# Corona vs Vray: moving object animation and rendertime comparison

**URL:** <https://forums.chaos.com/t/corona-vs-vray-moving-object-animation-and-rendertime-comparison/128907>\
**Category:** Gallery\
**Created:** [September 12, 2014, 7:58am UTC](https://forums.chaos.com/t/corona-vs-vray-moving-object-animation-and-rendertime-comparison/128907 "2014-09-12T07:58:04Z")\
**Posts on this page:** 7\
**Page:** 2

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**Author:** ![spdb](https://avatars.discourse-cdn.com/v4/letter/s/9de0a6/32.png) [@spdb](https://forums.chaos.com/u/spdb)\
**Post date:** [September 18, 2014, 7:51am UTC](https://forums.chaos.com/t/corona-vs-vray-moving-object-animation-and-rendertime-comparison/128907/22 "2014-09-18T07:51:18Z")

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We tried some lower settings for HDCache, but frames took 3 to 4 min more to be calculated.  
And some low settings give us flickering in some dark spots…  
We are learning Corona, maybe we could be better next time…

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**Author:** ![Nekrobul](https://avatars.discourse-cdn.com/v4/letter/n/cab0a1/32.png) [@Nekrobul](https://forums.chaos.com/u/Nekrobul)\
**Post date:** [September 18, 2014, 10:27am UTC](https://forums.chaos.com/t/corona-vs-vray-moving-object-animation-and-rendertime-comparison/128907/23 "2014-09-18T10:27:25Z")

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It is better to use PT+PT for animation to maintain noise regularity.

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**Author:** ![spdb](https://avatars.discourse-cdn.com/v4/letter/s/9de0a6/32.png) [@spdb](https://forums.chaos.com/u/spdb)\
**Post date:** [September 18, 2014, 10:57am UTC](https://forums.chaos.com/t/corona-vs-vray-moving-object-animation-and-rendertime-comparison/128907/24 "2014-09-18T10:57:53Z")

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Yes we tried, but render time to avoid noise were way too high (about 35-40 min)…  
Still testing different setting found all over differents threads on the forum, but it’s quite hard to find an effective method…

For the moment, we are quite happy with our frame render time, but we keep searching great setting to reach fast render..

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**Author:** ![Nekrobul](https://avatars.discourse-cdn.com/v4/letter/n/cab0a1/32.png) [@Nekrobul](https://forums.chaos.com/u/Nekrobul)\
**Post date:** [September 18, 2014, 12:30pm UTC](https://forums.chaos.com/t/corona-vs-vray-moving-object-animation-and-rendertime-comparison/128907/26 "2014-09-18T12:30:50Z")

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> [@spdb](#):
>
> Yes we tried, but render time to avoid noise were way too high (about 35-40 min)…  
> Still testing different setting found all over differents threads on the forum, but it’s quite hard to find an effective method…
> 
> For the moment, we are quite happy with our frame render time, but we keep searching great setting to reach fast render..

Key to time might be hidden in the materials.

First things eating rendertime are opacity maps and CoronaAO

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**Author:** ![spdb](https://avatars.discourse-cdn.com/v4/letter/s/9de0a6/32.png) [@spdb](https://forums.chaos.com/u/spdb)\
**Post date:** [September 18, 2014, 1:19pm UTC](https://forums.chaos.com/t/corona-vs-vray-moving-object-animation-and-rendertime-comparison/128907/27 "2014-09-18T13:19:13Z")

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> [@Nekrobul](#):
>
> Key to time might be hidden in the materials.
> 
> First things eating rendertime are opacity maps and CoronaAO

Yes i agree… I’ve tweaked quite a lot materials in this scene, cause it was roughly converted from Vray…  
Unfortunaly, we have a limited full geometry trees and plants library, and our clients often have specific requests about vegetation.  
We have a blend material driven by AO for walls, I reduced its sampling to something like 8, don’t remember.  
Maybe I’ll do some tests without…

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<div class="post-metadata">

**Author:** ![Nekrobul](https://avatars.discourse-cdn.com/v4/letter/n/cab0a1/32.png) [@Nekrobul](https://forums.chaos.com/u/Nekrobul)\
**Post date:** [September 19, 2014, 9:38pm UTC](https://forums.chaos.com/t/corona-vs-vray-moving-object-animation-and-rendertime-comparison/128907/28 "2014-09-19T21:38:58Z")

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> [@spdb](#):
>
> > [@Nekrobul](#):
> >
> > Key to time might be hidden in the materials.
> > 
> > First things eating rendertime are opacity maps and CoronaAO
> 
> Yes i agree… I’ve tweaked quite a lot materials in this scene, cause it was roughly converted from Vray…  
> Unfortunaly, we have a limited full geometry trees and plants library, and our clients often have specific requests about vegetation.  
> We have a blend material driven by AO for walls, I reduced its sampling to something like 8, don’t remember.  
> Maybe I’ll do some tests without…

You can try to turn of texture filtering in devel\debug settings sometimes it helps a lot but its tricky and might bring out fire flys, but sometimes it decreases rendertime 2x 3x times.

Also you can chek albeedo white stucko material seem to be overlitt

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<div class="post-metadata">

**Author:** ![spdb](https://avatars.discourse-cdn.com/v4/letter/s/9de0a6/32.png) [@spdb](https://forums.chaos.com/u/spdb)\
**Post date:** [September 19, 2014, 9:55pm UTC](https://forums.chaos.com/t/corona-vs-vray-moving-object-animation-and-rendertime-comparison/128907/29 "2014-09-19T21:55:55Z")

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I’ve checked albedo render element, and no problem with that ( some slight pink area on the windows ( white 210 or 220), otherwise everything great).  
We’ve test filtering option on the dev panel, but it produce some fireflies on the moving guy…  
I’ve read this thead [opacity vs geometry (speed comparison) - Corona for 3ds Max :: Tutorials & Guides - Chaos Forum](https://forum.corona-renderer.com/index.php/topic,3649.0.html) about geometry vs opacity render time, and this one [Bitmap Filtering and Blur Examples - Corona for 3ds Max :: Tutorials & Guides - Chaos Forum](https://forum.corona-renderer.com/index.php/topic,4640.0.html) about filtering theory…  
Well, quite a lot to study!! Thx for your advices and comments, great to see such an active community!

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