Itoo Software Forum

Author Topic: reflection problem (vray)  (Read 1679 times)

SG9935

  • Newbie
  • *
  • Posts: 6
reflection problem (vray)
« on: December 30, 2013, 04:33:27 PM »
Hi, Im new in this forum but hope to get an answer to my problem.
its simple: I try to get reflection on my trees.
I press optimize materials and CHECK: trace reflections
... but there is none.
using multiple materials its not so good to do one-by-one in the material editor.

what should I do???

thanks a lot for your help!
Aron

iToo

  • Administrator
  • Hero Member
  • *****
  • Posts: 3318
    • iToo Software
Re: reflection problem (vray)
« Reply #1 on: December 30, 2013, 05:22:06 PM »
"Optimize Materials->Trace Reflections only has effect when converting Standard materials to VRayMtl, turning on the "Options->Trace Reflection" parameter, but it doesn't modify other settings that may be necessary to get reflections.

You must adjust your materials manually, and the right settings depends of each render engine. For VRay, usually you must increase Reflection->Reflect (which is 0 by default).
« Last Edit: December 30, 2013, 05:25:01 PM by iToo »
Carlos Quintero
iToo Software

SG9935

  • Newbie
  • *
  • Posts: 6
Re: reflection problem (vray)
« Reply #2 on: December 30, 2013, 06:02:48 PM »
Ahh I got it now... thank you for your fast reply!

im wondering though, it would be great to have at least a script to enable reflection on all of the leaf materials (plus make them double sided for translucency?)
would be fantastic to improve materials that by default are fast but less realistic.

doing it manually is a real pain, if I open the material editor it has endless materials... just impossible...

yuv

  • iToo Software
  • Sr. Member
  • *****
  • Posts: 312
  • iToo Software - CEO
    • Itoo Software
Re: reflection problem (vray)
« Reply #3 on: December 30, 2013, 07:01:45 PM »
The material optimizer only gives you a starting point for good look and quick render, but most of times is necessary to tune the materials for your workflow and quality requirements. The VRay material creation is a very complex task and is beyond of Forest Pack support that we can provide.

I can recommend two articles about this topic:

http://www.peterguthrie.net/blog/2009/11/3d-tree-material-tutorial-leaves/
http://help.chaosgroup.com/vray/images/stuff/leaf_tutorial/

Regarding to the automation,  to apply more easily global changes to all your VRay materials you can use this script from Oliver Radford:

http://vrayworld.com/index.php?section=tutorials&category=useful+tips&tutorial=useful-scripts-vray-material-control-201
« Last Edit: December 30, 2013, 07:19:06 PM by yuv »
Daniel Quintero
Itoo Software
www.itoosoft.com
daniel@itoosoft.com

SG9935

  • Newbie
  • *
  • Posts: 6
Re: reflection problem (vray)
« Reply #4 on: December 30, 2013, 09:25:39 PM »
amazing support!
this is exactly what I needed... Thank you very very much!