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View Full Version : mip_matteshadow & Render Stats questions.


RagingBull
08-20-2010, 01:56 PM
Hey guys,

I'm just trying to find out how to correctly use mip_matteshadow with a ground plane again, and secondly using an HDRI (with diffuse SH applied) for the IBL but also a high res file for the reflections.

So in my scene I am just using a matchmoved backplate, with some very simple geometry on top of a ground plane, just to get the basics of lighting and other correct work flow features in place.

The ground plane has the matteshadow material applied to it as it has much better features than 'useBackground'. However, what do I need to set in the Render Stats of the ground plane?
As some of my objects that are sitting on the ground could be reflective, so there are some changes in the Render Stats which need to be changed but I can't remember what settings to use :argh: (it's been a while since I've done this).

Secondly.
I'm want to use 1 high resolution image for reflections, and 1 low resolution but with diffuseSH (blurred) applied to it HDRI plugged into the IBL feature of MR.
I can't remember the Render Stats for the MR IBL sphere, and I guess I just make another large sphere for the high resolution reflections but once again, what Render Stats do I use for that.

Can't believe I've forgotten it all again :banghead:

Note:
I'm using 2011 & LWF (which makes things a bit tricky too).

(Perhaps I should use SmartIBL ?)

RagingBull
08-24-2010, 11:08 PM
I guess the questions didn't make sense ?

johnchen
08-29-2010, 02:15 PM
Hi, Im no expert but I think these 2 links might help?

http://www.crazy8studio.com/assets/HDRI%20and%20Mental%20Ray.pdf

http://mayastation.typepad.com/maya-station/2010/08/light-emission-from-ibl-node-increase-render-time-in-maya-2011.html

GL

RagingBull
08-29-2010, 04:50 PM
Thank you for the links, I shall fire up Maya later today and see if they are helpful to my situation :beer:

johnchen
08-29-2010, 10:31 PM
no worries, I'm actually trying to learn about a similar topic so I already had the links. :)

I think however you might find this one more relevant.

http://www.djx.com.au/blog/2008/04/08/mip_matteshadow-and-how-i-have-used-it/

cheers

pixelweave
09-02-2010, 04:45 AM
Yes, use SmartIBL.

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