Forum Groups
  All forums
    Help & Feedback
      Questions
      Work in progress
      Finished Art
      Non-Max related
    Community
      Offtopic
      News
    Hardware
    Photography


Featured Threads
  inspiration alert!!!
(36 replies)
  Indespensible MaxScripts, Plugins and 3rd Party Tools
(37 replies)
  The allmighty FREE Resources Thread !
(17 replies)
  spam alert!!!
(4886 replies)
  Maxforums member photo gallery index
(114 replies)
  Maxforums Member Tutorials
(89 replies)
  three cheers to maxforums...
(240 replies)
  101 Things you didnt know in Max...
(198 replies)
  A Face tutorial from MDB101 :D
(95 replies)
  Maxforums.org Members Gallery
(516 replies)
  SON OF POST YOURSELF
(637 replies)
  Dub's Maxscript Tutorial Index
(119 replies)

Maxunderground news unavailable

Mental ray BSP 2 Bug
show user profile  Scheidema
Hi all, I have a question about rendering BSP2 vs BSP

I have a large scene with almost 4 million tris and 2 milion poly's in it.
animated a lot of objects that are passing each other
-Models are mostly redrawn from sketchup models
-Force 2-sided is checked
-and in the materials back face culling is check out

Therefore the setting is advised to set in BSP2 (that is what I'm reading on the internet)

when I rendered this in highres, some parts of objects had problems with BSP 2; they get black flickerings all of a sudden. like it has problem reading the surface of that object.
(Geometry is not rendering complete)
I figured out that this bug reacts with other objects (when passing by) aldo it is very random in this.
My first solution was to put a shell_modifier on the objects that flickered and made it thicker.
this is not ideal because I can't render everything out first and then check for bugs. (time comsuming)

Now I'm testing around a bit and I came to the conclusion that BSP just works better for me!
It is faster then BSP 2 and from the moment I switched the bugs where gone!

What is happening here? Has anyone been having the same issues?


read 322 times
6/24/2016 12:06:28 AM (last edit: 6/24/2016 12:06:28 AM)
#Maxforums IRC
Open chat window


Support Maxforums.org