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Blender

Questions tagged [volumetrics]

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

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4 views

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

this is my first question. Why i cant see volume in renders, just the light. Preview looks ok, but render not. Not even in EVEE or Cycles. Sorry for my bad english. And thx a lot for reply :) .
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9 views

Volume Scatter form

I have been trying out the Volume Scatter recently but I don't get why the material doesn't want to go in the the form the mesh has, can somebody help me please?
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13 views

Volume shader results different on cpu/gpu [duplicate]

I was trying to do some tutorials and experiments for Volume shader. In a final render as well as in viewport I am getting totally different results with GPU and CPU. What is strange, when GPU (gtx ...
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1answer
21 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
15 views

Lines appear volumetrics

I am using a Volume scatter node to get a foggy effect, but I get these lines showing up on the floor.
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1answer
18 views

Light not effecting volumetrics

So I'm rendering a scene out and I'm using the world volumetrics with "volume scatter". Blender Guru has a tutorial on it. When I put a "sun" light in the scene, it doesn't effect the scene at all. ...
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11 views

Eevee - constrain fog to a sphere? [duplicate]

Ok, Im following https://www.youtube.com/watch?v=Rr8ezx1czwQ and https://www.youtube.com/watch?v=mLPuG2aE0fE exactly, and instead of a box of volume scatter I want a sphere. Putting the volume scatter ...
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14 views

Fire bleeding in eevee

I was messing around with fire in realtime with eevee, but I was cornered by this strange comportment, with the original size of the model the fire seem to bleed through the geometry, but when a scale ...
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16 views

Get smoke color from flow object Vertex Color

I have an alembic cache of an animated object with animated vertex color and I'm using this as a flow object for a smoke simulation. All that is generating smoke well, but... Does anyone know how I ...
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45 views

Issue with Volume Absorption inside Glass

first time posting here and very new to blender, Im following BlenderGuru's latest tutorial and I'm having some issues with volume absorption, this is of course not a job, I don't have a deadline, so ...
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1answer
29 views

Volumetric Scatter affected (Same file, different computers) CPU vs GPU

I've worked on a scene on my 2015 MacBook Pro and it looks great, but takes too long to render. I bought an RTX 2080 for my PC and the volumetric scatter is barely visible. Why is my RTX 2080 ...
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10 views

Discrete Version of OBJ Mesh for physical simulation

I am using SOFA physics simulation to deform a yarn, first i have to get a discrete. version of the OBJ mesh. which is know in the format of VTK There is an example in SOFA tested on bunny.obj and it ...
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2answers
74 views

How to make irregular Honey Comb

I tried to make this pattern using metaball particles inside volume. But couldn't acheive this pattern. DO you know how can I generate a mesh with this porous structure ?
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1answer
118 views

Is there a way to Import a Houdini Generated Volume (VDB) into Blender Cycles?

Is there a way to Import a Houdini Generated Volume (VDB) into Blender Cycles? We are working on a Uni project, and we cant seem to get a VDB into blender working at all. Has anyone done this before ...
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1answer
71 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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28 views

how to make edge fade away with principled volume shader

how can i make edge on the atmosphere fade onto nothingness, right now it is to noticeable where it ends. I am using only principled volume shader and the density is at 0.0003. Changing density does ...
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33 views

Volumetric lighting doesn't work

I am using Blender 2.8 with Eevee and there is a light source behind a window, if I hide the window the light works but not with the window. I tried to change the material setting but without success....
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15 views

Volumetric lighting is glitching out?

Trying to do volumetric lighting in Eevee with an area lamp. I followed this tutorial but whenever I add the volumetric material to the cube I get this weird stuff: I'm wondering if maybe its because ...
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12 views

Eevee volumetrics disappear after adding in noise texture

I'm encountering the exact same issue as this poster: EEVEE Volumetrics disappears when I plug in a noise texture to density node That post is from December. Does anyone know if this is still a bug ...
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52 views

Realistic Car Headlights

I was trying to create some realistic lighting for a car render and I am having a bad time creating the volumetrics for the headlights. Some of the renders looked very noisy and in general really ...
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1answer
44 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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61 views

Why I don't see the volumetrics in eevee?

