Starrider
05-26-2008, 05:00 PM
hi!
i have a serious problem with my constraint objects on the subframes. maya updates the resulting rotation of my parent or orient constraint and somehow "cleans" it afterwards. which results in invisible rotation jumps from frame to frame. it's no problem as long as i'm not rendering with motion blur - but that's what i want to.
i think it's a matrix to euler rotation conversion problem.
btw.: it's not a thing which is possible to clean up by a script (bake and change values if they jump).
any ideas how to get rid of that?
cheers!
ps: i've attached a small testfile with that problem. if you'd like to use a little script source that:
polySphere -r 1 -sx 20 -sy 20 -ax 0 1 0 -cuv 2 -ch 1;
spaceLocator -p 0 0 0;
move -r 3.12531 3.219324 -2.319129;
select -cl;
select -r pSphere1 ;
select -tgl locator1 ;
parentConstraint -mo -weight 1;
expression -s "pSphere1.rotateX=frame*5;\r\npSphere1.rotateY=frame*2.5;\r\npSphere1.rotateZ=frame*7.5;";
select -r locator1 ;
bakeResults -simulation true -t "1:100" -sampleBy 1 -disableImplicitControl true -preserveOutsideKeys true -sparseAnimCurveBake false -at "tx" -at "ty" -at "tz" -at "rx" -at "ry" -at "rz" locator1;
and check the graph editor at frame 36. (the animation is baked to make it more obvious)
i have a serious problem with my constraint objects on the subframes. maya updates the resulting rotation of my parent or orient constraint and somehow "cleans" it afterwards. which results in invisible rotation jumps from frame to frame. it's no problem as long as i'm not rendering with motion blur - but that's what i want to.
i think it's a matrix to euler rotation conversion problem.
btw.: it's not a thing which is possible to clean up by a script (bake and change values if they jump).
any ideas how to get rid of that?
cheers!
ps: i've attached a small testfile with that problem. if you'd like to use a little script source that:
polySphere -r 1 -sx 20 -sy 20 -ax 0 1 0 -cuv 2 -ch 1;
spaceLocator -p 0 0 0;
move -r 3.12531 3.219324 -2.319129;
select -cl;
select -r pSphere1 ;
select -tgl locator1 ;
parentConstraint -mo -weight 1;
expression -s "pSphere1.rotateX=frame*5;\r\npSphere1.rotateY=frame*2.5;\r\npSphere1.rotateZ=frame*7.5;";
select -r locator1 ;
bakeResults -simulation true -t "1:100" -sampleBy 1 -disableImplicitControl true -preserveOutsideKeys true -sparseAnimCurveBake false -at "tx" -at "ty" -at "tz" -at "rx" -at "ry" -at "rz" locator1;
and check the graph editor at frame 36. (the animation is baked to make it more obvious)