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Info

To reduce the amount of noise in a volume, you must ensure that the lights in your scene have enough 'volume samples'.

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Filename

The location of the VDB file. 

Info

Ensure that the IPR is not running when updating the file, otherwise, the bounding box will not display at the correct size in the viewport.

Anchor
Grids
Grids

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Grids

A list of OpenVDB grids to read and make available as channels in the volume shading context. Examples of Grid names are density, fuel, heat, temperature or velocity.

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Center

Keframe set for 'Frame' and hashtag used in 'Filename' when using VDB sequence

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Automatic Step Size

Sets the minimum voxel size defined in the VDB as the step size.

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Step Size

Multiexcerpt include
MultiExcerptNamestep_size
nopaneltrue
PageWithExcerptA5NodeRef:volume

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Multiexcerpt include
MultiExcerptNamebounds_slack
nopaneltrue
PageWithExcerptA5NodeRef:volume

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Compress

Multiexcerpt include
MultiExcerptNamecompress
nopaneltrue
PageWithExcerptA5NodeRef:volume

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Velocity Grids

Multiexcerpt include
MultiExcerptNamevelocity_grids
nopaneltrue
PageWithExcerptA5NodeRef:volume

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Velocity Scale

Multiexcerpt include
MultiExcerptNamevelocity_scale
nopaneltrue
PageWithExcerptA5NodeRef:volume

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Velocity FPS

Multiexcerpt include
MultiExcerptNamevelocity_fps
nopaneltrue
PageWithExcerptA5NodeRef:volume

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Motion Start

Multiexcerpt include
MultiExcerptNamemotion_start
nopaneltrue
PageWithExcerptA5Noderef:shapes

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Multiexcerpt include
MultiExcerptNamefield
nopaneltrue
PageWithExcerptA5Noderef:implicit

Tip
133955600
Reducing Noise

To reduce the amount of noise in a volume, you must ensure that any lights in your scene have sufficient volume samples, or alternatively that you have enough Camera (AA) samples.

Center

Gallery
includeLabelnoise
sortname



Warning
133955600
Volumes and Atmosphere Volume

Currently, atmosphere_volume does not compose well against volumes. This is because atmospheres return a single flat result that is opacity mapped on top of whatever is in the background of the pixel.

Center

Left: floor plane geometry hidden. Right: floor plane geometry visible. Fluid renders incorrectly.


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