id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
4850	Add GLTF export of atomic structure morphs	Tom Goddard	Tom Goddard	"The GLTF format supports morph animations which could be used to show a ribbon or atoms morph.  The implementation uses displacements of the original mesh positions and normals, so it can't handle different frames having different meshes as would be needed for a molecular surface morph.  But ribbons and atoms should keep the exact same number and order of vertices and triangles.

This might be of interest for the NIH 3D archive.

In addition to ribbon or atom vertex and normal displacements for each frame of an atomic model coordinate set the GLTF also include and ""animations"" key and key frame times relative to a global clock in seconds are given and for each time a set of N weights, one for each displacement set (called a ""target"").

Probably colors could also be morphed, for example, to highlight interesting residues.
"	enhancement	assigned	moderate		Input/Output							kristen.browne@nih.gov, phil.cruz@nih.gov, meghan.mccarthy@nih.gov	all	ChimeraX