How to recombine passes for glass materia within blender-composel?

Use this forum for general user support and related questions.
Forum rules
Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Post Reply
S0rda
Posts: 96
Joined: Sun May 27, 2018 8:34 am

How to recombine passes for glass materia within blender-composel?

Post by S0rda »

How to recombine passes for glass materia within blender-composel?
User avatar
B.Y.O.B.
Developer
Developer
Posts: 4146
Joined: Mon Dec 04, 2017 10:08 pm
Location: Germany
Contact:

Re: How to recombine passes for glass materia within blender-composel?

Post by B.Y.O.B. »

Which passes did you render?
Can you upload the passes you currently have?
S0rda
Posts: 96
Joined: Sun May 27, 2018 8:34 am

Re: How to recombine passes for glass materia within blender-composel?

Post by S0rda »

Well, I applied all the passes that were in the blender in the luxrender.

Sorry, I can't load this scene.

I will say that the scene is simple - there is a floor, a wall, and a mesh (simple form, but harder than a cube), the scene is currently illuminated with a HDRi map (or just a lamp, or together as well). The glass material is ordinary glass, nothing more. Wall and floor materials are glossy.

I want to change the color of my glass of other materials, for this you need to recombine them. The scheme that I used for plastic, I can not apply for glass (I simply do not understand what and how to combine).
User avatar
B.Y.O.B.
Developer
Developer
Posts: 4146
Joined: Mon Dec 04, 2017 10:08 pm
Location: Germany
Contact:

Re: How to recombine passes for glass materia within blender-composel?

Post by B.Y.O.B. »

I think you just need to add them all together after making the adjustments.
Glass is part of the INDIRECT_SPECULAR AOV.
Attachments
adding the passes produces the same result as the "Combined" output
adding the passes produces the same result as the "Combined" output
with adjustments to the AOV with the glass
with adjustments to the AOV with the glass
S0rda
Posts: 96
Joined: Sun May 27, 2018 8:34 am

Re: How to recombine passes for glass materia within blender-composel?

Post by S0rda »

This seems to be true, but another problem arises. The fact is that I use the add-on filmic blender, but its impact, as I understand it, applies only to the camera. While I render, preview, I can control the exposure and gamma for this addon, is there a way to make it work the same way in the composer?
User avatar
B.Y.O.B.
Developer
Developer
Posts: 4146
Joined: Mon Dec 04, 2017 10:08 pm
Location: Germany
Contact:

Re: How to recombine passes for glass materia within blender-composel?

Post by B.Y.O.B. »

Where can I find this addon?

The built-in filmic that comes with Blender fully works with BlendLuxCore and applies both to the combined pass and the compositing result. You can even edit exposure, gamma and contrast after the render.
S0rda
Posts: 96
Joined: Sun May 27, 2018 8:34 am

Re: How to recombine passes for glass materia within blender-composel?

Post by S0rda »

https://github.com/sobotka/filmic-blender addon is here.
go to C:\Program Files\Blender Foundation\Blender\2.79\datafiles\colormanagement (on Windows) and replace file
User avatar
B.Y.O.B.
Developer
Developer
Posts: 4146
Joined: Mon Dec 04, 2017 10:08 pm
Location: Germany
Contact:

Re: How to recombine passes for glass materia within blender-composel?

Post by B.Y.O.B. »

And with this addon, the normal colorspace controls for exposure/gamma no longer work?
Attachments
2019-03-09_23-34-10.png
S0rda
Posts: 96
Joined: Sun May 27, 2018 8:34 am

Re: How to recombine passes for glass materia within blender-composel?

Post by S0rda »

Please try it yourself. Save the render with the edited exposure and different contrast (very large / very small contrast), and then recombine the image through the nodes. My result is very different. At the same time, the gamma and other correction does not work as the exposure would have with this add-on, because it works with a high dynamic range (although I don’t understand what the EXR problem is, because it also works in a high dynamic range).
Post Reply