Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: vermu on 2018-01-10, 17:01:18

Title: Window reflections
Post by: vermu on 2018-01-10, 17:01:18
Hi,

I am using hdri map to light the scene. What's the best option to get desired reflections to windows in one pass render? Glass materials override slot does not override totally hdri reflections. It's a bit mixed result. If I use plane with desired background every reflective material reflects it. I would like to just windows reflect the background on the plane. So what would be the best option?
Title: Re: Window reflections
Post by: Jadefox on 2018-01-10, 17:48:59
Still use the Hdri as override but try increasing the output of the Hdri untill you can clearly see the difference in the material preview.
Title: Re: Window reflections
Post by: romullus on 2018-01-10, 20:31:01
It's hard to tell without seeing the scene, but probably what you see is refraction. You can use refraction override or disable refraction altogether for your glass, whatever works in your situation.
Title: Re: Window reflections
Post by: vermu on 2018-01-10, 21:24:46
It was refraction that caused the mix. It's abit pain to use jpeg in override slot cause it's really hard to adjust the right part of the image to reflection.

I like to use lightmaterial on plane and put my bg image there so window reflection catches that plane. Is there any to to tell corona that the image on plane should only be reflected by windows and not affect any other material or object?
Title: Re: Window reflections
Post by: maru on 2018-01-11, 09:27:09
Is there any to to tell corona that the image on plane should only be reflected by windows and not affect any other material or object?

I am afraid there is no way to reflect only specific object in a specific object.

The only solution seems to be using reflection/refraction overrides in the specific material.
Title: Re: Window reflections
Post by: sprayer on 2018-01-11, 14:03:12
maru you can remove checkbox in object properties of every object except what need to reflect, but this workflow is stupid =)