I’m running some tests and one of which is a 30k render because I have those type of projects come along from time to time. With Corona (tested RC2 and RC3) I’m not able to directly render @ 30,000 pixels wide (it crashes out of memory).
I used the network/backburner/strip method to render the image out in strips. That kind of worked. It at least rendered the image. However, I’m getting one sequence that remains different (nearest to the shadow catcher ground plane):
I’ve tried it with path tracing and using a saved UHD cache (lower res save) but it always produces this anomaly at the bottom. The split at the upper portion of the car looks fine.
I’ve also tried the Rakete_BigRender script posted in another thread here about large render issues. It also produces a different look but within each tile though.
I had a similar issue when rendering tiles way back with Alpha already, but didn’t come across the problem again later. It was as if the renderer wouldn’t take into account GI from objects not visible to the camera/in frame which would be the case with strips. It rendered fine when the entire frame was rendered but not when tiled.
^ Same deal here. It renders fine at lower resolutions. Starts throwing memory warnings around 15k, but still renders ok. It will crash 3ds Max when I go this large in one shot though, so I was trying the scripts & strips options.
Might be helpful if there was that old bucket mode option, but I know that may generate its own world of issues. That, or some kind of corona splitter option built-in that would properly calculate the scene.
I’ll see if I can run it without a frame buffer. Had to do that with VRay on the same scene.
Hi Jeff, thanks for reporting this. We will definitely have to look into this. I am afraid we will need the exact scene you are rendering to reproduce the issue: Chaos
If you can share it, please do, and let us know what’s the file name.
Thanks for the tip on the low mem option. I’ll give that a whirl too. In the meanwhile, I’ve uploaded a stripped version of the scene (I verified that it still exhibits the issue). The file name: “Multi-Render_Corona-stripped.zip”
Regular upload. It didn’t fully complete the upload process last night apparently. I just uploaded it again and received the successful upload message this time. Should be there now (same file name).
Hello, I know this is a really old post but recently ran into the same problem and couldn’t find the solution easily. The problem with the slightly different tiles after the split scanline renders were done was being caused by the cache calculated on each tile, pre-calculating the cache and using the load-from-file option was the solution in my case. Hope this helps someone with similar issues!
By the way, this was an amazing render for 2018! It stands tall even today, excellent work as usual Jeff.
Thank you!