Topics

1

[Max] I need help! / Invisible to camera but obscuring everything hidden by this object.

« on: 2024-04-08, 10:55:31 »

Hi,

I have two objects.

I would like one object to be invisible to the camera, casting a shadow and reflections but at the same time obscuring everything hidden behind it so that the alpha is transparent ( there should be a background in place of the object).
All in all, something like a Boolean operation, I cut one object with another but it needs all the shadows and reflections.

Any ideas how to do this?

2

[Max] I need help! / Separating reflections?

« on: 2020-04-29, 16:23:02 »

Hello!

I created a simple scene that shows my problem. There is a blue wall, this color is on brass reflections and table. If I would like to change color in photoshop of the wall and all of blue reflections, there are plenty of solutions for example color range.



Using CESSENTIAL_Reflect I have every reflections, brass, wall, table. It is possible to render only blue wall reflections on every objects and materials? Decompose reflections? To have blue color mask directly from render. Or I am over engineering it? Do it in photoshop and go away ;D?

3

[Max] I need help! / Shadow catcher interior scene.

« on: 2019-10-08, 20:41:34 »

Hello!

I have simple interior test scene. There is object on the shelf, two windows (with corona portals), sun light + skylight + one corona light inside. I want to catch only object shadows from shelf and the wall (the wall, floor, ceiling is one single mesh). How to do this correctly?

edit:
This is how my alpha look:

It's grey for walls etc not pure black.