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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516 views

What type of normal and specular map nodes is correct for these textures

I am creating a plugin to import some model files from a game to blender, with all the textures and materials created automatically. I am creating a principled bsdf node from python and assign ...
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Why is cycle taking only saved texture to render when EEVE takes the current texture? Possible to change?

I was experimenting with multiple uvmaps/textures painting... today, and I noticed something very disturbing (I lost like 1h on that thinking that my nodes where not configured properly...) Basically, ...
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How create a map based edge wear shader?

So basically what I have done is made a high poly bake in blender, now using said bake, I want to add edge wear. That is have procedural texture detect the height in the maps and shade the maps "...
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How do uninstall every single trace of Blender?

When I start Blender, the console pops up and the Blender windows goes into full screen, but the UI is not loading and the whole screen is gray. I recently switched my AMD card for an NVIDIA card. I ...
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My material behaves differently in material preview than in rendered view

I have a material which looks different in material preview than it does in rendered mode or in final cycles output. I'm using cycles for rendered mode. Blender 2.92.0. You can see below that the ...
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- Blender Texture Fail Cycles Vs Eevee

For whatever reason, the texture will display on Eevee Render but not Cycles Render? What is causing this and how do I fix this?
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520 views

Seams are correctly marked, UV's are messed up

I have retopologized a shotgun and marked all the seams where they are supposed to, and then Unwrapped it, and instead of getting nice UV's, i get this: Here are the seams: I have tried Applying the ...
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3answers
27k views

fluid in a glass

I am at beginner level. One of the projects I am doing is to create a glass with fluid. Like a glass of water or a glass of wine. Now I can find quite some tutorials on how to create the glass, but ...
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How to remove reflected light from glass? [Blender 2.92]

As you can see, at the image above, I used 4 lights to illuminate my scene but their area light squares is showing up and I don't want it to show up. What can I do using Blender 2.92?
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Texture paint in cycles

Helo, i am having this weird problem. I watched a few paint tutorials but couldnt find a solution. I am trying to paint burn on my walls , Made 2 UV maps and everything but when i paint on my wall, it ...
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Cycles renders a random alternate perspective

I have a strange problem I cant find remedied here or anywhere online. In the Eevee viewport (where I set my camera up) my meshes appear exactly as I intend to render them. When switching to Cycles ...
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1answer
124 views

Rendering scene background in only some frames of an animation

Is there any way to render a specific scene, say the background, during only the second half of an animation while the foreground renders the entire time? For example in a 100 frame clip could I get ...
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1answer
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Determining if Cycles light rays provide direct illumination or self-shadow

I am looking to render Saturn and its rings. The sun illuminates the diffuse material of the rings on their sunlit side but their backlit side needs to have an emissive shader. However the rings must ...
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1answer
595 views

Blender Cache Error. 0 frames in memory Cache is Outdated

Hi, so for the last couple of days i've been trying to bake hair particles from a tree I modeled but I keep getting this error that says "0 frames in memory (0 B), cache is outdated!" and I can't ...
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22 views

Volume emission without texture when using UV coordinates

I am trying to follow this tutorial for creating laser beams in Blender, but I can't get the Noise Texture to work as the Emission strength. When I plug the Emission output into the surface input, the ...
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112 views

Why is the emission shader clamping even when I increase the strength to crazy high values?

I have made a pretty complex scene in Blender 2.82.. I used an HDRi to barely light a scene(strength 0.05).. I just wanted my scene to be lit by street lamps with an emission shaded ball inside the ...
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Bad behaving particles

I found great tutorial from Tutor4u: Blender Beyond Basics #4: Fun with Transformations - Blender Tutorial But somehow I end to odd results with that. Here I have five different frames: As you can ...
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out of memory while rendering and sheep it is not rendering the specific material

my problem is that whenever I try to render a video on my laptop it says out of memory so I figured out that using a render farm is the choice it renders on the render farm but the problem is that two ...
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19 views

My Material Viewport shading goes black

So this has been going for a while now and its becoming a real problem for me. Heres whats happening. Material Preview: Rendered Preview: Solid Preview:
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2answers
22k views

Real depth of field in blender, without post processing

Last time I checked, blender could only render depth of field effects in a post process pass, using the "Defocus Node", which seemed to get it quite wrong. Is there now a way to include rays across a ...
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1answer
64 views

Glass casting shadows and not looking real

I'm trying to make these glass planes on the ceiling but something weird is going on with the glass shader. I tried couple of different ones but nothing seems to do the job. I'm talking about shadows ...
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1answer
22 views

Why isn't the shine/gloss showing on the character when I render?

I don't know why the character is appearing like it has no textures. I made it so it should have gloss/ shine to it.
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2answers
21k views

How do you animate image texture materials in blender cycles with keyframes?

I have an image texture material on a mesh already in blender cycles 2.75... I was wondering how to change the material with keyframes so it changes to different pictures in the animation... I tried ...
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1answer
41 views

Blender Motion Blur deactivation for certain objects doesn´t work

if I have set Motion Blur for rendering and deactivate it for a certain object in the object properties, the object is still blurred. The scene is a tracking shot from behind towards a boat that is ...
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1answer
25 views

Shadow not showing in Renderer

I have a problem where the shadow is not showing up during the rendering scene, even though the shadow shows up on the viewport. On viewport On Rendering I don't know why this happens, any help would ...
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Bake Displacement Map from Tangent Normal mapped object

I have a model from a game that I want to 3D print. The model is not high poly, and a good deal of its surface detail comes from a tangent space normal map. I want to apply this surface detail to the ...
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Change 2 colors of a texture among the 4 colors of a texture in Cycles

I have a texture issue with my character. Indeed my character does not have the right colors except black and white. I tried changing the colors of the textures with Cycles but not sure how to do it. ...
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1answer
53 views

Why my texture becomes black in certain regions?

