MayaToIndigo material presets

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dougal2
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MayaToIndigo material presets

Post by dougal2 » Tue Nov 06, 2007 12:26 pm

quick render, ruined by mspaint. anyway, I rendered the blinn and phong presets.
(the lambert ones were not very interesting to look at, and the phongE ones didn't work).
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mtiPresets.JPG
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dougal2
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Post by dougal2 » Tue Nov 06, 2007 12:29 pm

couple of things to note...
1. the amethyst used to be green.
2. coke isn't very dark
3. smokeAir has cauchy_b enabled? how come we can't see the caustic through it??? :?
4. stretched rubber apparently would benefit from a scratchmap

i think 1+2 may be my fault - i'll compare with an earlier revision tomorrow.
EDIT: oh, amethyst is supposed to be light purple? perhaps i fixed it ;)

(btw, the lambert presets are
A. whitewall = simple diffuse white
B. 40W bulb @ 4800K

and the phongE are
A. funkyFloor (requires a decent blendmap)
B. mti_mtiKeyDescription --- ??? )

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CTZn
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Post by CTZn » Tue Nov 06, 2007 12:33 pm

I'm wondering now if gamma shouldn't be 1 in MtI, instead of 2.2... the coke looks light as if I had a pee in it erf. The red itself is shiny but washed out. So... gamma or post-pro issue ?

Nice initiative Dougal, to be continued !
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bkircher
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Post by bkircher » Tue Nov 06, 2007 7:13 pm

Great, Dougal!
Is it possible to add a scale to the scene?
Can you post the scene then, in the PM perhaps?

I'll add a mirror to the blinns.

For some materials, we have to use the texture maps:
As the presets can execute mel.commands, maybe I'll try a preset that
adds the custom texture attributes directyl, like mtiLeather_addTextureMap, but that's for later.

If someone finds the time, he can grab the Maxwell Presets from one of the forums here and make lambert presets with them.

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dougal2
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Post by dougal2 » Tue Nov 06, 2007 10:10 pm

i used default spheres, they're probably about 1m across. didn't save the scene, but it'd be easy to recreate.

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Kram1032
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Post by Kram1032 » Wed Nov 07, 2007 6:52 am

the reason, why the caustics of the smoky air don't look through the glass, is, that these are very rare paths - it will take forever ;) AND, even worse, there is heavy chromatic dispersion going on, which leads even more rays to be killed ;)

It looks pretty cool, but it doesn't look realistic at all.
The IoR is far too high for air and the cbc, if noticeable at all, is FAR weaker.
Therefore, your water completely lacks of those values...

If those spheres are all 1m diameter, you definitely have all the transparent values far too weak.

http://en.wikipedia.org/wiki/Amethyst for the Amethyst. look! They're all purple, even if weak, in some cases.... but still: none of those pics shows anything close to the size of a 1m diameter sphere and *all* of them at least have *slight* colours!

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dougal2
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Post by dougal2 » Wed Nov 07, 2007 6:54 am

yeah good points.

any suggestions for any presets that are worth having?
anyone want to link me to/or submit any materials that can be used as presets.

I'll work on a material preview scene later, and do some further tests.

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Kram1032
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Post by Kram1032 » Wed Nov 07, 2007 7:01 am

no cbc for water but there are those tabulated spectrum values from CCJ :)
And you could try to add WytRaven's Schott Glass Catalogue (or at least some more important glasses, for example, one type of lead glass, one for this, one for that.....)

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Dacksoldier
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Post by Dacksoldier » Wed Nov 07, 2007 12:12 pm

the smoky air looks more like a bubble

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