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

5 votes

Control density of a volume in a more methodical way

Until you add more details (mentioned in my comment) ... One way to dissolve solid into a "gas" can be faked simply by Plane used at the same time as factor for Boolean modifier and Canvas of Dynamic …
vklidu's user avatar
  • 37.2k
4 votes

Starlight spotlights w/ volume help

There is several ways to get this effect ... but in your example are mixed two light effects. One is vertical lights from stars and second light scattering fromcentral light source. So here are some t …
vklidu's user avatar
  • 37.2k
2 votes

Why I can't see Godrays and How to Improve my overall scene

The scene seems to me too bright to generate such effect (also in reality). Godrays are result of light ray hitting particles (dust, humidity) in a dark envi make the light visible, that is hard in su …
vklidu's user avatar
  • 37.2k
2 votes
Accepted

Why I can't see Godrays and How to Improve my overall scene

Compositor – Sun Beams Similar effect can be faked by compositor. Here I used alpha (when rendered without background)... ... as the source for Sun Beams node A bit difficult for complex scene wit …
vklidu's user avatar
  • 37.2k
2 votes
Accepted

Principled Volume Shader shows edges of its Domain/Object

I'm not answering your Q, but you could be interested to try another approach with Object type Volume. Model a base shape (from cubes or in Sculpt mode from sphere) here Cubes with Subdivision modifie …
vklidu's user avatar
  • 37.2k
4 votes

How to make cumulonimbus clouds?

VDB to Mesh + Sculpt ... Import some existing VDB cloud ... You can't convert Volume object into a mesh directly, but I just noticed - you can add some mesh object (like a Plane) and use Volume objec …
vklidu's user avatar
  • 37.2k
1 vote

Rendering a Volumetric Image

Non Blender This task would be faster to solve out of Blender ... some online generator or by ffmpeg (if installed) via Terminal with the command below (here is step-by-step tutorial) ... it works f …
vklidu's user avatar
  • 37.2k
2 votes

How to generate spherical gradient volume

Volumetric Emmision add Emmision shader plugged into volume socket of material Output add Transparent add Mix shader - with Emmision up add Gradient texture > Spherical as factor Volumetric Absor …
vklidu's user avatar
  • 37.2k
1 vote

3d reverse masking of volumetric

Volumetric Cube catching Torus Light Is this what you are looking for? Cube with Principled Volume Shader (Density 0.1 / Anisotropy 0.95) Torus with Emission Shader (Properties editor > Object > Visi …
vklidu's user avatar
  • 37.2k
1 vote
Accepted

eevee smoke/volume not being occluded

Here is example with solved issue ... ... but the only one solution I found ... crop the area under Render Properties > Volumetrics > Start/ End and increase Samples up to 256 ... also don't use Distribution …
vklidu's user avatar
  • 37.2k
2 votes

Why does my volumetric jet material appear so low res?

For Cycles it was enough to change Mesh to Volume modifier Resolution > Voxel Size to 0.1 For Eevee it is the same, but ... ... you have to change also Render Properties > Volumetrics > End to 1000 m …
vklidu's user avatar
  • 37.2k
4 votes
Accepted

Is there any way to convert generated volumetric shader into the mesh?

Because your description is aiming to texture and not shader as stated in title ... Procedural Texture to Mesh Since Roel's is not reacting to the comment ... a few notes from me. His workflow is fine …
vklidu's user avatar
  • 37.2k
2 votes
Accepted

Eevee spot light volumetric lighting not starting or stopping at right location

Is it necessary to operate at such a huge dimension? Almost 0.5 km ... It always brings a lot of visual artefacts. Here whole scene scaled down to 0.1 (for simplicity parented all to Empty and scaled) …
vklidu's user avatar
  • 37.2k
5 votes

How can I create a quantum fluctuation simulation?

Notes: Animate Musgrave (Voronoi or what ever) Texture > 4D - W parametr Render Properties > Volumes > Step Rate Viewport/Render 0.2
vklidu's user avatar
  • 37.2k
1 vote
Accepted

How to include smoke/fog/volume into mist pass

OK so there is something you can do as workaround, but it requires some steps over (and probably impossible for complex scenes or shaders). This scene is just Cube emitting smoke in box ... The only …
vklidu's user avatar
  • 37.2k

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