Hi
Recently I was testing an script to crate ripples, so I create a simple scene to test it with caustics and encounter with 3 possible bugs, but I want to know if this is a “normal” or expected behaivior.
1 When rendering on IR, zooming the view on “top”, sometimes the render is displayed normally but when zooming in all dissapears except caustics, zooming out geometry appears, changed to ortho or perspective rendered ok.
2 While on IR moving the time slider to change animation frame, surface with caustic material doesnt seem to change, it mantains the frame when IR started, I need to stop and start it again.
3 When rendering animation I got another issue where frames wasnt completely saved, only the firsts ones, zooming in the VFB showed the image complete but zooming out it has alot of pixels missing, at frame 80/100 or so, I received a Corona error Message that contain a Nan.
Im attaching the files, video and some images.
*3ds Max 2026.3 (file saved as Max 2023)
*Corona 14 Update 1 RC
*Windows 11 25H2 Test.max (3.27 MB)
Ok I made another test with Phoenix and theres something goin on
1 Even without caustics on, the issue where the image is not displayed correcty its still happening on IR, so maybe this is not a caustic issue, its more an IR
2 Here the simulation is rendered ok when the time slider is changed during IR
3 After the NAs error I re render the error frames and everything works ok
Thanks for providing the scene but I was not able to reproduce the issue on my side. I used Corona 14 Update 1 and 3ds Max 2026. Can you perhaps start a ticket with us and we can investigate it further with you?
We were able to reproduce different issues from this report. They are now logged for our developers as:
(Report ID=CMAX-2099)
(Report ID=CMAX-2100)
(Report ID=CMAX-2101)
