Scalar Volume From File

The component reads every grid of the file. A grid of 32-bit or 64-bit floats gives a scalar volume with the voxel size, the position and the band of the grid, in the order the file holds the grids, and Names gives the name of each grid. A grid of any other type, such as a velocity grid of vectors, gives no volume, and neither does a grid with a frustum transform, which widens away from a camera. A remark names each grid that gives no volume.

Set Watch to true to read the file again each time it changes on disk, for example while a simulation writes it. The component reads once the file has stayed unchanged for a second, so a save in several writes gives one read. A simulation that writes numbered frames writes a new file for each frame, and the component reads none of the later frames.

• Set Scale to 1000 to read a file in metres into a model drawn in millimetres.
• Morphé treats every scalar volume as a level set, including the density grid of a fog volume. Distance operations such as Offset give no meaningful result on such a volume.
• Pick one volume with List Item, or find the position of a grid name with Member Index on the Names output.

What the component may report, shown as a balloon on the canvas.