animtated HDR rotation flickering

[peterguthrie]

just in case anyone here has had similar problems I thought I would ask here.

we would like to animate the rotation of a hdr sky, to make a sort of timelapse effect, but we get a lot of flickering which looks like the overall light intensity is changing.

when we remove the keyframes from the hdr sky then the flickering is gone.

any ideas?

I have tried PT + PT (still problematic) and the next thing i will try is switching to a corona sun

[maru]

How are you loading and animating the HDRI?

[peterguthrie]

initially vrayHDRi but then tried corona bitmap loader with offset animated.

now have painted out the sun from my HDR and used a corona sun instead, which fixes the problem (i think!)

[maru]

I just rendered out 2 320x240 animations with 10 passes, 100 frames, full 360 HDRI rotation with 2 different HDRIs and I do not see any flickering or exposure changes. Do you have any strongly reflective/refractive objects in the scene?

[peterguthrie]

i can send you a video on PM to show the problem. Happened with an override material on as well, all fixed with corona sun

[maru]

Sure, you can send it over forum pm or to our support at https://coronarenderer.freshdesk.com/support/tickets/new

[Imagine Studio]

Hello,

I'm trying to render interior animation with animated HDRI (pg skies - 1444), but a problem appears, same as Peter Guthrie described.

The HDRI is loaded as CoronaBitmap in the enviro slot. We have searched for a solution through the corona forum, but nothing helped us.

Thanks in advance,
Best Regards,
Dilyan

[rowmanns]

Hello,

I'm trying to render interior animation with animated HDRI (pg skies - 1444), but a problem appears, same as Peter Guthrie described.

The HDRI is loaded as CoronaBitmap in the enviro slot. We have searched for a solution through the corona forum, but nothing helped us.

Thanks in advance,
Best Regards,
Dilyan

Hi,

Would you be able to send over your scene archive please and we will investigate.

Thanks,

Rowan

[Imagine Studio]

Hi,

Scene archive send via PM.

update: latest test with corona sun seems to be rendring fine. Here the sun is animated instead of the HDRI.

thanks,

Dilyan

[rowmanns]

Hi,

Scene archive send via PM.

update: latest test with corona sun seems to be rendring fine. Here the sun is animated instead of the HDRI.

thanks,

Dilyan

Hi,

Thank you for sending the scene. We will investigate.

Rowan

(Internal ID=559254724)

[Imagine Studio]

thank you! sorry for the dummy question maybe, but what i should do with this number ?

Dilyan

[TomG]

Nothing - that's a number so we can find your ticket internally :)