Questions tagged [volumetrics]
Questions about rendering with volumes (smoke, fog, etc.). Use this tag for both Blender Internal and Cycles.
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Compositor Volumetrics
So I've got an area light and I'm using volumetric scatter shader on a box covering the entire scene. When I do that I get the result shown below. I made the scatter density quite high to show the ...
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How to create a stipple or halftone effect on objects with volume shaders?
I'm trying to create a stipple or halftone effect in Blender on images composed by objects that use volume shaders like these (mostly principled volume shader and playing with emission and density).
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Mesh To Volume node rounding concave corners causes unwanted excess blocks
Maybe I'm looking for a workaround if it cannot be solved. Here's the original mesh I want to remesh with my Geo nodes setup. PS: I cannot use the Remesh modifier because it does not support complex ...
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How to fix depth passes vdb issue？
As long as there is a volume object or vdb in the scene, check the Z passes and render, the volume and vdb in the depth passes will have this damaged jagged noise speckled problem, how should I fix ...
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Motion blur rendering not capturing time-dependent shader changes
I'm encountering an issue with motion blur rendering in Blender where time-dependent shader changes are not being captured. Here are the details:
Setup:
I'm using Blender to render an image with ...
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Volumetric Cloud In Eevee not show up
I want to render some volumetric cloud but it not show up
I tried 2 methods in these videos but none working
UPDATE: I tried older version as in video, none of their were working
https://www.youtube....
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How to make mask for material with Volume in compositing?
How to make mask for material with Volume in compositing? I need to change color of clouds, but in scene doesn't produce desired result, so I tried to do it in compositing, but neither ID mask nor ...
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I'm creating cigarette smoke using Quick Smoke. Is there a way to make the smoke appear more wispy?
I'm trying to create cigarette smoke using Quick Smoke but it looks too much like a cloud of smoke. Is there a way to make it appear more wispy?
*image is a Cycles render using Blender version 4.02.
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I baked the data for my smoke simulation but the smoke isn't showing up in the viewpart or render. BUT I think the data baked correctly?
I baked the data for my smoke simulation but the smoke isn't showing up. However, the domain appears small and constrained around the dissolve object at the beginning (image 1). After I press play, ...
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Cant render volume shader in EEVEE at blender 4.2
I'm just simple: create a new file, add a block, set a volume scattering shader for the block, and connect the shader output to the volume.
Then in rendering mode, EEVEE cannot render and the blocks ...
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Blender 4.2 Eevee - Volumetrics show up differently between Viewport, Render and Command Line Render
Basically, I found that there is a major inconsistency in how Volumetrics in Eevee Next are rendered out depending on exactly how you render it out.
At this point I've ruled out running into VRAM ...
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How can I make particles have trails
I am making a jet animation and am trying to make a countermeasure effect, I have an emitter that emits glowing spheres (flares) and I want these flares to have a smoke trail, I tried doing a smoke ...
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VFX explosions and shadowcatchers [duplicate]
I'm attempting to render an explosion to be composited into live action. The explosion is made using Blender's smoke simulation with an emissive volume shader as described in tutorials like this one. ...
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Why can`t I see my object through refractive surface (Cycles)
I am probably missing something very simple. The hdri background can be seen through the water (a simple refractive material), but the object can`t. This is the same for world materials both with or ...
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Using volume data from OpenVDB format
I have a voxel volume of CT DICOM data in the Paraview application (screenshot 1), from which I exported in the OpenVDB format.
The CT data is 12 bit single channel grayscale information, I do not ...
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Final render volumetrics voxel glitches
Got stuck with a problem.
Viewport render volumetrics (cycles) look amazing even on low sample counts after 10 sec render.
Final render on the other hand has this ugly voxel square glitches with 10x ...
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Why the renderded edge of Volume looks dark? [duplicate]
I made a cylinder to hold a Gaussian beam. The intensity is calculated by the equation of the Gaussian beam. And the material is set like this (I make every choosable color to #FF0000):
The max value ...
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Direct volume pass as a mask instead of the volume's color
I'm using the volume direct pass for a smoke sim I have but that seems to give me the image of the smoke instead of a mask of where the smoke is and isn't so it becomes a problem when I'm trying to ...
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Rendering a Volumetric Image
So today I decided to try making a volumetric texture. (I found a mod for Kerbal Space Program that adds custom volumetrics, and I wanted to try making something.) If you're unaware, a volumetric ...
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How can I add "blur" the edges of my volume shader?
I'm trying to create this:
This is my result based on some changes I made to this tutorial:
I'm satisfied but I want a less defined border. I also added lens distortion and fog glare in the ...
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Making certain lights in scene not react to volumetrics (eevee)?
I have a scene with multiple lights and volumetric fog.
If i want one of my lights not to react to the volumetrics while still lighting my meshes, how can I go about achieving that in Eevee?
Thanks!
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Reflective water-like smoke shader
I want to make my smoke simulation look like water. How?
I have trouble understanding how to work with volume shaders. Can I somehow convert it to surface?
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How can I create a quantum fluctuation simulation?
I'm trying to replicate this real quantum fluctuations observation using Blender.
So far, I have used Principled Volume and Voronoi texture to create clouds. However, I can't get my head around how ...
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Horizontal lines appear in the cycle render when using principle volume for the material
If I delete the object with principal volume, the Cycle render will work fine.
I tried lowering the volume step rates render to 0.01 and increasing the max sample, but it did not work. How can I get ...
