Messages

1

[Max] Resolved Bugs / Re: Multi-material, normal maps, dont work correctly for light paths

« on: 2015-07-03, 14:28:56 »

Thanks maru for your quick response. I was a bit afraid of that, a beta algorithm in a beta renderer.

A pity that is still the case in v1+. Can I expect this to be fixed any time soon?
I understand VCM etc. does not have the priority.

2

[Max] Resolved Bugs / Re: Multi-material, normal maps, dont work correctly for light paths

« on: 2015-07-02, 17:28:08 »

Ok, I don't know how to insert inline images, but anyways see attached.

Scene setup: scene_setup
The red face has a different material ID.

Then two cases:

Multimaterial

Here, if I use two different material instances, that are identical in setup, the refraction doesn't work on the top interface.
If I use two times the same material instance it does work.

Normal map

Here I use a noise normal map to make the surface rough. It works for the appearance, the eye paths, but the photons
are not scattered, the ray stays collimated.

I'm using VCM by the way, see also attached max file.

3

[Max] Resolved Bugs / Multi-material, normal maps, dont work correctly for light paths

« on: 2015-07-02, 09:34:07 »

Hi, I've been experimenting with shaping the distribution of light output with normal maps and displacement maps applied to a single surface of an object.

I looks like the ray tracing from the camera, the eye path, takes this in account correctly, but the photon mapping and light paths are not affected by
normal maps at all, and if I start using multimaterials with different sub materials even simple refraction of photons seems to break.

This is in alpha version 6.1, and using VCM or light tracing.

Am I correct? Is this also the case in the commercial version?
Is there a work around, or pending bug fix?

Thanks!

Chris.