Author Topic: Corona Renderer 7 for 3ds Max - Daily Builds Discussion  (Read 175739 times)

2021-06-24, 09:43:53
Reply #495

dj_buckley

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Hi everyone,

We have been using some of the Corona 7 daily builds in some of our latest production archviz projects. We are very happy in general with all the nice new Corona 7 features, like the PhysicalMtl, etc. All dailies have been pretty stable for us during these last weeks.

I have just tried the new Atmospheric perspective effect in one of our current complex exterior scenes (urban situation). I find the effect to be really nice, fast to render and effective, thanks a lot for the hard work! However, I´ve experienced some weird behaviours, something like a strong Magenta tint, while tweaking the turbidity values. The most curious thing is that it is super visible through reftactions on glass surfaces. I´m a bit confused, not sure what is happening here. Please find attached some crop redners of one of the shots. I´m using a default CoronaSun and the new "improved" Sky model, with everything by default, except from:
-Altutude: 40m
-Volume effect: 1.5
-Turbidity: variable from 2 to 6 (read each file name to see value)

I'm seeing the same thing, anything above 3.5 turbidity seems to add a really strong magenta tint.  Also the altitude setting, when the tooltip refers to 'observer altitude' - not quite sure what this is referring to or how to implement it correctly for the correct effect

2021-06-24, 10:07:21
Reply #496

Flavius

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The crashes with Intel Denoiser are still a problem. Only now I had time to send the scene on your private uploader. On low resolution it works(720px or so), but on higher resolution(try 3000px) it crashes. It happens in multiple scenes. Thanks!

EDIT : Rowan Already answered this. Thanks again.
« Last Edit: 2021-06-24, 10:31:13 by Flavius »

2021-06-24, 10:21:08
Reply #497

dj_buckley

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Hi everyone,

We have been using some of the Corona 7 daily builds in some of our latest production archviz projects. We are very happy in general with all the nice new Corona 7 features, like the PhysicalMtl, etc. All dailies have been pretty stable for us during these last weeks.

I have just tried the new Atmospheric perspective effect in one of our current complex exterior scenes (urban situation). I find the effect to be really nice, fast to render and effective, thanks a lot for the hard work! However, I´ve experienced some weird behaviours, something like a strong Magenta tint, while tweaking the turbidity values. The most curious thing is that it is super visible through reftactions on glass surfaces. I´m a bit confused, not sure what is happening here. Please find attached some crop redners of one of the shots. I´m using a default CoronaSun and the new "improved" Sky model, with everything by default, except from:
-Altutude: 40m
-Volume effect: 1.5
-Turbidity: variable from 2 to 6 (read each file name to see value)

I'm seeing the same thing, anything above 3.5 turbidity seems to add a really strong magenta tint.  Also the altitude setting, when the tooltip refers to 'observer altitude' - not quite sure what this is referring to or how to implement it correctly for the correct effect

Just to add to this, I think it would be worth while for a dedicated helpdesk article on using the aerial perspective and what effect the settings can have, I'm seeing some quite heavy colour shifts just from changing the altitude value, currently feels like it's going to take quite a lot of trial and error fiddling with turbidity and altitidue to get the right effect.  Green and Magenta tints are really obvious in different parts of the image depending on what you change.  For example, 1.5m altitude has relatively neutral haze, but magenta in higher up shadow areas, change the altitude to 10m, the magenta is more subtle but the haze is now shifted heavily towards green/yellow, change to 25m and the colours swap over.  And it gets weirder if you throw turbidity changes into the mix too.  I don't currently have time to render examples etc, but will if I get a chance

2021-06-24, 10:37:28
Reply #498

JulioCayetano

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Hi everyone,

We have been using some of the Corona 7 daily builds in some of our latest production archviz projects. We are very happy in general with all the nice new Corona 7 features, like the PhysicalMtl, etc. All dailies have been pretty stable for us during these last weeks.

