Yes, I downgraded the Nvidia driver and that issue stopped happening… however, I’m still experiencing occasional crashes when clicking on certain scenes. It doesn’t crash all the time — only when transitioning from one scene to another. Although it’s less frequent now, it still happens sometimes. I managed to reduce this issue by lowering the poly count of the model, mainly by optimizing the use of plants. (It would be really helpful if each asset included a label showing the number of polygons, so we wouldn’t have to test each one to see which are too heavy.)
However, the most serious issue I’m facing right now is that every time I try to render video clips — even in a file that is fairly optimized and doesn’t lag much — the program freezes on the second or third clip every single time I queue multiple videos for rendering. I’m attaching an image showing how it gets stuck. (I don’t render all the videos in a single clip because when I do, character animations stop working.)
it just got stuck on the scene “10_1”. I attach this file with the task manager.
It doesn’t let me attach files, but it also generates temporary folders with the videos that were left halfway through. If I manage to open them, it’s clear that they’re corrupted — the video looks crashed or glitched, everything shakes. In some cases, I can’t even open the video at all.
I have separated your reply from the original Forum Thread as it may be unrelated to it and to avoid further confusion.
Can you send us your file? We would like to test it on our end to see if rendering video 10_1 will proceed. You may send it to support@d5techs.com and have it titled ‘Clov-Video Render Crash’
After optimization, the file itself functions normally without any lag, correct? The only issue is with rendering Clip 10_1, and all other clips are working as expected. Is that right?
I just sent the email with one of the files attached — the one that’s giving me the most trouble. Even though I optimized it and reduced the poly count by over 50%, it’s still very laggy, and it’s the file that causes the most issues when navigating between scenes. What usually happens is that when I switch scenes, the program crashes — the screen goes black and then the application closes.
This also happens frequently when I regenerate scatter elements. Every time I open the file, I have to regenerate the scatters because they don’t appear otherwise — this happens consistently with the file I just sent. Often, when I try to regenerate them, the program crashes immediately.
In both files — this one and the other — I’m also experiencing one of the most critical issues: when I queue multiple video clips for rendering, the program freezes after finishing the first one and stops rendering the rest. When this happens, the program still generates the video that was rendering at the time, but it comes out very choppy and seems to have compression or rendering issues — like something went wrong during export.
To summarize, the main issues I’m currently facing are:
The program crashes when I try to regenerate certain scatter elements.
It also crashes occasionally when switching between scenes.
And finally, and most importantly, it freezes during video render queues after the first clip, producing a corrupted or broken video file.
Just to check if there is something technically wrong with your file (e.g. bug, glitch, etc.), so opening it on a less powerful device would confirm it, if it renders and moves smoothly, then it might be caused by some underlying issue. But upon testing, it is behaving as expected, since it is a less powerful device with 8GB VRAM only, it is very laggy and video render is very slow.
Although I was able to check your scenes and the surrounding environment, I think disabling “Scene Transition” helped a lot.
No crashing on my end, but when rendering a video, it crashes.
Fairy smooth and is functioning normally despite being a large file with a lot of high-definition tree Assets. After updating the assets, VRAM has spiked to 15.2 GB, which is an indicator that the crashing is occurring due to the amount of vegetation assets.
There were only 7 Clips that had a Shot inside (I can’t seem to find Clip 10_1 and Clip 10 is empty), so I rendered the 7 clips to check if they are all normal.
While your project is visually impressive with its integration of architecture and the natural environment, I’ve noticed an opportunity for further optimization regarding the vegetation assets. Although you’ve indicated prior optimization efforts, it appears some tree assets may be excessive. Specifically, there are several tree models present in the project file that are not visible in any of the rendered scenes.
On top of that, these assets are HD and Dynamic Assets (Salix Babylonica), I recommend using low-poly assets in these areas since this particular zone exists for backdrop purposes only (correct me if I’m wrong).
If you are unable to delete some assets because it crashes before you can delete it, you may either:
Use the file version history to access it, since it may be lighter compared to the current file version
If you don’t prefer using the View History Version, then you can delete your f2 folder (pak files). Doing so will let you update your assets again, but please optimize or delete some assets before you proceed to update them.
Great, it sounds like the behavior on my PC is within expectations then. Since then, I’ve already done a big round of optimization and managed to reduce the poly count from around 8,000,000,000 to approximately 1,800,000,000 — mainly by removing several dynamic trees in distant areas or replacing them with low-poly alternatives.
I also discovered that one of the outer rings in the model, which I was using to block the horizon, had a scatter density of over 200,000 units/m² (I’m not exactly sure what the unit is). Considering the scatter tool caps the density slider at 5000, 200,000 was clearly excessive. Reducing it to 5000 alone cut down over 5 billion polygons from the model.
On top of that, I added 32GB of RAM to my PC, and performance has improved significantly. However, I’m still not sure whether the issues with the video render queue will persist — I’ll let you know once I test that.
On another note (as I already mentioned in a DM), I’m still having an issue with reflections. I’ve attached a screenshot showing it clearly — the reflection doesn’t appear in the preview, nor in the final render. Just to clarify, both preview and render distances are set to maximum.
We have provided the reason as to why it is happening and how you can solve it, Please note that modifying the limit mentioned in the link will surely increase your GPU/VRAM usage, considering that your file is full of HD and Dynamic Vegetation.
Thanks for the link! I had already checked that thread, and I understand how to get distant vegetation to show up in reflections. However, in my case, it’s not just the vegetation that’s missing — the water surface itself isn’t being reflected either. So I think the issue might go beyond the usual distant vegetation reflection setting.
I ran the test, and yes — enabling that setting does fix the reflection of the trees, though it comes with a noticeable drop in performance. It might still be useful for a specific shot. However, the water still doesn’t get reflected, so unfortunately it’s not a viable solution in my case. Thanks a lot for the suggestion anyway — for now, I think I’ll just have to leave that shot out.
