Questions tagged [volumetrics]

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

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19 views

why isn't volumetrics showing up in the viewport in cycles x? [closed]

volumetrics isn't showing up in the viewport. Can anyone try it their self to view any volumetric object in blender 3.0.0 alpha(cycles x)
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1answer
42 views

How do I fade a procedural clouds on the edges of a bounding box?

I have procedural clouds made following Default Cube's tutorial, the node group looks like this: The whole thing is bounded by a large cube, and I want to fade the clouds near the edges so that they ...
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1answer
43 views

Why does my volumetric jet material appear so low res?

I'm trying to make a jet material for my rocket ship but the volume appears low res no matter how much I scale up the voxels. I also played with the size of the object and that seemed to do nothing as ...
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1answer
34 views

Artifacts in cycles clouds and volumetric atmosphere

I am shading a planet, made up of three ico spheres, one for the planet itself, one for the clouds, and one for the atmosphere. However, the cloud layer is introducing this weird band/artifact on the ...
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1answer
38 views

eevee smoke/volume not being occluded

Been touching upon EEvEE every so often depending on what kind of image quality I'm looking for at the moment, and for the first time I am adding smoke. More specifically Glowing Smoke, as in "...
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0answers
14 views

How to stretch out animation time for a volume object

Blender volumes are great; particularly when I've got a scene (as I do right now) with a number of fluid effects going on. I can simply save them into a directory as a bunch of OpenVDB files and ...
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30 views

The effect of volume absorption is not visible

The effect of volume absorption is not visible
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0answers
21 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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8 views

Is there way to Import a VDB sequence other than the add volume (single file) operation?

I am currently running a quick script and manually changing the the file name (ie. copied the first import and copy pasted from the info window. I'd love to make a variable driven loop, but, my python ...
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1answer
27 views

Why my volume nodes not working in blender? [duplicate]

I tried experimenting with volume nodes in blender but none of then seem to work. Every node just produces a rough volume cube. This includes for every type of volume node like Principled Volume, ...
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27 views

How could I make a VDB volume not cast shadows?

I imported a VDB volume from Houdini into Blender 2.92 and it creates some weird shadows. How could I make it not cast any shadows? I went into Visibility > Ray Tracing but there's no Shadow ...
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1answer
37 views

Smooth Volume Rendering without Denoise in Cycles

I am trying to get my volume to render smoother without using denoising in Cycles. Testing various render settings for volume I can't seem to achieve the desired result. I figured the volumes step ...
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0answers
24 views

Rendered image saving as blank image

I rendered volume ok, but it saves as a blank image. I've tried save-as PNG and exr and also tried the output in compositor. When I render as a combined image the volume acts as expected, however ...
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0answers
32 views

Volumetrics look good in viewport but render weird

So I'm creating an underwater scene in Eevee using volumetrics for light rays. It has dark and deep colors with shadows and stuff in the viewport, but once I render it, it looks terrible. I'm pretty ...
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1answer
29 views

What 3D texture formats does OSL support?

So I'm playing with OSL right now, and have had a lot of luck in the past with texture and most of its key-value optional parameters. I've moved on to ...
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30 views

Get vdb motion blur in blender (from embergen)

I made a basic fire and smoke simulation in embergen and exported it as a vdb sequence (with the velocity data). When I put it into blender I get three velocity float values instead of one float ...
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1answer
57 views

Is it possible to add holes on volumetric clouds in eevee 2.92?

I'm trying to figure out if it's possible to add a hole/s in volumetric clouds whether it be in the mesh or some kind of texture trick, but I'm having no luck at all. I also need it to be able to be ...
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0answers
24 views

Eevee, lighting, Volumetric lighting crosses a mesh

I created two light spots with volumetric to get a beam of light with eevee in a real-scale scene. My light passes through my luster mesh despite having turned the shadow mode to none for the various ...
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1answer
58 views

Cloud with volumes renders blurry

I have been struggling with this problem for a while. I am trying to create clouds using volumes. I have figured out settings that works great and the outcome is like I want it to be except it renders ...
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0answers
18 views

“Extend” a UV map for use in volumetric materials?

I have a cube, and it's UV unwrapped, I can't get around that, and it has a transparent texture on multiple sides. I thought I could fake depth by plugging it into a volume, however, I quickly ...
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0answers
14 views

Volumetric lighting clipping / not displaying in cycles (not camera clipping related)

Im following a blender guru tutorial on clouds, but my displaced plane does not light properly once set as a volume (neither scatter nor principled volume works). You can see it working for him at 20:...
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2answers
107 views

Blender 2.8 One God Ray Effect

I am setting up lighting for a scene and I want one light to have a god ray effect, however, when I use the volume scatter on the scene it works for ALL lights. How do I isolate a spot light source ...
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0answers
8 views

Blender and volume object using openvdb

I have openvdb library connected with Blender. I am using Python API and my code is as follows: array = np.array(images) grid.copyFromArray(array) it creates grid ...
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0answers
13 views

Emitting particles based on volume shader

Is there a way to get a particle system to emit particles only from where the emitting mesh's volume shader has a high density value? Or, failing that, where the alpha channel of the mesh's surface ...
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1answer
28 views

EVEE Lighting and Volume Scatter showing through walls

I have a scene set up in EVEE with an object with a volume scatter material and a light on the outside. The light should only be coming through a window but there is volume being illuminated along the ...
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1answer
43 views

Volume shader looks solid from outside

When I plug the scatter volume node into an object's volume, it only works correctly if the camera (or the viewport) is inside the object. If the camera is outside of it, it appears a mist-coloured ...
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1answer
62 views

God rays in viewport but not in render

Trying to render a scene with a UFO with god rays coming out the bottom. Working in Blender 2.9 In my viewport it has light But in my render it doesn't To get the god rays, I added a hole at the ...
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0answers
32 views

Volumetric church window effect [duplicate]

I would like to use the attached texture as colored window glass. I found the following tutorial for this, but I can't follow it pretty early on ("Assign a material and add the following nodes&...
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0answers
28 views

How to make an object morph into a cloud? [closed]

I want to make an animation where a ghost slowly morphs into a volumetric cloud. What's the best looking way to do that?
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0answers
10 views

How can I make an Eevee explosion volume emit light and not receive it?

