Author Topic: light leak in corona 1.5.2  (Read 13621 times)

2016-12-10, 04:46:25

jacky

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I seen some light leaks and spot in my test scene,is everyone has this problem?
Like the image in attach.

2016-12-10, 12:15:59
Reply #1

romullus

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Most likely your walls doesn't have thickness. Add shell modifier to your walls object or encapsulate it with simple box object with hole for window and those light leaks should disappear: https://coronarenderer.freshdesk.com/support/solutions/articles/5000516209-i-can-see-noise-in-the-corners-of-my-scene-
I'm not Corona Team member. Everything i say, is my personal opinion only.
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2016-12-10, 13:45:57
Reply #2

jacky

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Tks.I had try again one more time,it's has not sloution.

2016-12-10, 13:53:53
Reply #3

jacky

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Most likely your walls doesn't have thickness. Add shell modifier to your walls object or encapsulate it with simple box object with hole for window and those light leaks should disappear: https://coronarenderer.freshdesk.com/support/solutions/articles/5000516209-i-can-see-noise-in-the-corners-of-my-scene-
Tks.I had try again one more time,it's has not solved.

2016-12-10, 14:54:06
Reply #4

romullus

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Was this scene created with Corona 1.5 version? Can you try to reset settings (either by temporary switching renderer to scanline and then back to Corona or by pressing dedicated button in render setup>scene>general settings) and see if that solves the problem.

https://coronarenderer.freshdesk.com/support/solutions/articles/12000020539-i-can-see-splotches-spots-light-leaks-in-my-image-

If that doesn't helps, could you attach problematic scene here, so somebody could take a look at it?
I'm not Corona Team member. Everything i say, is my personal opinion only.
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2016-12-10, 15:49:40
Reply #5

Ludvik Koutny

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This could be case of scene being created in Corona 1.5 which had UHD settings bug, and settings not being reset after application of 1.5.2 hotfix.

Alternatively, there is still some issue with how corona handles reflective caustics with UHDcache... but for some reason, it's has very low priority.

2016-12-10, 16:47:02
Reply #6

Dionysios.TS

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Yes, maybe is the bug mentioned before. Try to reset settings and see if it still happens.

BTW, two days ago I started a new scene with the latest 1.6 build and I found again the UHD cache value at 0.4... Should always be set to 1.0

2016-12-10, 17:12:57
Reply #7

jacky

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Was this scene created with Corona 1.5 version? Can you try to reset settings (either by temporary switching renderer to scanline and then back to Corona or by pressing dedicated button in render setup>scene>general settings) and see if that solves the problem.

https://coronarenderer.freshdesk.com/support/solutions/articles/12000020539-i-can-see-splotches-spots-light-leaks-in-my-image-

If that doesn't helps, could you attach problematic scene here, so somebody could take a look at it?
Thanks for your enthusiastic,the attach is the scene which is created by 3dmax 2014 and renderer is corona 1.5.2.
I had try to solve tihs proboem for several days.

2016-12-10, 17:58:54
Reply #8

Ludvik Koutny

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Yes, exactly as we suspected, you saved scene in a bugged corona version that had corrupted UHD cache settings. Resetting render settings makes the problem a lot less obvious. But it is still there, which reflects second sentence I wrote - Corona has some problems with the way UHDcache handles reflective caustics, resulting in splotches.

Attaching render of scene with render settings reset:
« Last Edit: 2016-12-10, 18:04:33 by Rawalanche »

2016-12-10, 18:03:03
Reply #9

Ludvik Koutny

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2016-12-11, 04:17:26
Reply #10

jacky

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I've reported the bug. Let's hope it will be handled soon: https://corona-renderer.com/bugs/view.php?id=2382
yes,as you said,i increased the precision to 20 of the UHD Cache,the result is improved evidently.
So,that's expect corona renderer will solve this issue soon.
Thank you so much.

2016-12-11, 04:23:19
Reply #11

jacky

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Yes, maybe is the bug mentioned before. Try to reset settings and see if it still happens.

BTW, two days ago I started a new scene with the latest 1.6 build and I found again the UHD cache value at 0.4... Should always be set to 1.0
Yes,it's may be a bug of UHD cache.Thank you for your attention.

2016-12-11, 12:40:49
Reply #12

Ludvik Koutny

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I've reported the bug. Let's hope it will be handled soon: https://corona-renderer.com/bugs/view.php?id=2382
yes,as you said,i increased the precision to 20 of the UHD Cache,the result is improved evidently.
So,that's expect corona renderer will solve this issue soon.
Thank you so much.

But did you reset your settings too? That's lot more important...

2016-12-11, 12:49:00
Reply #13

tallbox

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Yes, maybe is the bug mentioned before. Try to reset settings and see if it still happens.

BTW, two days ago I started a new scene with the latest 1.6 build and I found again the UHD cache value at 0.4... Should always be set to 1.0
Yes,it's may be a bug of UHD cache.Thank you for your attention.
Same here. The latest daily with UHD set to 0.4 by default.
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2016-12-11, 13:43:03
Reply #14

jacky

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I've reported the bug. Let's hope it will be handled soon: https://corona-renderer.com/bugs/view.php?id=2382
yes,as you said,i increased the precision to 20 of the UHD Cache,the result is improved evidently.
So,that's expect corona renderer will solve this issue soon.
Thank you so much.

But did you reset your settings too? That's lot more important...
Yes,of course.