mia_material interpolated reflection problem


#1

hi,

 i was reading the new manual about mia_material. found that it is possible to make some fast blurred reflections using interpolation.
 so i setup scene as mentioned in manual - made reflections like perfect mirror, then enabled interpolation to get it blurred - everything worked fine. 
 but when enabled "detail distance" some wierd artefacts showed up. 

don’t know what’s the problem. if anyone has a solution -it’d be really nice to know it.

 screenshot:

http://forums.cgsociety.org/attachment.php?attachmentid=108750&stc=1


#2

If you have mental ray set to scanline, set it to raytracing and see if that fixes it.


#3

eh, it doesn’t fix…


#4

man, I really need to use the search-button more, posted the exact same question here: http://forums.cgsociety.org/showthread.php?f=87&t=462809

i’ll be monitoring both threads and let you know if I find the answer, sorry about the double-post…


#5

it works fine on my side

did i mess anything?


#6

thanks, ash-man,

seems that these problems were caused by “background color” - setting V higher than 0
fixes this issue.
but if i need ,for example, background to be 100% black…


#7

where is this background colour, is it a parameter in the shader or somewhere else?
Are you talking about the background colour for the whole render or what?


#8

wurp, yes the whole render background color in camera’s attributes…


#9

ahh, thats a bit of a problem then, would be good to see what masterZap has to say about this.


#10

I got this problem in maya 2008 and mental ray 3.6… changing the background color doesnt fix it though

figured it out, BSP2 makes it not work


#11

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