I have just tried the new Atmospheric perspective effect in one of our current complex exterior scenes (urban situation). I find the effect to be really nice, fast to render and effective, thanks a lot for the hard work! However, I´ve experienced some weird behaviours, something like a strong Magenta tint, while tweaking the turbidity values. The most curious thing is that it is super visible through reftactions on glass surfaces. I´m a bit confused, not sure what is happening here. Please find attached some crop redners of one of the shots. I´m using a default CoronaSun and the new "improved" Sky model, with everything by default, except from:
-Altutude: 40m
-Volume effect: 1.5
-Turbidity: variable from 2 to 6 (read each file name to see value)

I'm seeing the same thing, anything above 3.5 turbidity seems to add a really strong magenta tint.  Also the altitude setting, when the tooltip refers to 'observer altitude' - not quite sure what this is referring to or how to implement it correctly for the correct effect

Just to add to this, I think it would be worth while for a dedicated helpdesk article on using the aerial perspective and what effect the settings can have, I'm seeing some quite heavy colour shifts just from changing the altitude value, currently feels like it's going to take quite a lot of trial and error fiddling with turbidity and altitidue to get the right effect.  Green and Magenta tints are really obvious in different parts of the image depending on what you change.  For example, 1.5m altitude has relatively neutral haze, but magenta in higher up shadow areas, change the altitude to 10m, the magenta is more subtle but the haze is now shifted heavily towards green/yellow, change to 25m and the colours swap over.  And it gets weirder if you throw turbidity changes into the mix too.  I don't currently have time to render examples etc, but will if I get a chance

I just wanted to point out again, that the most weird thing that I found while playing a lot with all parameters is the heavy refraction tint seen on cars and facades window glass surfaces. If you check my Refraction Pass iamge, you will notice that most of the heavy Magenta Tint the beauty result has is coming from the refraction of those elements. This really doesn´t make sense in my head, atmospheric perspective effect should not be stronger inside cars and rooms than outside, right?

2021-06-24, 10:39:33
Reply #499

rowmanns

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Hi everyone,

We have been using some of the Corona 7 daily builds in some of our latest production archviz projects. We are very happy in general with all the nice new Corona 7 features, like the PhysicalMtl, etc. All dailies have been pretty stable for us during these last weeks.

I have just tried the new Atmospheric perspective effect in one of our current complex exterior scenes (urban situation). I find the effect to be really nice, fast to render and effective, thanks a lot for the hard work! However, I´ve experienced some weird behaviours, something like a strong Magenta tint, while tweaking the turbidity values. The most curious thing is that it is super visible through reftactions on glass surfaces. I´m a bit confused, not sure what is happening here. Please find attached some crop redners of one of the shots. I´m using a default CoronaSun and the new "improved" Sky model, with everything by default, except from:
-Altutude: 40m
-Volume effect: 1.5
-Turbidity: variable from 2 to 6 (read each file name to see value)
Hi,

Can you share this scene with us? Instructions on how to do so can be found in my signature.

Thanks,

Rowan
Please read this before reporting bugs: How to report issues to us!
Send me your scene!

2021-06-24, 10:43:12
Reply #500

romullus

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@team, i think there's a lot of issues and questions about the new aerial perspective, can we have dedicated topic on this subject please?
I'm not Corona Team member. Everything i say, is my personal opinion only.
My Models | My Videos | My Pictures

2021-06-24, 10:44:37
Reply #501

rowmanns

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Yeah,thanks, I'll try in this night.
But... do you have any plans to fix BTT tool for the final release?
Hi,

We are looking into this at the moment, I will give you an update when I know some more.

Thanks,

Rowan
Please read this before reporting bugs: How to report issues to us!
Send me your scene!

2021-06-24, 10:53:06
Reply #502

JulioCayetano

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Hi everyone,

We have been using some of the Corona 7 daily builds in some of our latest production archviz projects. We are very happy in general with all the nice new Corona 7 features, like the PhysicalMtl, etc. All dailies have been pretty stable for us during these last weeks.

