Refresh Problems

[Nicolas Langlois <nicolasl(at)buzzimage.com>]

Hello all,

I know many of you have already posted about this problem but a fellow 
animator fell on this this morning and I just though I'd send you repro 
steps this morning as it is too obvious we have refresh issues in 6.0.1.

# PYTHON CODE COMING UP
##############################

Application.GetPrim("Null", "", "", "")
Application.GetPrim("Null", "", "", "")
Application.Translate("", 3, 0, 0, "siRelative", "siLocal", "siObj", 
"siXYZ", "", "", "", "", "", "", "", "", "", 0, "")
Application.SetExpr("null1.kine.local.roty", "null1.kine.local.rotx * 
0.1", "")
Application.SetExpr("null1.kine.local.rotz", "null1.kine.local.rotx * 
0.1", "")
# WARNING : 3000 - **** Cycle breaking point 
null1.kine.global.ParentPoseCns_E
# WARNING : 3000 - Cycle through null1.kine.local.ori.euler.roty.Expression
# WARNING : 3000 - Cycle through null1.kine.global.ParentPoseCns_E
# WARNING : 3000 - PROBLEMATIC EVALUATION CYCLES ARE IN THE SPECIFIED GRAPH

# WHY IS THERE A DEPENDENCY CYCLE CREATED HERE???
# NOTHING IS WRONG WITH PUTING SOME EXPRESSION ON SOME PARAMETER
# THAT DRIVES AN OTHER ONE BY EXPRESSION

Application.CopyPaste("null.kine.local.rotx", "", 
"null1.kine.local.rotx", 1)
Application.SetValue("null.kine.local.rotx", 91.837, "")

# NOW INSPECT THE LOCAL TRANFORM PROP OF null1
# THE ROT Y AND Z AXIS ARE PROBABLY CORRECT AT 1/10TH THE VALUE OF X

Application.SetValue("null.kine.local.rotx", 0, "")

# NOW INSPECT THE LOCAL TRANFORM PROP OF null1
# THE ROT Y AND Z AXIS ARE INCORRECT AS IT REMAINED THE SAME AS BEFORE

# CHANGE FRAME AND THE VALUE GETS RE-EVALUATED CORRECTLY

##############################


We also have constraints not seeming to evaluate properly but as soon as 
the frame is changed, the refresh puts them back in place properly.

The Application.Refresh command doesn't seem to cut it. neither the 
Application.SceneRefresh.

Any reasons why it is behaving so differently than in 5.11. Why the 
expression now creates a dependency cycle in 6.0.1? and how to fix the 
refresh problems without changing frame?




Thanks for all the help...



--


Nicolas Langlois
Senior Rigger / TD
Buzz Image

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