Chaos Corona Forum

General Category => General CG Discussion => Topic started by: labotory on 2018-11-29, 13:19:03

Title: Need help from someone using Megascan texture on 3Ds Max
Post by: labotory on 2018-11-29, 13:19:03
Hello

I have some problems during export from Bridge to 3Ds Max or from Mixer.

When i use texture on 3Ds Max the result is not same as Mixer. Displacement dosent work, same for Gloss, spécular...ect

Someone use these softs ?
Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: Jpjapers on 2018-11-29, 13:23:18
Can you post some more info. A material graph would be useful as would a screenshot from mixer and a render from corona to compare
Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: labotory on 2018-11-29, 13:51:30
Can you post some more info. A material graph would be useful as would a screenshot from mixer and a render from corona to compare

This is it !

Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: Jpjapers on 2018-11-29, 13:59:39
Could this just be your scene lighting?
Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: labotory on 2018-11-29, 14:06:14
Could this just be your scene lighting?

I know that I usually have problems lighting up my scene.

I use HDRI + Corona Sun

See my HDRI and Sun parameter
Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: PROH on 2018-11-29, 17:37:01
Hi. I think you're giving yourself unnecessary troubles. Here's some things that'll make life easier:

1) Don't use the exposure control in Max's environment panel. Use only Coronas exposure (panel or camera).

2) Don't mix sun and HDRI. It's not "wrong", but it does require more knowledge and skills, and is harder to make "physically correct". Use a HDRI only or a sun + corona sky.

3) Your HDRI seems to be set up wrong in the bitmap loader. I guess that "use real world scale" is activated in your preferences, giving some headache in max - your bitmap is to 1cm X 1cm in "size", instead of 1 x 1 "tile". To change this, you need to first select "map" mode, uncheck "real world", and the set it back to "environment" and "spherical".

Hope it helps
Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: labotory on 2018-11-29, 19:38:56
Hi. I think you're giving yourself unnecessary troubles. Here's some things that'll make life easier:

1) Don't use the exposure control in Max's environment panel. Use only Coronas exposure (panel or camera).

2) Don't mix sun and HDRI. It's not "wrong", but it does require more knowledge and skills, and is harder to make "physically correct". Use a HDRI only or a sun + corona sky.

3) Your HDRI seems to be set up wrong in the bitmap loader. I guess that "use real world scale" is activated in your preferences, giving some headache in max - your bitmap is to 1cm X 1cm in "size", instead of 1 x 1 "tile". To change this, you need to first select "map" mode, uncheck "real world", and the set it back to "environment" and "spherical".

Hope it helps

Thank you for your help PROH !!
Can you explain how use only HDRI only? Im trying but the result is really dark (and blue) even if i use a clear HDRI
Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: Jpjapers on 2018-11-29, 21:16:51
Hi. I think you're giving yourself unnecessary troubles. Here's some things that'll make life easier:

1) Don't use the exposure control in Max's environment panel. Use only Coronas exposure (panel or camera).

2) Don't mix sun and HDRI. It's not "wrong", but it does require more knowledge and skills, and is harder to make "physically correct". Use a HDRI only or a sun + corona sky.

3) Your HDRI seems to be set up wrong in the bitmap loader. I guess that "use real world scale" is activated in your preferences, giving some headache in max - your bitmap is to 1cm X 1cm in "size", instead of 1 x 1 "tile". To change this, you need to first select "map" mode, uncheck "real world", and the set it back to "environment" and "spherical".

Hope it helps

Thank you for your help PROH !!
Can you explain how use only HDRI only? Im trying but the result is really dark (and blue) even if i use a clear HDRI

You have physical exposure control installed in the environment panel and likely have your physical camera set to -6.0Ev in the physical camera properties.
Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: PROH on 2018-11-29, 21:17:48
Hi. Sounds like you're using a bad HDRI, or loaded it with a wrong gamma (use Automatic or manually override with gamma 1).

Try this site: https://hdrihaven.com

It's a free site with lots of high quality HDRIs. I've used some of them, and I only found one or two to be troublesome. I especially like the ones from Amsterdam, Berlin and Italy.

Hope it helps
Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: Jpjapers on 2018-11-29, 21:22:53
Hi. Sounds like you're using a bad HDRI, or loaded it with a wrong gamma (use Automatic or manually override with gamma 1).

Try this site: https://hdrihaven.com

It's a free site with lots of high quality HDRIs. I've used some of them, and I only found one or two to be troublesome. I especially like the ones from Amsterdam, Berlin and Italy.

Hope it helps

Ive found the most recent VizPark HDRI set to be atrocious for a commercial product.
Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: labotory on 2018-11-29, 21:56:41
Hi. Sounds like you're using a bad HDRI, or loaded it with a wrong gamma (use Automatic or manually override with gamma 1).

Try this site: https://hdrihaven.com

It's a free site with lots of high quality HDRIs. I've used some of them, and I only found one or two to be troublesome. I especially like the ones from Amsterdam, Berlin and Italy.

Hope it helps

Thank you. I will test
Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: labotory on 2018-11-29, 22:09:53
Hi. Sounds like you're using a bad HDRI, or loaded it with a wrong gamma (use Automatic or manually override with gamma 1).

Try this site: https://hdrihaven.com

It's a free site with lots of high quality HDRIs. I've used some of them, and I only found one or two to be troublesome. I especially like the ones from Amsterdam, Berlin and Italy.

Hope it helps

Thank you. I will test

The result is really good. Thank your for your help !!

Do you use Megascan in 3Ds Max ?
I dont really know how set displacement (value) and if i have tu use CoronaDisplacementMod. Megascan no give indication about it.

Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: romullus on 2018-11-29, 23:12:12
Do you use Megascan in 3Ds Max ?
I dont really know how set displacement (value) and if i have tu use CoronaDisplacementMod. Megascan no give indication about it.

Actually Megascan is one of the few content providers that includes extensive information with their products. You just need to open json file in text editor and search for height information. It might be that this info is also available in Bridge or Mixer.
Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: labotory on 2018-12-01, 01:44:21
Hi. Sounds like you're using a bad HDRI, or loaded it with a wrong gamma (use Automatic or manually override with gamma 1).

Try this site: https://hdrihaven.com

It's a free site with lots of high quality HDRIs. I've used some of them, and I only found one or two to be troublesome. I especially like the ones from Amsterdam, Berlin and Italy.

Hope it helps

Thank you for your help.
I used an HDRI from your link. This is the result
Full texture from mégascan and mixer (except bikes)

Title: Re: Need help from someone using Megascan texture on 3Ds Max
Post by: PROH on 2018-12-01, 01:56:36
Glad it helped :)