Author Topic: Chaos cosmos people (material) looks different depends on camera  (Read 1767 times)

2024-03-27, 08:34:43

mrsacan

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I think this could be related to vram somehow, but it only happens for a single camera.
Any ideas?

2024-03-27, 08:40:47
Reply #1

mrsacan

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If I change to perspective (P) and pan a little, it fixes

2024-03-29, 13:02:19
Reply #2

mrsacan

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This is not an urgent issue (I already completed the job) but I'm curious, any theory about this?

2024-03-29, 13:43:15
Reply #3

romullus

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I think you should report a bug and provide a scene where the bug is happening. This clearly does not look like expected behaviour. https://support.chaos.com/hc/en-us/requests/new
I'm not Corona Team member. Everything i say, is my personal opinion only.
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2024-03-29, 16:21:53
Reply #4

maru

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I am guessing (but just guessing) that your camera is somehow placed inside a volumetric material such as glass without "thin" option. To fix that, you can run a script which will globally disable volumetric effects in your materials (but not it may also "break" materials which are supposed to be using volumetrics so it's best to save a scene backup):
https://forum.corona-renderer.com/index.php?topic=41371.msg219089#msg219089

Here is a similar case:
https://forum.corona-renderer.com/index.php?topic=41610.0

We are working on detecting this and handling it automatically or through a notification as we understand it is not expected from user point of view.
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us

2024-03-29, 18:45:10
Reply #5

mrsacan

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So I read your replies and other thread, then started to delete objects one by one.
Found the guilty one, it's a chaos cosmos tree (I didn't noticed because it came as wire bounding box, as default), it still doesn't make sense to me though, because camera doesn't look like inside/intersect with the object.
Since I was able to recreate with just people & tree & camera & sun, I converted those to meshes, archived and sent you the file.

2024-03-29, 19:16:12
Reply #6

maru

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Does the tree have some volumetric effects enabled? (refraction, absorption, scattering)
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us

2024-04-01, 13:59:44
Reply #7

Avi

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Hi,

It seems like there some issue with distance value being empty in the Volumetric scattering section in the Corona physical material. Please see the video for a temporary fix for such issues.

We have logged this as a bug in our system to be reviewed by our devs. We will let you know as soon as we have any update on this issue.

(Report ID=CMAX-895)

Arpit Pandey | chaos-corona.com
3D Support Specialist - Corona | contact us