I'm trying to implement some kind of Ian Hubert style. I use a PBR texture for the wall, mixed a brick PBR texture with a moss PBR texture and used some other image textures for the windows and such. ...
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27 views

Cycles bump node behaves weirdly non-linear. Is there something wrong with its implementation?

Cycles and Eevee don't agree, and I think Cycles' implementation of the bump node is wrong. Where do I go to report this? This is why I think so: I made a tool that "carves" a bump map I ...
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1answer
16 views

Renderer not making any progress

I wanted to make a simple animation of the camera approaching the head, the head losing its pupils, then the eyes glowing. When I looked at the project in rendered view in the layout tab, it worked ...
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3answers
19k views

Iridescence In Cycles?

Is it possible to create an iridescence shader in Cycles? Specifically for something like DVDs, soap bubbles, engine oil, etc..
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Objects change shape during render

The wire frame cages made from Ico Spheres with a subdivision modifier and a wire frame modifier change during rendering. Happens in both evee and cycles.
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1answer
148 views

FlipFluids & Ocean modifier as displacement. Baked frames in 3D view show all movements but rendered animation not. Manual keyframe ok. Any solution?

I have created a FlipFluids simulation in Blender 2.81 ( 2019-11-25 21:45) and added an Ocean modifier in displacement mode to the fluid_surface. Then I have baked the complete sim from within ...
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14 views

Black patches appearing on glass materal in cycles in viewport preview

I have a glass material applied to an object I am rendering in Cycles, but whenever I render it the material generates these black squares around it. the Object is light by an HDRI, however even ...
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233 views

How do I properly set up Subsurface Scattering for a human skeleton for Cycles?

I have a 3D-model of a human skeleton with 8K textures and would like to properly set up Subsurface Scattering and the materials. I've looked around but I'm a little confused about which sockets to ...
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1answer
369 views

Mesh emission strength to Area lamp strength

I've three emissive mesh planes in my scene which I'd like to convert to Area lamps. I've set my new Area lamps to use precisely the same size, location and strength as the planes were. But when I ...
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1answer
79 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 ...
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1answer
49 views

Spotlight Not Illuminating Inside Building

I need to render this scene where the sunlight is entering though the windows and making shadows, I added a spotlight but it seems that the light is only working outside, I have no idea why. My ...
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1answer
146 views

2.80 Cycles Render Devices Tab empty

Just installed the latest release 2.80, July 30 2019, under System the tab Cycles render devices is visible, but empty. So Cycles is not available. Win10 64, GTX1050ti and onboard GPU, latest drivers....
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1answer
36 views

Environment behind window for interior renderings

I’m mainly interested in architectural visualizations and have also completed a few projects, but there are things that I despair of every time and that is the environment that can be seen through the ...
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3answers
1k views

Why are these tiles appearing in my final rendered image?

I'm rendering an animation (as an .exr image sequence) and some images have these tiles appear on the final render. It somehow only happens on surfaces that are closer to the camera. It looks like ...
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How come my shaded smooth model looks sharp? [duplicate]

My model is shaded smooth, and autosmoothed. But some edges/faces look sharp. How come? And how do I fix it?
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3answers
8k views

How do I get the Glare node to output transparent instead of Black background

This is what I have so far: The rendered image has a transparent background, but the glare filter creates an output with a black background, so after merging the two togheter, the background turns ...
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0answers
38 views

blender crashed twice during long render, how to detect and remedy reason for crash?

I am brand new to Blender. I'm running Blender 2.8 on Ubuntu 20.04. I've been working through an explosion tutorial. I have a simple-but-glorious explosion using only a single emitter and I've been ...
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1answer
373 views

Invisible wall that doesnt appear during modelling, but on rendering

In the blend file attached, I want to render rgb frames at various camera viewpoints. When I render a frame at the camera pose shown in the screenshot (facing the counter), only a white image is ...
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1answer
31 views

Can’t get freestyle to render

I am trying to render the wire frame of (any) model using freestyle. I have followed every tutorial I could find, and no matter what settings I check or uncheck, the outline never renders. I have ...
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1answer
27 views

Object Particles not rendering

As the title says, I'm having a hard time rendering my particles in cycle (but they do appear in Eevee and viewport) I checked the layer, the items visibility in render, the cameray ray, the emitter ...
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1answer
239 views

Normal Baking Error

I've been running into difficulty baking normal maps for an enemy intended for my UE4 third person shooter project; . The model uses 5 different PBR materials, and a combination of 1024 and 2k images. ...
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1answer
88 views

Animation only renders one frame

I am trying to render an animation but it only renders one frame and stops right before its done rendering the second frame. It always stops with two tiles remaining. My frame range is 1 to 140 and ...
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2answers
3k views

Poliigon textures reflection map with PBR

At the moment Im using Blender 2.78. Im using Blender Guru's PBR Workaround for materials. In the scene I'm working on I use textures from Poliigon.com. In the Poliigon help guide it says that ...