asTexture3D¶

A node that performs 3D lookup of a volume texture, typically a Field3D file.

Parameters¶

Filename: The volume texture, typically a *.f3d [1] file.
Starting Channel: The starting channel for the volume texture lookup.
Color: The default color to use if the texture lookup fails.
Channel Fill: The default scalar value to use for any channels requested but not present in the volume texture.
Time: The time value to use if the texture specifies a time varying local transformation.

S Wrap

The wrapping mode along the s coordinate, it can be one of

Default

Black

Periodic

Clamp

Mirror

T Wrap

The wrapping mode along the t coordinate, it can be one of

Default

Black

Periodic

Clamp

Mirror

R Wrap

The wrapping mode along the r coordinate, it can be one of

Default

Black

Periodic

Clamp

Mirror

Blur Width: The amount of blur along the width of the volume, or the s direction.
Blur Height: The amount of blur along the height of the volume, or t direction.
Blur Depth: The amount of blur along the depth of the volume, or r direction.

Width Filter: Scale for the size of the filter defined by the partial derivatives along the s direction or implicitly from P, with a value of 0 disabling filtering altogether.
Height Filter: Scale for the size of the filter defined by the partial derivatives along the t direction or implicitly from P, with a value of 0 disabling filtering altogether.
Depth Filter: Scale for the size of the filter defined by the partial derivatives along the r direction or implicitly from P, with a value of 0 disabling filtering altogether.

Surface Point

The surface point being shaded.

Coordinate System

The coordinate system to use for the volume, it can be

Object Space

World Space

Camera Space

Footnotes

[1]	These files are exported as a result of simulations done in other applications. In the case of Maya, one could for instance convert Maya’s fluids to a Field3d file via the Field3D Maya Plugin. Other simulation applications also allow exporter volume data as *.f3d.