| AbcExport -h; // AbcExport [options] Options: -h / -help Print this message. -prs / -preRollStartFrame double -duf / -dontSkipUnwrittenFrames -v / -verbose -j / -jobArg string REQUIRED -jobArg flags: -a / -attr string -df / -dataFormat string -atp / -attrPrefix string (default ABC_) -ef / -eulerFilter -f / -file string REQUIRED -fr / -frameRange double double -frs / -frameRelativeSample double -nn / -noNormals -pr / -preRoll -ro / -renderableOnly -rt / -root -s / -step double (default 1.0) -sl / -selection -sn / -stripNamespaces (optional int) -u / -userAttr string -uatp / -userAttrPrefix string -uv / -uvWrite -wcs / -writeColorSets -wfs / -writeFaceSets -wfg / -wholeFrameGeo -ws / -worldSpace -wv / -writeVisibility -wc / -writeCreases -mfc / -melPerFrameCallback string -mpc / -melPostJobCallback string -pfc / -pythonPerFrameCallback string -ppc / -pythonPostJobCallback string Complete description here | AbcImport -h; // AbcImport [options] File Options: -rpr/ reparent DagPath -ftr/ fitTimeRange -rcs / recreateAllColorSets -ct / connect string node1 node2 ... -crt/ createIfNotFound -rm / removeIfNoUpdate -sts/ setToStartFrame -m / mode string ("open"|"import"|"replace") -ft / filterObjects "regex1 regex2 ..." -eft / excludeFilterObjects "regex1 regex2 ..." -h / help Print this message -d / debug Turn on debug message printout Complete description here |
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Recently I found that there is no equivalent python command for alembic export import. I can't find the documentation on it either.
To read on the documentation, you have to call it in script editor using AbcExport -h and it only comes in mel. So after further research, I found a way to do it the python way. Basically, you have to wrap the mel version in a string and use it on the jobArg (j) flag. For the alembic export import maya.cmds as cmd start = 0 end = 120 root = "-root pSphere1 -root pCube1" save_name = "c:\documents\maya\project\default\cache\alembicTest.abc" command = "-frameRange " + start + " " + end +" -uvWrite -worldSpace " + root + " -file " + save_name cmd.AbcExport ( j = command ) If you do print command you'll get the following result -frameRange 0 120 -uvWrite -worldSpace -root pSphere1 -root pCube1 -file c:\documents\maya\project\default\cache\alembicTest.abc The alembic import command doesn't have the jobArg flag so I figured that I can import maya.mel to my python script and use the eval command. import maya.cmds as cmd import maya.mel as mel command = "AbcImport -mode import -fitTimeRange -connect " + '"' + root + '"' + " " + '"' + save_name + '"' mel.eval(command) Notice that you need to include the double quote encasing the root and save_name in the string. ' " ' If you do print command you'll get the following result AbcImport -mode import -fitTimeRange -connect "pSphere1 -root pCube1" "c:\documents\maya\project\default\cache\alembicTest.abc" Reference: About alembic export, click here About wrapping melscript inside python, click here I found this to be the easiest way to align object orientation along a curve. Using pointOnCurve command, you can query the position, tangent, and normal information. Using normal and tangent vector, find the bi normal / cross product and arrange all the numbers in a translation matrix with xform command. Normalized everything except position.
Query time slider value - use playbackOptions.
link to documentation here Importing pymel -> import pymel.core as pm Convert to pynode -> pm.PyNode("[name]") |
