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.

236 questions
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Blender 2.8 volume not rendering [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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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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23 views

Physically realistic air volume

What are the correct "color", "density", and "anisotropy" settings for real-world air?
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28 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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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
91 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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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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63 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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27 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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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
36 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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79 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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190 views

Volumetrics in EEVEE working in viewport but not in final render

Hey so i'm working on a scence 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 ...
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1answer
52 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
190 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
51 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
51 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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224 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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48 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
76 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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466 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
42 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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131 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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1answer
1k views

Nice smoke in EEVEE

I made the smoke get rendering in Eevee, but I cannot make it looking pretty. I try to achieve a liquid nitrogen effect, but it's hard to make beautiful motion and nice colors. Even more, all the ...
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1answer
92 views

Subtle smoke under light ( eevee )

I know how to add volumetrically fog but I have no idea how to do this slow-moving smoke? that barely visible under light. above image is a sample only. thank you
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1answer
62 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
164 views

Volumetrics behind transparent objects in eevee

I have a scene where I want to put an object with a volume renderer under glass, but I've discovered that my volumes don't seem to render when they're behind a transparent object. I'm new to eevee, ...
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2answers
363 views

3d Volume from 2d Texture

is it somehow possible to generate volumetric information from a 2D Image Texture? I experimented already quite a bit, but with no succes. I thought about using the RGB, or better said, the BW-...
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403 views

Blender EEVEE not rendering smoke simulation

For some reason the EEVEE viewport is actually rendering the smoke simulation, however, on the actual render, it does not seem to render it at all as if it's excluding it. I have checked Volumetrics ...
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22 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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1answer
62 views

How to create haze around a uv sphere with emission shader [duplicate]

So, I have this lit up ball on a black background. The background needs to be black, and i would like a sort of haze around the ball. Other questions did not solve my problem. I was thinking ...
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225 views

EEVEE Volumetric Light exlusion

I need to exclude a point light from volumetrics lights. I tried placing a cube that surround only the spot light with a "Volume Scatter" node but it catch also volumetrics from the point light. It ...
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1answer
143 views

Replicate the light coming from a projector

Trying to create projection light to put on a scene like this 1 Click to enlarge. Example of the light I want to create. How would I do something like this?
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29 views

Why is the volume sampling options greyed out?

When I start a new project in Blender I have the option to change the Volume Sampling in the World Settings greyed out (the one that lets you change from Equiangular, Distance, Multiple Importance). ...
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441 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
381 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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2answers
42 views

Unable to flip the fog upside down

I am relatively new to Blender and am doing Andrew Prices' tutorial on Youtube for "Make a Grassy Meadow". I am at minute 44:25 where he flips the mist cube upside down. Unfortunately for me when I ...
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1answer
449 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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43 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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1answer
140 views

Smooth the jittering colors of smoke simulation

A recent project of mine involved smoke sims and materials. This is the result, and it's mostly what I was aiming for. However, its colors are jittery and seem to move around. Here is the material: ...
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1answer
71 views

Volumetric Light not working on Cycles (but good in preview)

The volumetric Light shows pretty well in viewport preview, but doesn't render at all in Cycles. 4 point lights - Strength: 1000 A cube with a Volume Scatter / Density: 0.2 / Anisotrop: 0 I've made ...
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1answer
2k views

How to make fog in Blender

I want to create a scene with some fog. I need the fog to get stronger the further form the camera it is. I already have volumetric lights in the scene, but thats not good enough. The result should ...
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1answer
124 views

Why does cycles' volumetrics leave stepping artifacts?

When I render out my rather sharp volumetrics, I get the kinds of artifacts shown in the images and links below. They are obviously produced by step size, and samples stepping through the volume, and ...
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34 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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70 views

Combining two objects with volume materials

I would like to create a volume material with two channels: red and green. For each channel I have corresponding voxel data. I tried to create two separate objects and overlay them, but standard ...
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1answer
293 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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31 views

Static and heterognous “Steam” in a room

I want to create a room filled with heterogenous steam (engine hall with """clouds""" ). I created a scattered volume for "world" and feed the FAC output of a noise/musgrave texture into the density ...
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1answer
42 views

How to make an item transparent but keep the shadow of it

I have a project where I need to see light rays. I have a light source which is a sphere : Over it I have an Icosphere where I removed some faces to let light pass through it : I wanted to enhance ...
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116 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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156 views

How can i make realistic lighting for a 3D car?

I'm making a 3D scene with a car, on Blender Cycles. (fisheye camera) Everything does seems fine for me but only the car lights doesnt work because i don't know how to apply them, i already tried to ...

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