Standalone Viewers

OpenSubdiv builds a number of standalone viewers that demonstrate various aspects of the software.

Common Command Line Options

While the following command line options are common, not all examples support all -- in some cases, certain options are not applicable.

-f         : launches the application in full-screen mode (if supported)
-yup       : set initial view with Y-axis up (Z-up is the default)
-u         : apply uniform subdivision to all meshes
-a         : apply adaptive subdivision to create patches for the limit surface
-l depth   : level of uniform or adaptive refinement to apply
-c count   : number of repetitions of the animation loop when supported (default
             of 0 is infinite)
-anim      : interpret a given set of Obj files as an animated sequence rather
             than a set of distinct meshes
-catmark   : apply the Catmark scheme to all meshes in given Obj files (default)
-loop      : apply the Loop scheme to all meshes in given Obj files
-bilinear  : apply the Bilinear scheme to all meshes in given Obj files
objfile(s) : a set of one or more meshes in Obj format (requiring a .obj extension)
             that may be distinct meshes or animated versions of a single mesh

Common Keyboard Controls

Left mouse button drag   : orbit camera
Middle mouse button drag : pan camera
Right mouse button       : dolly camera
n, p                     : next/prev model
1, 2, 3, ..., 9, 0       : specify adaptive isolation or uniform refinement level
+, -                     : increase / decrease tessellation
Tab                      : toggle full-screen
Esc                      : turn on / off the HUD
w                        : switch display mode
q                        : quit