In addition to display 3D datasets one slice at a time, ds9 can also render data cubes in 3D.
download_chandra_obsid 13182 evt2
dmcopy "hrcf13182N002_evt2.fits[sky=circle(16404,16499,40)][bin chipx=7370:7857:1,chipy=7590:8080:1,time=::#100]" ar_lac.cube
Here we have filtered the HRC event file on sky coordinates, but then binned the image into a 3D cube in chip coordinates vs. time.
cd 3D
ds9 -3d ar_lac.cube -scale log &
import -window "SAOImage ds9" -resize 50% ds9_08_3d_01.png
display < ds9_08_3d_01.png
xpaset -p ds9 3d view 60 30
xpaset -p ds9 view vertical
import -window "SAOImage ds9" -resize 50% ds9_08_3d_02.png
display < ds9_08_3d_02.png
xpaset -p ds9 quit