Heavy scenes struggle is hard

[Jacinto Monteiro]

Been working with Corona for the past months and we ve managed two heavy scenes which was rly a pain in the *** because of corona crashing constantly.

Both scenes had huge amount of trees, grass, bushes an displacement. Not heavy meshs thought overall except tree ofc. Anyway both scenes eat between 17 and 30gb. We have 32 gb.
Anyway even at 17gb, while calculating "build acc struture" corona refused to continue. Totally stoped everything and only way to return was to turn off workstation and restart all over again. Sometimes without touching anything after crash, we re render same view same scene at it did it well! But this issue happened a lot and randomly.

Just wanted to know if people have had the same problem and if there is any solution.

Ps Attaching one of the heavy views we worked on so people can have an idea what the scene was all about.


Thkx,
Jacinto

[Ondra]

is there heavy displacement? Is the crash reproducible? It sounds like one displacement crash that was fixed recently

[rsi]

Hi Jacinto, if you run out of memory and the crash is not related to displacement, try devel/debug, you have the low memory option in Ray tracing core, embree this LOW MEMORY, the other solution is the old Proxy resolution in bitmap performance.
I think that the dynamical unloading and loading is already a requested feature, and as far as I understand, proxy won't help you that much.
We are running 64 GB on every Workstation or farm and 128 on new ones because of our addiction to this engine...
Keep the good worh with Souto!

[Jacinto Monteiro]

@Keymaster
There´s quite some displacement but i doubt its that what´s causing the crashs, because in both scenes, the problems started when i created multiply forest pro areas (grass, bushs, trees).

Yes the crash sometimes repeated itself after reboot several times, then we changed a couple of forest pro settings and it went throu the "build acc struture" well.

@rsi
Hey RSI nice to see you around Corona!
I shall try what you say!
Many thanks!

[rsi]

I can wait for the final release, I want to play with volumetrics and the new cache for animation...
Anyway it's cool to see people pushing Corona with big players in Architecture like you do, and how active is this Corona community.
Hope to meet you one day Jacinto!

[Black Sun]

Been working with Corona for the past months and we ve managed two heavy scenes which was rly a pain in the *** because of corona crashing constantly.

Both scenes had huge amount of trees, grass, bushes an displacement. Not heavy meshs thought overall except tree ofc. Anyway both scenes eat between 17 and 30gb. We have 32 gb.
Anyway even at 17gb, while calculating "build acc struture" corona refused to continue. Totally stoped everything and only way to return was to turn off workstation and restart all over again. Sometimes without touching anything after crash, we re render same view same scene at it did it well! But this issue happened a lot and randomly.

Just wanted to know if people have had the same problem and if there is any solution.

Ps Attaching one of the heavy views we worked on so people can have an idea what the scene was all about.


Thkx,
Jacinto

If I open Corona for the first time and render.... Corona always freezes and crashes computer. I have to cold start the PC from scratch.

What I found works for me is when I open Corona for the first time and load heavy scene, I render first at (very small size), wait for the green to clear and then render again at big sizes like 4k or 8k. Then Corona never crashes.