow'...
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How to remove lighting glitches in cycles render?

When rendering in cycles using an HDRI, I will get black boxes that emphasize the faces in my mesh. How do I prevent this? It makes it look terrible.
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22 views

Coloring fluid simulation in Cycles according to speed and direction

I am trying to create a fluid simulation where the color of the fluid particles will change according to their direction AND their velocity. In the beginning, the fluid moves horizontally in the +X ...
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1answer
300 views

Hide Objects behind Specific Plane

I am trying to find ways to hide objects behind specific planes. That is a "tv" with a cube behind it, I already have it so when you look at it front on, the back disappears. However the ...
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Added hair particles don't show in object mode

As shown in the pictures below when I add hair particles via the particle editor they aren't visible in the object mode, the same goes when I tried rendering it, the hair wasn't visible. I'm thinking ...
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Poor metallic reflections

I don't know whether this metallic reflection is correct. It seems that the glasses reflection on the table gets incorrectly broadened out to a fixed distance, rather than a smooth falloff. Here the ...
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1answer
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My donut project can no longer render, computer freezes. Cannot fix!

I was following blender gurus tutorials and got to the part where I textured the cake area of the donut and when I try to render it, nothing shows up and it freezes my computer and I have to turn my ...
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2answers
55 views

Blender Exposure not affecting output on OpenEXR File

So I'm using this physicall starlight & atmosphere addon, a wonderful addon, but it requires to change blender's addon to -6 to look good. I'm working on VFX industry, so i need to renderout ...
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Cycles reflective materials not rendering transparency correctly

A reflective material in Cycles will reflect the world color even if the world color has an alpha of 0. If the world has a transparent material, the reflective material will show black pixels instead ...
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How to properly denoise an animation [local and renderfarm]

I have a project for my college assingment that has to be ready at end of march. I am still "new" to blender but I try my best in every way, so: I have a scene with 400 frames that uses ...
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Why is my animation appearing jittery [duplicate]

I made an animation using the cycles renderer but the end animation is jittery, and I don't know why. I've attached the final video file link here. I'm using the latest 2.92 version of blenderenter ...
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Animation doesn't show up in render. Issue with image sequencer

I broke a glass in blender and initially I got the renderer animation in image sequence, later i did few changes in animation and now the renderer is not giving the animation in image sequence. Only ...
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2answers
18 views

Particle System Removes Landscape when it is rendered

Simply put, I am trying to create a Mars scene but when I go to render an image, the landscape disappears. I am using Blender version 2.92. I am using two particle systems to spread rocks of various ...
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Updating Images and Render Speed

I'm rendering an animated scene in cycles and I noticed that every frame it was being rendered my hdri was being loaded. This doesn't make much sense to me the hdri is static, isn't it a waste of ...
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1answer
81 views

Blender - How to taper a bevel?

I am trying to mimic the design of this piece but I am stuck at creating the corners of the model. How would I bevel an edge in such a way so that the bevel tapers in like shown in the picture? How ...
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1answer
81 views

How to create a realistic shader for french fries?

I'd like to create a realistic burger and I don't get how to create a shader for my french fries: I tried adding procedural textures and displacements, subsurface scattering but unfortunately the ...
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1answer
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Blender - Subsurface Modifier causing extreme pinching in L-shaped corner

I am working on creating an ISO enter keycap in Blender. Everything was going fine, until at the end where I applied a Subsurface modifier. Once I put the modifier on the mesh, it causes extreme ...
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1answer
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How to set specific sample spacing (meters in between each pixel) for a Blender Cycles Render

I'm trying to set the resolution sample spacing on my rendered images as the number of meters in between the center of each pixel using Cycles render engine. For the sake of the example, let's say I ...
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How can I increase the direct light intensity and keep the indirect dark for a particular shader without the compositor?

I’ve been banging my head trying to figure this out. In the attached image, you will notice that there are two versions of the black glossy shader. On the top is a normal glossy shader (zero roughness)...
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Problem during rendering with Cycles!

I recently used blender 2.91.1 and everything was fine, I updated its version to 2.92.0. Yesterday I went to render a small scene in the Cycles and saw that something was not right. The GPU usage rate ...
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1answer
41 views

Volume shader looks solid from outside

When I plug the scatter volume node into an object's volume, it only works correctly if the camera (or the viewport) is inside the object. If the camera is outside of it, it appears a mist-coloured ...
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1answer
27 views

Why is Cycles causing this distortion in displacement of a cco node?

This is a very simple two object seen. I'm using CCO textures setup per there instruction. In eevee, it looks normal. In cycles it looks normal in preview view, but in rendered view it looks ...
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Recreating Odyssey Aatrox Sword (cycles)

I am very new to blender and now working on attempting to recreate the Odyssey Aatrox Sword. I am satisfied with the work I have done with the modeling, although it is far from perfect but, I have ...
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1answer
66 views

2.92 Fire & Smoke Definition

Using 2.92, trying to work on outdated tutorials and struggling. I have my subdivisions set at 1052 so there’s no reason for the fire and smoke to be blurry, but it still is. There’s no colour mapping ...
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Baking a diffuse map replaces other image textures

so i made an appartment with a bunch of materials, and i wanted to make it just one material. It worked perfictly as expected, i added the image i was going to generate in every material like this (...
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How to make mayonnaise hang down in blender 2.92

I am creating a 3d birger in blender 2.92 using cycles renderer. I want the mayonnaise in the burger to hang down like real life but I don't know how. Should I try to model or sculpt it? Please help. ...
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Ambient Occlusion - Rendering Artefacts

I'm trying to render this roof, but I just can't do it without artefacts It looks okay in the viewport, but the rendering has the black triangles (as in the picture). I render with Cycles. The ambient ...
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1answer
56 views

God rays in viewport but not in render

Trying to render a scene with a UFO with god rays coming out the bottom. Working in Blender 2.9 In my viewport it has light But in my render it doesn't To get the god rays, I added a hole at the ...
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1answer
19 views

Compositor Blows out Image

I am exporting into half EXR's with ACES_cg (would full help?) But as you see in the second image the compositor output is blown out. But when I take a look at the EXR it is not blown out but still ...
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How to create a shader for mayonnaise?

I am creating a 3d burger and do not know how to create the shader for the mayonnaise. Tried to use the principled shader, tested various IOR settings, messed around with reflection, other shaders and ...
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1answer
31 views

Deformed geometry on render

I'm new to Blender and I've been following the "How to Make Interiors in Blender (Tutorial)" by Blender Guru and everything was alright up until some point (which I didn't realize in time) ...
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Object floating in cycles but not eevee

For some reason, objects appear to be floating in cycles, but not in eevee, I'm sure the object is aligned with the flood because the base is clipping through the ground in viewport mode. Cycles ...