Questions tagged [volumetrics]

Questions about rendering with volumes (smoke, fog, etc.). Use this tag for both Blender Internal and Cycles.

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1answer
36 views

How to avoid transparency behind the volumetric world shader?

I have a volumetric shader set up for the World. But when I render, I see a transparent background behind where the density is too low. Is there a way to remove transparency and add a background ...
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3answers
742 views

Volume scatter without rendering the volume object

Below is an uncomposited version of my Earth render. You can see the light haze around the edges. That's the atmospheric scatter sphere that's a little bigger than the Earth itself. Once the light ...
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1answer
574 views

How to make clouds in cycles?

I have a sci-fi scene with a floating platform and a camera that pans around the platform. I want to add clouds underneath. Since I am going to pan around the platform, I can't use an image texture ...
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1answer
313 views

Reverse explosion with voxels

What I have: an array of vertices obtained through a simple Sverchok node that states the position of each voxel(many thousands of them). What I would like to do is to create a reverse explosion ...
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1answer
747 views

Fire looks very low resolution [duplicate]

I have asked this question before and no one has helped me. I've been given the wrong answer and when I tried to explain that there was no reply. But anyways what my question is, is that I work in ...
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1answer
82 views

Cycles Volume Scattering totally black

I have an issue with volume scattering in cycles. I modeled and textured a model in Blender Render engine and moved it to the Cycles Render engine for render, I ran into a problem with volume ...
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1answer
155 views

Fragments when rendering Volumetric Lighting in Eevee

Ive tried rendering several shots using Volumetric option in Eevee but only in one case I encountered this error, where my volumtetrics get all choppy and fragmented. I tried all sorts of settings, ...
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1answer
110 views

Sun Beams node. Where do the rays come from?

Creating Sun Rays is always a struggle. Today, I am trying to create rays coming from below around silhouettes produced with transparent PNGs - reusing several tips I found on here. And it seems ...
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1answer
609 views

Cycles: create water using smoke / volume

I am trying to simulate a waterfall using this tutorial: https://www.youtube.com/watch?v=KTMr7ls7J1Y I got a scene with smoke that acts sufficiently accurate as water pouring down. I am able to ...
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1answer
377 views

Creating Volumetric lights from a mesh in cycles? [duplicate]

is it possible / / how do i make an object give off "godrays" so that, for instance you can see it through slits in a wall? I'm trying to make this, (an icosphere with a sphere inside, the inner ...
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1answer
321 views

How to increase light samples for world volumetric scattering only

How do I increase volumetric light samples without increasing pathtracing samples for physical surfaces. I want to improve only that part, that is the samples for the scattering through the medium, ...
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3answers
742 views

Volume Scatter Causing More and More Fireflies with More Samples

I am trying to create a cloud of dust, and the volume scatter is creating a large amount of fireflies. However, unlike the other posts I've read, increasing the samples creates more fireflies, and as ...
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1answer
977 views

How to create volumetric/smoke material in blender game engine?

I would like to create a hologram of sci-fi ship. I created materials in blender render and hoped, that they will be easily used in game engine too (my mistake). And I have been unable to create the ...
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1answer
1k views

cloud generator add-on with cycles

I'm trying to have a helicopter flying above some clouds. The most elegant way to create clouds that I've seen is using the cloud generator add-on that comes included with blender. When rendering with ...
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1answer
281 views

Why do my spotlight's dimensions differ between rendered and non-rendered view?

In an animation scene of mine, I render most of the scene in Cycles and only the volumetric light in BI using a fully linked copy of the original scene where only the layer with the spotlight is ...
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1answer
34 views

Why is volume losing color when hidden behind glass and how do I make it keep its color?

Everything is done in Cycles. I created a very simple blue volume and gave it to a cube. I also added a principled shader to make the outside look like shiny glass. The cube on the left has only ...
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1answer
37 views

Volumetrics Tab Has no checkbox

I'm following a tutorial to make fog in my scene. I've tried adding both the principle volume and Volume scatter node to the material output. neither generates fog in the render view or lookdev. It ...
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1answer
26 views

rendering volume the right way?