I have just tried the new Atmospheric perspective effect in one of our current complex exterior scenes (urban situation). I find the effect to be really nice, fast to render and effective, thanks a lot for the hard work! However, I´ve experienced some weird behaviours, something like a strong Magenta tint, while tweaking the turbidity values. The most curious thing is that it is super visible through reftactions on glass surfaces. I´m a bit confused, not sure what is happening here. Please find attached some crop redners of one of the shots. I´m using a default CoronaSun and the new "improved" Sky model, with everything by default, except from:
-Altutude: 40m
-Volume effect: 1.5
-Turbidity: variable from 2 to 6 (read each file name to see value)
Hi,

Can you share this scene with us? Instructions on how to do so can be found in my signature.

Thanks,

Rowan

It is not possible, I´m very sorry, for NDA reasons. That´s why I posted a croped version of the original render. Nevertheless, I will try to use another scene, and replicate the issue, specially the refraction tint. and share the scene.
Thanks for your effort.

2021-06-24, 10:53:53
Reply #503

dj_buckley

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@team, i think there's a lot of issues and questions about the new aerial perspective, can we have dedicated topic on this subject please?

+1 - it's definitely very promising though, just needs some polishing I feel, low res image and a photo of my screen but here it is in action albeit quite subtley

2021-06-24, 10:54:58
Reply #504

rowmanns

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@team, i think there's a lot of issues and questions about the new aerial perspective, can we have dedicated topic on this subject please?
Yep, on it :)
Please read this before reporting bugs: How to report issues to us!
Send me your scene!

2021-06-24, 10:59:34
Reply #505

dj_buckley

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@team, i think there's a lot of issues and questions about the new aerial perspective, can we have dedicated topic on this subject please?

+1 - it's definitely very promising though, just needs some polishing I feel, low res image and a photo of my screen but here it is in action albeit quite subtley

Would it be possible to have it as a separate render element not burnt into the beauty pass?  like we can with bloom and glare? or a distance from camera type settings as it does seem to currently wash out the whole image right into the foreground

2021-06-24, 11:57:32
Reply #506

JulioCayetano

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Hi,

I easily replicated the Magenta Tint issue in a very simple wood scene, with a very simple building with glass openings.
As you can see, the interior of the building seems to be flooded with some kind of strange dense magenta fog. I will share the scene, but you can easily replicate it in 2min.
I used everything by default, except:
-Altitude: 40m
-Volume Effect: 1.5
-Turbidity: 2, 3, 4 & 6. see attachment.

Thanks

2021-06-24, 12:55:43
Reply #507

GeorgeK

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@team, i think there's a lot of issues and questions about the new aerial perspective, can we have dedicated topic on this subject please?

It is on! https://forum.corona-renderer.com/index.php?topic=33613.msg186845#msg186845
George Karampelas | chaos-corona.com
Chaos Corona QA Specialist | contact us

2021-06-25, 15:11:53
Reply #508

Duron

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Is there any fix in the pipeline about CR7 combined with ForestPack 7?

Working with FP7 in the latest builds/RC's is really hard. Not only that the scene/IR is reacting slow, i also get crashes very often. I didn't used FP until v7 came out - so i don't know if FP is generally struggling to work with CoronaRenderer. Just noticed some responisvenes issues with latest builds.

2021-06-25, 17:23:54
Reply #509

dj_buckley

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Doesn't look like the 2.5D Displacement issues have been entirely fixed.  Using RC3 - see attached

You can clearly see the artifacts in the render and the corresponding mesh in the viewport that has a denser mesh where the artifacts are occuring.

This is disappointing as there is currently no alternative and what I was dreading the most.

The displacement is only subtle and it's on a flat plane, so not even curved geometry this time.

This really really needs to be fixed before you release the final version without the old displacement.