When I render I can't undo!!???

[Velocamonkey]

This never used to happen before, I've probably hit a wrong key or something but anyway.

Say I'm box modelling and I move a vertex, I can then undo and all is fine.

BUT, say I move a vertex and then press F9 and decide I don't like how that render looks, when I close down the render window and try and click undo nothing happens, it seems the undo history gets erased when I press F9 to render!!

This isn't right and I don't know why this has suddenly happened. Help me please!!

Thanks.

[AJ]

Yeh - Max dumps anything in it's memory before a render so it can have all the memory... Not always ur undoes - but in a heavy scene (or randomly - Discreet's speciality... :p) it will ditch these too.

[Velocamonkey]

So in that case would more memory in my computer solve this problem?

[AJ]

I doubt it... I have 512MB in my machine, and it stilll dumps a lot of stuff so that it has more memory free for the renderer. It will simply use more when rendering.

Although... more memory is always a good thing ;) :D

[Velocamonkey]

Okay thanks for the help people, much appreciated.

The annoying thing is that it's only just started happening but, whatever.

SO anyone know where I can get the cheapest memory in the UK??

[dtek8]

i have a gig of ram in my machine and it always works vv cool it even worked fine with 512, there is a option to ajust the amount of undoos check it isnt alterd, ive never had this problem u speak of.

>customise>preferences>general tab(is were u find the setting)

there is a wierd little bug though it seems sometimes the shortcut cntrl+z doesnt work to undo inwhich case use the arrow icon on the main toolbar...wierd

i also live in the uk and there are loads of places to buy memory, it has actually just increased in price again b4 christmas u could pick up 512meg 133- for £40,,

check the internet,

dabs.com

http://www.microdirect.co.uk/

unfortunatly right now 512 will cost over £100

also your local computer fair. i found some mega cheap at one!

hope this helps

[subagio]

You don't have any scripts running rendertime callbacks by any chance do you? I know of a few that call gc(), which runs maxscript garbage collection and in so doing blanks out the undo buffer as well.

--C

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