ZAP: "wrong AO default" in MIA

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Hirazi Blue
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ZAP: "wrong AO default" in MIA

Post by Hirazi Blue » 04 Feb 2010, 18:19

On "zap's mental ray tips"-blog there's am interesting new post concerning the AO settings in the MIA Architectural Material in Softimage, which are said to be wrong...
If you use the defaults as-shipped in Softimage 2010, you get an undesired 20% ambient contribution,
and your AO will only apply to that light - not your indirect bounce light.
Read about it here
Stay safe, sane & healthy!

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Rork
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Re: ZAP: "wrong AO default" in MIA

Post by Rork » 12 Feb 2010, 13:59

I logged it as a bug two days ago. Let's say it will be fixed soon ;-)

For now it's easily fixed by editing the spdl and restarting SI.
So with the PPG open, rightclick on 'Architectural' above the tabs, and select 'edit...'.
This will open up the editor for the spdl.

So, before you continue, a warning. YOU CAN SCREW UP YOUR SHADER/INSTALLATION WHEN IT GOES WRONG!! :-t

Aannnd.... to continue:

change line 417 till 439 to:

Parameter "ao_dark" input
{
GUID = "{919A2286-4BF9-4CE6-BCB0-166F8A07B741}";
Type = color;
Value = 0.2 0.2 0.2;
Texturable = on;
}
Parameter "ao_ambient" input
{
GUID = "{1873614D-8D28-4F31-9EF8-1485F431A713}";
Type = color;
Value = 0.0 0.0 0.0;
Texturable = on;
}
Parameter "ao_do_details" input
{
GUID = "{860FFEB8-D691-4A32-AEBA-CE265B8A9568}";
Type = integer;
Value = 1;
Texturable = on;
Value Minimum = 0;
Value Maximum = 2;
}

Save the spdl and restart SI. Reopen the Architectural material and the settings should be changed now.

rob

P.S. If -by any chance- things went wrong, don't come to me complaining I didn't warn you x_x
SI UI tutorials: Toolbar http://goo.gl/iYOL0l | Custom Layout http://goo.gl/6iP5xQ | RenderManager View http://goo.gl/b4ZkjQ
So long, and thanks for all the Fish!!

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Hirazi Blue
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Re: ZAP: "wrong AO default" in MIA

Post by Hirazi Blue » 12 Feb 2010, 22:02

But before you begin, please make a manual copy of the "mia_material.spdl"-file as it resides in your "%sibase%\Application\phenolib\spdl\mibase\"-folder. Just in case!!! :D
Stay safe, sane & healthy!

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