Questions tagged [volumetrics]

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

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43 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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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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285 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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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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782 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
805 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
77 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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169 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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213 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
64 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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317 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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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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140 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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265 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... ...
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0answers
77 views

Smoke domain rendering in Cycles [duplicate]

I saw a couple of questions here but they are not helping. This is what I did: Added a circle as emitter. Added a domain cube Changed the desired settings and this is the result in 3D viewport: you ...
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143 views

Adding a Texture to a Volumetric Drastically Increases Render Times?

so, I've been trying to render clouds using Cycle's Volume Scatter node in a way that doesn't murder render times. Plugging Volume Scatter into the Volume option of a Material Output, works fine, ...
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301 views

“Inside & Outside” volumes IE glass within glass (cycles)

How can we manage "glass" interfaces which have a different volume (absorption) on each side of the interface. For example colored liquid within a colored glass. I understand that to manage correct ...
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0answers
226 views

Does GPU volumetric rendering work with Mac Pro Radeon D700s?

Has anyone successfully rendered smoke (or any volumetric shaders for that matter) with GPU on a Mac Pro with Radeon Firepro D700s? I saw that smoke/fire is supported on Open CL (as listed here: ...
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1answer
1k views

How do you make an animated mist / smoke with lights that go through it and interact with it?

I want to do a small patch of mist or smoke, and have lights go through it and light it up, in an animation. I've seen the mist option directly in the interface, but as far I know it creates mist ...
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0answers
149 views

Why is my beer black?

I've been following this blender guru tutorial (Link to relevant section of tutorial) However, once I try to render the beer material it is coming out black I've followed very closely with the ...
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0answers
257 views

Volume material is not rendered onto environment map

I have an object with a volumetric material in the scene which renders a bunch of clouds correctly from my camera. I set up a cube to create an environment map by setting up the texture as environment ...
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0answers
41 views

Where is “volume sampling” options list in 2.76? [duplicate]

I am going crazy here, where is the option for the volume sampling in Cycles Render in the new Blender version? Normally you can choose either "Distance" or "Equiangular", I can't find it in the ...
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0answers
1k views

Voxel data as image sequence in cycles

I have image sequence of an object. How to render it in cycles as voxel or volume? Image sequence represents a slices of 3d object. Images are in .png. I would like to turn theese slices in 3d object ...
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1answer
2k views

How to make the light from the flashlight in Blender Cycles? [duplicate]

How to make the light from the flashlight in Blender Cycles? The Emission node doesn’t give volumetric light: I'll use it in animation, example: .
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2answers
139 views

Create a trail effect (Meteor)

I am trying to show a sphere with a trail, like the one shown in the image. I have tried using keyframes and moving the object from one point to another, and then enabling motion blur. This is not ...
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1answer
1k views

Help me understand why my cycles render is so slow

This is NOT about asking how to speed up cycles renders. I am just confused to why a scene has taken so long to render. Here we go: I have a camera (WOW) looking up into treetops. Pretty simple. ...
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1answer
49 views

Area Lit with Volume Lighting

My understanding is that if a light is brighter, it will light a larger area. (Like a point light.) If I try this with a volume light, it seems to only light an area proportional with its scale, not ...
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1answer
48 views

How to ease the edges of a volumetric texture?

I have a volumetric texture, and I don't know how I can ease the edges of this texture, to rub the "cube shape" of the volumetric texture. I also need this to be keyframed. I tried to use ...
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1answer
44 views

Rays emanating from a point on the surface

I am trying to create an effect in cycles (like the attached photo), where points on the surface emit rays (like god-rays). I have tried adding a spot light at the location where I want this, along ...
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1answer
56 views

Starlight spotlights w/ volume help

I'm trying to create something similar to this image's sky-box. I tried cutting holes into a plane and shining a spotlight through. My attempts end up with the light hitting the ground (which I don't ...
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1answer
643 views

How does fire and smoke simulation work?

