an "empty/clean memory button" after render wish.

[priad]

When there is very huge scene with proxies, where you can't make 6 follow render without crash, and you must restart max and push the render button and don't sleep.
I think that's a max problem but it only happen with Vray .

[RErender]

To get some sleep you can queue them up in backburner as separate jobs, that way Max will use less memory to render and flush the memory every job.

[gilpo]

I use RErender's solution all the time but here's something that will help you as well.

Type: gc() in that little box in the lower left-hand corner of your Max workspace. It will force max to dump a lot of the stuff in its memory.

Note, however, that the command will also clear your undo history. When you issue the command the only thing that will happen is a number will come up in the box where you just typed. No prompt or anything else, but your memory usage will have gone down if it was possible to clear some of the stuff out.

[RErender]

That gave me an idea:

callbacks.removeScripts  #postRenderFrame id:#86it
callbacks.addScript #postRenderFrame "(gc())" id:#86it

If you create a script out of these two lines and run it it will add a callback to run gc() after each frame. If you make a script with just the first line it will remove the callback. I tried it on a quick test scene and it seems to work but it is as is and without warranty.

[studioDIM]

freescenebitmaps()
gc()

this sequence would make even more memory available in case you had many texturemaps called at rendertime.

gc light:true

won't flush the undo buffers

Re,

Lele

[priad]

Thanks for the tips but It would be better with a single button

[mike.edel]

easy as that:

macroScript cleanMemory 
category: "MAX Script Tools" 
buttonText: "CleanMem" 
toolTip: "Frees up the memory Max uses without erasing the undo history. Prints amount of free memory (on the heap) in bytes to the listener"
(
freeSceneBitmaps()
print (gc light:true)
)

save to a .mcr file
put it to your max/ui/macroscripts directory
restart max
customize ui
it will reside under the category "MAX Script Tools"
pull onto a toolbar of your choice

cu, mike
ps: feel free to modify the button name, category or tooltip as you like

[priad]

Hey thanks a lot mike!

[RErender]

well, you still don't sleep with that one, quess you don't have to be as awake though

[RErender]

Also, freeing scene bitmaps does not make much sense since they will just need to loaded again to render.

[mike.edel]

makes sense if you are currently working on a scene with tons of objects with displayed textures
seems max reserves memory for every single texture per object rather than once per texture
and the memory doesnt get freed up unless you use freeSceneBitmaps()

other than that you are right

[RErender]

right, but the point of the thread was to get Priad some sleep.

[jujubee]

Also, freeing scene bitmaps does not make much sense since they will just need to loaded again to render.

If you load in a bunch of HDRs into environment then keep swapping, you'll quickly want to free up those unused bitmaps... It came in very handy when making my HDR DVD.

[Da_elf]

cant you make a script with a render button that says..render scene using scenes render settings, on render end run script "cleanup.mcr

[RErender]

right, see above