I want to animate object visibility during animation. As visibility subanim will not be completely hidden in viewport, I decided to animate IsHidden property:
delete objects
clearlistener()
attDef = attributes IsHiddenTrack
(
parameters Main_Param rollout:Main_Rol
(
IsHidden ui:chk_IsHidden type:#boolean animatable:true default:false
)
rollout Main_Rol "Parameters"
(
checkbox 'chk_IsHidden' "IsHidden" checked:true
)
)
masterCtrl = point isselected:true
emptyMd = emptyModifier name:"IsHidden"
addmodifier masterCtrl emptyMd
custAttributes.add emptyMd attDef
custAtt = custAttributes.get emptyMd attDef
for i = 1 to 10 do for j = 2 to 10 do
(
obj = teapot pos:[i*50,j*50,0]
fl = obj.scale.controller = scale_list()
fl.available.controller = bezier_scale()
fl.setactive 2
fs = scale_script()
fs.addnode "thisNode" obj
fs.addtarget "isHidden" (getSubAnim custAtt 1)
fs.setexpression "thisNode.isHidden = isHidden \n[1,1,1]"
fl[1].controller = fs
)
Script controller is too heavy and will slow down everything. Any idea to improve performance?
as I said … we discussed it many times.
unfortunately there are no miracles … real animation of the visibility is only using the visibility track.
don’t waste your time. IsHidden cannot be animated. If you want to control the visibility of an object (including it during rendering), you should use its visibility control.
there are other suggested solutions: delete object’s geometry, scale node to ZERO, or move node out of camera. In some cases, this may work too.
I did that before by scaling xform, but the only way that framerate will increase is to hide the object.
What about replacing base object with empty object? Do we have an empty baseobject?
Like what? Editable Mesh or Mesher?
No, nor Delete Mesh won’t help
Some kind of Cache can, though.
What kind of animation, I mean what modifiers, how heavy in vertex count?
Also, what is the purpose of this “animated” hiding, can’t you turn it off or hide it “by hand”?
Skin modifier will release FPS after last key (in active layer) – just trowing some things here…
Denis, this seems work in Max 2019 and above:
attDef = attributes IsHiddenTrack
(
parameters Main_Param rollout:Main_Rol
(
IsHidden ui:chk_IsHidden type:#boolean animatable:true default:false
on IsHidden get val do
(
if isvalidnode (thisNode = (refs.dependentNodes (refs.dependents this)[1])[1]) do
(
thisNode.ishidden = IsHidden
)
val
)
)
rollout Main_Rol "Parameters"
(
checkbox 'chk_IsHidden' "IsHidden" checked:true
)
)
delete objects
clearlistener()
masterCtrl = Teapot isselected:true
emptyMd = emptyModifier name:"IsHidden"
addmodifier masterCtrl emptyMd
custAttributes.add emptyMd attDef
custAtt = custAttributes.get emptyMd attDef
do you think it may have problem with viewport driver or rendering?
In Max 2016+ you could do something like this. Not perfect but seems to work and since it is not a “hack” I see no drawbacks using it.
plugin SimpleMeshMod ShowHideGeometry
name:"Show/Hide Geometry"
classID:#(0x7ec0b278, 0x5c4cb199)
(
parameters main rollout:params
(
visible ui:chk_visible type:#boolean animatable:true default:true
)
rollout params "Parameters"
(
checkbox 'chk_visible' "Visible" checked:true
)
on ModifyMesh do
(
if visible then mesh else meshop.deleteFaces mesh #all
)
)this is correct. It’s renderable…
Slice modifier have a valid pos. controller to destroy mesh by itself.
And deleting mesh can bring back performance in some situations.
Splitting character meshes (in different nodes) is understandable way also
but don’t understand point here, how is viewport rendering and performance related to offline rendering…
who said it is related? i didn’t…
I only said that if you want to really animate the visibility, you must use the visibility track, delete geometry, or scale to zero. everything else doesn’t work for rendering. that’s all.