I'd really like to get a basic idea of what happens under the hood of the fire/smoke simulation. It doesn't have to be detailed or specific to blender, just an overview of what actually happens. ...
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1answer
54 views

Not able to pull off simple combination of volume scatter and volume absorbtion: cycles

I was following ben u's tutorial on Basic Volume Shading. https://www.youtube.com/watch?v=9Ybk0qNFhqw I was doing OK with "Volume Scatter", but as soon as I put in the "Add Node" (3 min 46 seconds in ...
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2answers
357 views

How to create white volumetric clouds in a dark scene?

I am trying to create a scene which has a black background and the only ways to create volumetric clouds that i've seen results in ones which look believeable in light scenes but in dark ones they ...
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1answer
144 views

Create a light material which is seen as a focus in Cycles [duplicate]

How can I make a light material which is seen as a focus?
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1answer
39 views

Blurry volumetrics in viewport?

I am trying to make a procedural cloud. I followed a couple of tutorials, but every time I change to a volume shader, it gets blurry. This is the first time I'm messing around with this kind of stuff. ...
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1answer
34 views

Blender Evee volumentrics aren't working as they are supposed to

why does my cube look so bad while the other one looks so crisp and detailed
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1answer
45 views

Volumetrics behind glass arent working in Cycles

Im currently trying to render a scene in Blender 2.8 with Cycles out of the inside of a car. The side and windows are all basic BSDF Glass Shader. Outside of the car is a cube with a basic BSDF ...
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1answer
408 views

Creating a translucent acrylic-like Shader

I am trying to make this model and as you can see in the reference, it looks translucent with a glow on the outer ring, like a solid block of acrylic with thickness. Also, as you can see, it emits ...
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1answer
203 views

How to make a patchy cloud layer?

I want to make a cloud layer like shown in this image (where parts of it are empty patches). I tried doing this by applying a volume scatter shader to a cube and then controlling the density with a ...
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2answers
96 views

Apply volume to a spherical texture?

I have a quick texture applied on a UV Sphere. It is meant to be a spherical nebulae that I animate by keyframing the nodes settings (mostly color ramp, noise textures and color dodge mix shaders). ...
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1answer
35 views

3d reverse masking of volumetric

Is it possible to create a volumetric cube but mask only the space of that volumetric cube by a mesh? Hence if I put Suzanne inside the volumetric I only see her? The effect I am looking for is how at ...
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1answer
36 views

Eevee volumetrics different in render

When I was trying to make a cloud in Blender, I began to notice a strange issue. When the cloud is rendered using Eevee in the viewport, it looks fine. But when I render it, it looks much more ...
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1answer
128 views

Flames show in viewport but not in render

I've been trying to render out a simple fire/smoke sim. Everything looks fine in viewport but when rendered the flames do not show. I'm using cycles with optix in blender 2.83 steam release, on ...
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1answer
70 views

Why is my Eevee viewport render different from my full render?

I'm a little confused why my Eevee render looks different from the viewport preview. Above - Preview Above - Render Just a bit confused here. Any help appreciated.
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1answer
92 views

Large scale volume lights

I'm setting up a large scale space scene, and trying to get some volumetric lights - like god rays. However when scaling up the volume cube, to sizes like 10,000 units the god rays disapear. I can ...
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1answer
3k views

Volume Scattering in 2.8 Doesn't work?

Volume scatter not working in 2.8 build for the Mac? I tried plugging in the volume scatter node to the world output and checked the volumetric box. But nothing happens in Eevee! Please help.
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1answer
955 views

How to add fog in the compositor in blender 2.79

I want to add mist/fog in the compositor for my scene but i dont understand how to add it. I have looked up and nothing seems to tell me exactly how to do it because in my version of blender (2.79) ...
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1answer
166 views

Volumetric haze is showing through solid objects when 'stacked'

I have my whole scene contained in a big cube, and the cube's shader has both volume scatter and volume absorption (which are mixed with an add shader). So the whole scene has haze. Then, where ...
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1answer
1k views

Volumetric lighting is not showing in camera view

I currently have a camera inside a box that has a volume scatter node connected to the material outputs volume. I got my lighting set up (just a lamp) and gave it a view port render not in camera view....
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1answer
86 views

How are textures generated in 3D in compared to 2D

I'm curious on how Blender generates textures in 3D space for Volumetrics compared to 2D textures for a surface.

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