So I am rendering some abstracts and I have never really rendered a scene with volume and I am noticing how much noise it can create. I have searched around but can't seem to find a smooth setup for ...
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1answer
105 views

Copying these fluffy clouds?

So, there's plenty of cloud questions and tuts out there, but none seem to give me what I want, or work in 2.8. The guy I followed, this is what he came out with. The top left is his render, the top ...
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1answer
65 views

Volumetric lighting scene

Hello everyoane. What settings should to apply to the light point to create in blender a scene light this? I come with a past in Cinema 4D, there was very easy, just set the visible light to ...
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1answer
97 views

Smoke renders, but not fire in 2.79 Cycles. However, both are fine in rendered viewport [duplicate]

I have a scene with a rocket launching, so obviously fire is pretty important. However, after setting up the shaders and simulation, I can't get the fire to render. Strangely, the smoke is still ...
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1answer
826 views

Using Transparent Background with Volume Scatter

everyone. I need your help with. I'm trying to use the Volume Scatter feature with a transparent background in Blender Cycles. I have transparency turned on if that's what you are wondering,but every ...
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1answer
484 views

too much light causes noise [duplicate]

Usually happens the opposite.. but today I have too much noise caused by too much light! (at least, I suppose It is because of that...) I have also Volume scatter and absorption applied to a ...
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1answer
405 views

Rocket engine thrust. Point density node?

I'm trying to create a futuristic missile/rocket seen where a missile is flying with exhaust spewing from it's tail. I thought I figured out how to make a cool looking blue exhaust by using a particle ...
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1answer
114 views

How can I control the intensity of the light when using volumetric scattering?

I'm in the middle of creating a composition of city covered with fog and also with sunlight falling on building roofs using Blender. The problem I am actually facing is how to adjust the volumetric ...
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1answer
477 views

Volume section missing in material panel

I'm new to blender and trying to fiddle with materials. However, in the materials panel, the volume section is missing. I'm using Cycles. Is there something more to enable somewhere ?
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1answer
286 views

Rendering smoke and volume object which is emitting light causes black spots

I'm creating animation with shooting gun. I've created gun model, smoke emitter which is placed at the end of the barrel and muzzle flash - volume shader with emission. Everything looks fine until ...
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0answers
12 views

Weird render faillure material volume

I am just starting with blender and am actually in the middle of my first tutorial from Blender Guru. I just rendered a scene with a coffee cup with coffee in it, and suddenly dark tiles appear in ...
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0answers
24 views

(2.81 Evee) Volumetric spotlight shows through solid object

I'm trying to add "real" spotlights to my scene, as in stage lighting. Naturally I want spotlight-looking objects present. Problem is, when I place the light inside the object, it still shows through. ...
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0answers
39 views

Volumetrics - Different results GPU vs CPU

Hey fellow Blendy people, I'm running some benchmark comparisons between various render engines involving a lot of small, simple scenes. Anyway, on my test scene for volumetrics, I'm noticing a ...
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0answers
29 views

Why i cant see volume in Render but can in preview?

Why I cant see volume in renders, just the light. Preview looks ok, but render not. Not even in EEVEE or Cycles.
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1answer
38 views

Density texture in Voxel to mesh?

Hi , I am working on a scientific illustration. This is a porous structure of a membrane. How can I create the bottom part of the block? Can I convert the density voxel to mesh?
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0answers
29 views

Principled Volume outside containing Object [duplicate]

I am using the 2.8 RC2 I want to create a Material that is seethrough and colored as there will be an object inside that must be visible. It will be a red Light Emitting Diode with innards. ...
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0answers
33 views

How to add glare effect to a object in volumetrics?