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Fire VDB is coming from everywhere!
It's quite obvious in the image, that the fire is supposed to be only in the middle of the render, but it's spreading out everywhere, the fire behind is not supposed to be there. I have no idea. It's ...
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Faded Bar on Frame-top in Camera View
I made a new scene. Utilizing a volumetric mesh, transparent node set up (with ambient occlusion nodes), and 3D scans. But in camera, you can see a faint bar going across the top. Mainly seen in the ...
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How can I achieve a similar indirect illumination like in the cassini image from saturn
On the left you can see my version in Blender, on the right is the original image taken by Cassini from Saturn against the backdrop of the sun.
On the original image the indirect illumination from the ...
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How to have object A attribute influence object B shader parameters
so TL;DR is: How to have obj A geo-node attribute influence obj B's shader parameters?
I have two objects A and B.
A is a curve circle and uses geo-nodes to store its radius as a named attribute.
This ...
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Volume emission and transparent background?
I have a problem with emission volume and transparent background
here is the file https://filebin.net/pm3hmhi3gvtdzxqs
I have a cube with emission volume and a transparent background but when I render ...
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Volume absorption density per color channel
I have a volume with a Volume Absorption node, and the density is based on the distance to the camera (the further away, the denser). But I would like to have a ...
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Principled volume does not work in eevee
I used a principled volume on a cube for testing and the cube just turns invisible. I’ve switched to cycles and it does show the volume. So I played with the volumetric settings and it shows a tiny ...
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How do I avoid banding in volumes that appear only on every other frame?
I am rendering out a sequence and have noticed that there is a circular banding happening within a volume, but only on every other frame. This happens both on render output and in rendered view within ...
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Create volume cube around object with equal padding from bounding box center?
I want to create a volume cube around an object with equal padding from the center of the bounding box of the object. Ideally, this would be a single value input (ie. "padding amount").
The ...
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Issues with volumetric fog being too thick
I tried my best to make a fog scene, but when I added volumetric fog it went just a single color. I can't see any objects, but when I zoom in I can barely see the objects.
Scene:
Shader:
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Volume type to gltf2.0 issue
I'm relatively new to Blender and currently, I'm working on creating medical imaging displays on a website using three.js. I've managed to import DICOM files using the MedBlend library (https://github....
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Update volume phase function
I have a Blender environment setup with a Mix Shader combining Volume Absorption and ...
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Blender 4.01. Coloured volumetric light through coloured glass
I want to achieve a result like this.
As said in the title I want to have my volumetrics coloured like the glass material which they pass through.
I've seen some old threads, but for some reason it ...
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Why Does Principle Volume Doesnt produce darker shades of color?
EVen Smoke Simulation keeps appearing darker shade but i gave the exact hex code of the sand . But tornado and smoke sim appears to be darker shade
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how do i set up a material so that im able to set up the falloff of an volumetric object from its surface?
how do i set up a material so that im able to set up the falloff of an volumetric object from its surface? i basically want the density at the center of the object to be normal while i can make the ...
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How can I reduce a 20h render?
I have followed a tutorial by Alaskan FX for a photorealistic Earth. This scene uses a 43k Clouds texture and 21k color map. My laptop is the Gigabyte g5 md with a RTX 3050 Ti 4gb and 16gb ram + ...
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World Shader Principled Volume Node Issues
I'm attempting to set up an underwater scene in Cycles by using the world shaders. My node setup isn't very complicated, it's just a principled volume node with the usual background node.The problem ...
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Is it better to have one large VDB or a bunch of small ones?
While making a cloudscape I was wondering which would be the better way to go about it.
Is better to have 1 large VDB with a bunch of dense spots for clouds but mostly empty space, or an individual ...
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How works Principled Volume?
I created a Geometry Nodes (GN) node tree that simulates the smoke trail from a missile.
The simulation of fire from the nozzle is done with emission, which is limited by a gradient. Its position is ...
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Volume absorption with boolean difference, when smooth shading the cutter?
I'm using a Boolean Difference modifier to cut a cube and a sphere out of a cube.
Then, I've assigned the same material to all objects, and I've removed Surface, and added Volume Absorption:
The ...
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How do I emit light from within an object using a point light (Chinese Lantern)
I scaled up an Icosphere and want to create the effect of a very big Chinese lantern, but irrespective of the material. I can't seem to get the light to emit from within the object. It just keeps ...
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Possible to have world node only affect one object? Problem with lightning Volume Absorption
Is it possible to have a world node that only affects an object with volume absorption?
I have a situation where I want to be able to control the lighting specifically for the liquid. I have tried ...
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Fog reveals alpha from png image
I am using a tree image (png) with fog. I noticed that the fog is highlighting the alpha from the png image. I am using the True Sky addon for the fog.
How can I remove the alpha highlighting?
I'm ...
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Is it possible to create a volume scatter Cycles material with "real" scattering?
I might not understand the Volume Scatter material properly...
A real "milky" glass (like diffuse volumetric plexiglas) would scatter light in any direction. If you put a printed paper with ...
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Numpy array to openvdb conversion returns a shuffled volume
I have a 3d numpy array containing results from a simulation which I want to render using Blender. When visualized using napari I get the expected result:
Using ...
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How I can apply noise texture shape animation on a geometry?
i'm a begginer with geometry nodes.
I created this simple noise texture animation with geometry nodes. I was trying to put in on a desired shape. I didn't found the solution. I was trying to create ...