I have a very strange question:I don't see any squares near the volumetrics bar in Eevee in 2.8.What can I do to solve this problem?
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1answer
29 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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21 views

How can i render only the Volumetrics?

I have a scene with a lot of "fog", it does take a while to render the scene. I would like to render only the volumetrics to reduce noise in it. How can I render it without anything else, is it ...
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23 views

Joined Mesh not Bouncing Light

I have 2 mesh objects with the same texture applied. One is bouncing light of the plane behind it, the other (a joined mesh) is not. Not sure what's causing this but I'm sure it's a relatively easy ...
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19 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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1answer
154 views

Volumetric Caustics + HDRI Backdrop

Goal Using Blender 2.79b + LuxCore, I'm trying to set up a scene, which would support, at the same time, both A) volumetric caustics and B) Hemi lamp + HDRI backdrop. Problem When I assign a ...
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52 views

Blender 2.8 volume over transparent background not showing in rendered image [duplicate]

I made this planet with a volumetric shader for the atmosphere Left you see the atmosphere rendered in viewport mode Right you see it just rendered out but now the volumetrics are missing Any ...
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59 views

EEVEE _ deactivate lamp on rendering with volumetric fog, and keep only the illumination

I m working a scene on EEVEE, and I had placed some extra spot lights to illuminate my focus object. Also I have used volumetric fog. I need to keep the illumination of those spot lights but not the ...
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31 views

Physically realistic air volume

What are the correct "color", "density", and "anisotropy" settings for real-world air?
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33 views

Why does combining a surface and volume node result in a black material?

I'm trying to make a fluid with something dissolved into it. It's almost opaque but there are some spots of lower density solute. This is why I can't just use nodes on surface alone--I need to be able ...
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69 views

Camera Projection Displacement

I have been trying to recreate this c4d/Arnold tutorial in blender and I'm stuck trying to Displace the mesh only in one direction (In the video the displacement is applied to the z axis. min 06:31). ...
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1answer
1k views

Why doesn't Volumetric follow the shape of Mesh in Eevee?

So I was in the middle of making a ball-shaped smoke, but the volumetric effect didn't work following the basic shape. It remains cube in Eevee Blender 2.8; while in Cycle it works, but in Cycle it ...
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0answers
59 views

Are eevee volumetrics always going to be confined to square shapes? [duplicate]

Far as I can tell eevee will always render any shape with a volumetric material applied as a cube or rectangle, as opposed to say a sphere or something a bit more complex. Is this a hard limitation? ...
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297 views

Visualizing 3D voxel data in Blender 2.8

right now I'm trying to visualize my scientific 3D data in Blender 2.8. So blenders built in textures or smoke simulations do not lead to the goal. I've read that older releases of Blender do support ...
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0answers
32 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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28 views

Artfacs on Volumetric clouds cycles [duplicate]

I'm trying to make a cloud with some displace, the first with a Voronoi and the second with a cloud, finishing it with a simple volume scatter shader, but when I'm rendering the cloud get same ...
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1answer
41 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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0answers
85 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
443 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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1answer
91 views

Transparent object shaddows in volume material [Blender Internal]

Currently I am fighting with lighting artefacts within a smoke simulation, when the lightsource is within the volume and especially also within a transparent object within this volume. (Note this ...
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1answer
204 views

Volumetric fire looks cuboid

I do not know why. The tutorial I followed was https://www.youtube.com/watch?v=D_ybn4tYxs4. I am not able to get the result of a nicely shaped flame. Below is my set up for the domain:
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1answer
62 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
58 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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0answers
248 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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2answers
57 views

Fake flashlight volume with smoke: how to make noise texture coordinates not to follow camera

I'am trying to fake effect of volume light beaming through smokey fog using emission shader on torus with noise texture plugged into volume output. I get the effect, but when I move camera around ...
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1answer
126 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
1k 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
80 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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0answers
289 views

Principle Volume Density Node + Wave Texture not rendering in Eevee

I simply followed this tutorial at 54:26 https://www.youtube.com/watch?v=ptpGVGL-b2k I increased the cube size by 10, made the same lighting and world settings, and checked volumetrics. When I plug ...

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