Hey guys I need your help!! I want to add the glare effect (fog glow) while volumetrics is turned on in world tab but unfortunately I am not able to do so.
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0answers
86 views

Render 3D probability volume (3D texture) cycles / eevee

I'm looking to render photorealistic volumes from 3D textures (think MRI scans) together with geometry. So far, everything I've seen to do this is specific for BI, not for cycles or eevee. However, ...
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1answer
531 views

Volumetrics in EEVEE working in viewport but not in final render

Hey so I'm working on a scene with volumetrics enabled in the Eevee render setting (volumetric lightning is on as well). It shows up in the viewport and it looks fantastic, but as soon as I press F12 ...
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0answers
258 views

Eevee - Volume Scatter shader doesn't render but shows on preview

I also tried baking indirect light with a light probe and, the volumetric option in the render tab is activated but I still couldn't figure out how to make it appear also on render. Maybe it's not ...
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0answers
24 views

How to turn normal lights in a video to have more volume

So I saw this video on Aquaman-style Visual Effects, and I kind of understood how that worked. The problem was that the tutorial was made in After Effects, which I do not have access to, so I decided ...
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0answers
591 views

I can't render volumetric lights in Eevee with an orthographic camera

So this is the problem I'm having, when I render volumetric lights in Eevee, they don't show up with an orthographic Camera, but they do when using a perspective camera. Why is that? is there a way to ...
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1answer
575 views

EEVEE Volumetrics disappears when I plug in a noise texture to density node

Been trying to get this to work. Am I doing something wrong or is this a bug? The volumetrics disappears when I plug in any noise to the volume scatter node. I've also tried other textures. Thanks ...
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0answers
60 views

Black spots on Z-Buffer (Depth Pass)

To begin, I'm using a MacBook Air 13" early 2005 model. I cannot render high-quality images with ease. I can only render on the iMacs my school has allowed me to use. If samples/quality is a part of ...
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0answers
51 views

Volumetrics material not showing in final render (Cycles)

I have a scene with a sphere that has a Volume Scatter (Anisotropy 1; Density 0.1) material. When I preview it in the viewport (at 750 samples), it seems to be in the scene fine and how I like it. ...
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0answers
151 views

Multiple volume scatter objects - smoke and fog

Hello I have a problem in which my smoke simulation is inside the giant box which has volume scatter and absorption shaders. During rendering the smoke domain is visible as shady object around the ...
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0answers
192 views

Volume+Caustics?

Is there any way to make caustics work in a volumetric environment? When using the Cycles render engine, light passing through a Glass BSDF in a volumetric world will not show through on the other ...
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0answers
48 views

I want to make “god rays” in my nature scene [duplicate]

I am now busy with my first nature scene ever in cycles but I can't seem to get the hang of god rays for my scene, in a very simple scene with just a window I got it to work but it doesn't work out ...
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0answers
283 views

CPU render result differs from CUDA's one on smoke [closed]

The final result of a smoke render differs if using GPU (NVIDIA 1050 Ti) or using CPU (AMD 1300X). Any idea why? CPU render - Volume sampling 0.1 - Volume bounces: 0 CUDA render - Volume sampling 0....
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0answers
44 views

How to make volumetrics work

I've been reading a lot about this, but I can't find the solution. Anything I've tried so far hasn't helped at all to solve my problem. The scene is simple. There's a sun light outside which is ...
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0answers
72 views

Problem with Volumetric and Compositing in a Complex scene

I am new to the Blender community. Recently, I'm working on a school animation project which I created some animations and applied volumetric scatter in the scene to create depth. Unfortunately, due ...
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2answers
192 views

strange artifact when rendering volume

I'm using a volume scatter shader to render an atmosphere for a planet. To save on time I used a spherical gradient and ran it through a color ramp to get white only on the rims of the sphere. This ...
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0answers
245 views

OSL Volume in 2.79

I'm learning to work with OSL but it seems something has changed between Blender 2.79 and previous versions regarding OSL Volumes... ...