See the image below of an explosion I rendered with Eevee. It looks washed out because volumetric lighting in enabled and the spotlights are hitting it. I could disable volumetric lighting but I ...
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1answer
53 views

How to get the volumetric display not to show overlapping triangles

I was following a tutorial online and ran into an issue with my system. (Using EVEE for the render) I have a noise texture mapped into a emission shader then connected to the volume on the material ...
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0answers
27 views

Volume object create artifacts in Eevee render

Volume for some reason turns white on the render. And also this white artifact on the left, as if I forgot to hide some object, but there is nothing there. Volume Shader I don't have a background in ...
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2answers
610 views

Energy Sword Smoke Effect

I am trying to recreate Ekkos sword from League of Legends. I've got most of the modeling done but I am completely stumped on making a blade that looks good. I've tried smoke sims and volumetric ...
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2answers
53 views

light bleed through window

I'd like to get my light to bleed through the window and create a soft edge effect around the window frames. Here is an example image I found that shows my desired effects. The light seems to pour in ...
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0answers
16 views

I'm trying to use volume scatter node on an OBJECT material in EEVEE, but every time it gets applied on WORLD

In the first image I've deleted the principle BSDF and added the volume scatter node And on the second image even though I've applied volume scatter on the cube, it gets applied on whole world why ...
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1answer
307 views

Principled Volume not showing up in Cycles Render

My Blender scene looks like this: On the left, you can see my cloud-like volume setup. The center screen is in Material Preview mode and shows my clouds (the volumes) just right. As you can see in ...
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0answers
15 views

Problem to volume liquid export

I'm new to blender, but I'm watching a lot of tutorials. I was following this video (minute 25), but at the end, I had some problems. I was exporting my bottle of oil. If I export only the bottle this ...
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0answers
20 views

Feathering the edges of a Volumetric shape object

Hi Blendonians (just came up with that haha) I apologise in advance for having no screenshots, but I think I can explain the problem. I have a street scene. On the road, there's a sewage grate. I'd ...
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0answers
50 views

Principled Volume not showing in render

I have a principled volume node attached to a cube, to create a bit of "fog" for my small scene. It shows in the viewport, but is absent in the render. For my cube, I don't have anything ...
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0answers
52 views

Emission glow through glass materrial

How to create a emission material that will glow through glass material in Cycles render? (volumetric light) I have attached the project file here: https://drive.google.com/file/d/...
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0answers
25 views

I have 3d mesh data of a mouse brain in XML format. How can I import it into blender?

I have 3d mesh data of a mouse brain in XML format. How can I import it into blender ? File Link
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0answers
20 views

Volume material disappear when I move further [duplicate]

I was trying the volume material and when I move my view further, volume disappear. My camera will set further than this so this is a problem to me, I googled about this issue but I couldn't find ...
6
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1answer
480 views

Volumetric slicing in Blender

Is there a way to slice a 3D object into planes (see attached image), merge them and export it as a single .obj? I do not want to see the parts of the object that are left between planes, I just want ...
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0answers
48 views

Cycles volumes turn red and glitchy

I am trying to make some clouds for a scene. In EEVEE the clouds look just fine, but when I view them in Cycles, they have really weird red artifacting going on. You can see this in the upper left- ...
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1answer
18 views

Can I define a coordinate system based on a mesh, as generated coordinates are based on a bounding box?

I am making a procedural cloud based on CGMatter's which takes the shape of the mesh assigned the cloud material, with the added ability to 'shrink' the initial (pre-distortion) volume box so the ...
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1answer
44 views

Rendering problem on a procedural cloud

I created a procedural cloud with this tutorial : https://youtu.be/lCvP917Z8uc, but when I duplicate it to create a "Clouds carpet" the invisible cube from which I created my cloud causes my ...
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0answers
39 views

How to render volumetric light on a transparent image?

I have principled shader plugged into my world output and a spotlight in my scene, as well asthe film settings transpareny turned on and it keeps rending out the black background? I have provided a ...
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0answers
32 views

How do I scale volumetric clouds in Eevee so it looks like the camera is falling through the sky?

Camera is pointed up towards sky, and I cannot seem to get the clouds to scale down enough to make the camera look like it's falling. Here are shots of where the volumetric box starts and stops, in ...
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0answers
85 views

Eevee Volumetric Lighting Not Working

I don't know if this is a bug or a pilot error, but Eevee volumetric lighting seems to stop working after a while. In the attached test file, I started off by testing off by starting a test file with ...
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3answers
117 views

How To Make Volumetrics Round?

I'm currently working on a spaceship render. The engines glow and emit light. I have cubes behind each thruster that contain volumetric properties, I want these to look like a subtle back burner or ...

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