ModelViewer2 not clearing RAM properly, causing crashes

[Wyvern]

Hey there, i just ran into a new issue,

The ModelViewer doesn't seem to clear RAM properly,
I never had any performance problems, so it looks like this might be a new issue.

Basically, I was showing a few liveries to a friend, and noticed something I wanted to look at on a few of my older liveries. I was clicking through a bunch of my flankers until it crashed, along with my discord.
I restarted, thought maybe it just threw an exception in the log and had a seizure, so i began clicking through the list again, when it crashed my spotify, discord, and itself.
I opened task manager to see my stats and noticed that MV puts all the textures into RAM, but doesnt clear them.
I tried to just not open many skins, i went to the livery i use as a WIP skin and went to GIMP, and suddenly it crashed itself AND GIMP.
After that i clicked through it again, and it looks like the MV DOES actually purge skins out of RAM, but not entirely.
I racked it up to ~11GB of textures in RAM by clicking through again, after ~2min it purged about 2gb, now about 15min later it purged another GB of textures.
It took about 1h for the RAM usage to go back to normal values
Reloading the model, aswell as reloading the textures doesnt help.
I would add a log, but as far as I know, the modelviewer doesnt actually produce a saved one like DCS does.

Is it possible to make it so MV purges ALL unused textures after 5min OR fully reloads the skin textures when hitting the "Reload Textures" button?
As right now its a problem, since it crashed OTHER apps, especially GIMP
 

[silverdevil]

On 10/31/2025 at 9:23 AM, Wyvern said:

Hey there, i just ran into a new issue,

The ModelViewer doesn't seem to clear RAM properly,
I never had any performance problems, so it looks like this might be a new issue.

Basically, I was showing a few liveries to a friend, and noticed something I wanted to look at on a few of my older liveries. I was clicking through a bunch of my flankers until it crashed, along with my discord.
I restarted, thought maybe it just threw an exception in the log and had a seizure, so i began clicking through the list again, when it crashed my spotify, discord, and itself.
I opened task manager to see my stats and noticed that MV puts all the textures into RAM, but doesnt clear them.
I tried to just not open many skins, i went to the livery i use as a WIP skin and went to GIMP, and suddenly it crashed itself AND GIMP.
After that i clicked through it again, and it looks like the MV DOES actually purge skins out of RAM, but not entirely.
I racked it up to ~11GB of textures in RAM by clicking through again, after ~2min it purged about 2gb, now about 15min later it purged another GB of textures.
It took about 1h for the RAM usage to go back to normal values
Reloading the model, aswell as reloading the textures doesnt help.
I would add a log, but as far as I know, the modelviewer doesnt actually produce a saved one like DCS does.

Is it possible to make it so MV purges ALL unused textures after 5min OR fully reloads the skin textures when hitting the "Reload Textures" button?
As right now its a problem, since it crashed OTHER apps, especially GIMP
 

hello. it does not really answer your question. though one can run MV outside of DCS. there is at least one report that it never op0ens this way. personally i am able to open MV outside of DCS. now to answer your question. i do not think it is possible to clear the MV memory usage except the three-finger-salute or just exiting DCS altogether. perhaps someone will have an idea for you.

[Wyvern]

17 hours ago, silverdevil said:

hello. it does not really answer your question. though one can run MV outside of DCS. there is at least one report that it never op0ens this way. personally i am able to open MV outside of DCS. now to answer your question. i do not think it is possible to clear the MV memory usage except the three-finger-salute or just exiting DCS altogether. perhaps someone will have an idea for you.

That has nothing to do with DCS
Modelviewer is a seperate application outside of DCS and I know very well to use, as I have been for the past few years.

I am simply reporting the issue, so that ED is aware that it occaisonally fails to clear unused textures from memory.

i was simply suggesting that ED could update MV to purge ALL unused textures after 5min or to simply do a full reload of all skin textures when hitting the "Reload Textures" button