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animBoost v0.8

What is it

animBoost is a set of maxscript that boost viewport performance for animated mesh.

What it does

Recently I found out that 3ds max still evaluates an object’s modifier stack even though the object is hidden. I always assume that’s not the case. For a non-animated object, this is not a problem, since 3ds max internally caches the final result of modifiers stack. But, if a hidden object is deforming over time, 3ds max wastes a lot of resources for this invisible object. For example, a typical character rig would have a low res proxy for faster playback. But, it becomes useless, since skinned hi-res mesh will be calculated anyway.

animBoost is an workaround for this problem. animBoost keeps monitoring scene and selectively turns on/off modifier when object is unhidden/hidden.

animBoost supports 3ds max 2009+

How to install

Download animBoost zip file. You will see two folders(Scripts/UI) after unzip the file. You need to copy those two folders into your 3ds max’s Scripts/UI folder.

Each 3ds max installation may have different folder location. To find your scripts and ui folder.
Copy and paste the following two line into your Maxscript Listener and press Numpad Enter. It will tell you where your script and ui folder is.

getdir #scripts
getdir #ui

*** installation for 3ds max 2013 ****

Since 3ds max 2013, 3ds max folder structure has been changed. Now “usermacros” folder is not in the “ui” folder anymore.

Threrfore, after you unzip the package, you need to go in “ui” folder and copy “usermacros” folder to user “usermacros” folder. To find your “usermacros” folder location. You can use the following maxscript command.

getdir #usermacros

How to use

Launch 3ds max. “Go to Customize User Interface”. Select “animBoost” category. You wil have 3 new actions. Make buttons or assign shourcut.

“turn on animBoost” will show up as “animBoost_On” button. “turn off animBoost” will show up as “animBoost_Off” button. “animBoost manual mode” will show up as “animBoost_Manual” button.readme

Now all you need to do is click “animBoost_On” button. Now animBoost is monitoring your scene and invisibly turns on/off modifiers when you hide/unhide objects.


If you have a lot of modifier heavy objects, THERE WILL BE DELAY when you hide/unhide objects.

If you have any problems with this script, you can always click “animBoost_Off”. Then animBoost will be removed from memory.

animBoost also support a “manual mode”. Instead of using “animBoost_On”, if you use “animBoost_Manual” button. You can run animBoost routine manually. If your system is really slow or you dont like the delay, you may use this.

v0.8 Update

bugfix – If you turn on/off with Layer, eveything is OK. But, when you hide/unhide each nodes, animBoost forgot to turn on Mesher/SuperMesher/XMesh. This has been fixed.

v0.7 Update

Support SuperMesher

Support Frost

Support Mesher

A few things to remember

– animBoost uses “Off in Viewport” to turn off modifier. Anytime when you hide/unhide an object, animBoost will reset “Off in Viewport” of ALL modifiers in the scene. If you want to turn off a modifier all the time, use “Off”. animBoost will skip any modifier that set to “Off”.

– animBoost will stay in memory until the current session ends(in other word, until you close 3ds max.). Evey time when you launch a new instance of 3ds max you need to run “animBoost_On” to use animBoost.

– After using animBoost, if you need to give the file to someone, make sure turn off animBoost before you save the file so all hidden modifiers can be turned in the file.

– If you use Thinking Particles, animBoost does not detect the source object that used for Thinking Particle Geom Instance. Therefore, if you hide the source object, animBoost will turn off the modifiers on the source objects.

any comment, bug report, English proof read to

animBoost is a replyware. If you use it, you are obligated to send/reply comment, bug report or English proof read. 🙂

Changsoo Eun(c) 2011.

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